Article
Chemistry, Multidisciplinary
Ilias Papadopoulos, David Gutierrez-Moreno, Yifan Bo, Ruben Casillas, Phillip M. Greissel, Timothy Clark, Fernando Fernandez-Lazaro, Dirk M. Guldi
Summary: In this study, a series of phenylene- and naphthalene-linked dimers were designed and synthesized to investigate the inherent differences in monoimide and diimide perylenes and their impact on singlet fission. The results showed that using naphthalene spacers improves the triplet quantum yield and singlet fission performance of both monoimide and diimide perylene derivatives.
Article
Multidisciplinary Sciences
Stefanie A. Meissner, Theresa Eder, Tristan J. Keller, David A. Hofmeister, Sebastian Spicher, Stefan-S Jester, Jan Vogelsang, Stefan Grimme, John M. Lupton, Sigurd Hoeger
Summary: By covalently connecting two rigid-rod polymer chains with stiff molecular connectors, the authors successfully created rigid ladder structures with well-defined pi-conjugated rails. This approach enhances molecular rigidity, allowing for intramolecular electronic coupling and leading to deterministic single-photon emission from giant rigid macromolecules. The results have potential implications for energy conversion in optoelectronic devices.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Guanghui Ouyang, Jessica Ruehe, Yang Zhang, Mei-Jin Lin, Minghua Liu, Frank Wuerthner
Summary: The study presents a chiral PBI hetero-cyclophane (BBI-PBI) with intramolecular energy and solvent-regulated chirality transfer from the BBI to the PBI subunit. The combination of excellent spectral overlap and spatial arrangement of BBI and PBI leads to efficient excitation energy transfer and high quantum yield PBI emission in various solvents, while chirality transfer is strongly dependent on the respective solvent. The combination of energy and chirality transfer results in bright red circularly polarized luminescence from the PBI chromophore by excitation of BBI.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Applied
Assia Tafrioucht, Jad Rabah, Krystyna Baczko, Helene Fensterbank, Rachel Meallet-Renault, Gilles Clavier, Francois Couty, Emmanuel Allard, Karen Wright
Summary: An easily synthesized alpha-hydroxy-beta-azidotetrazole scaffold was used to build a three dimensional polychromic system, which exhibited notably efficient energy transfer values.
Article
Chemistry, Multidisciplinary
Zhiling He, Junfeng Zhu, Mingyu Yin, Deyi Liao, Jiajin Feng, Qingguang Zeng, Hui Yu, John H. Xin, Da Wang, Xi Liu
Summary: This study investigates the use of a perylene diimide containing side-chain amines (PDIN) as an organic cathode in lithium batteries. The PDIN cathode exhibits a high capacity and a 4-electron redox reaction, opening up new possibilities for the development of organic cathode materials.
CHEMICAL COMMUNICATIONS
(2023)
Article
Energy & Fuels
Prashant Dubey, Komal Bhardwaj, Rachana Kumar, Shashank Sundriyal, Priyanka H. Maheshwari
Summary: In this study, an organic composite based asymmetric supercapacitor using an optimized amount of perylene diimide (PDI) in combination with activated carbon was developed. The composite sample with 1 wt% PDI showed remarkable electrochemical performance, delivering a high energy density and maintaining good cycling stability. This study provides a new approach for the utilization of organic molecules in supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Jun Han, Yanan Deng, Najun Li, Dongyun Chen, Qingfeng Xu, Hua Li, Jinghui He, Jianmei Lu
Summary: The new PI@BWO hybrid photocatalyst showed enhanced photocatalytic activity and stability for BPA degradation, with the 30% PI@BWO demonstrating optimal degradation efficiency. The Tt-conjugation of PI facilitated charge carrier separation and utilization of sunlight, while the introduction of BWO nanosheets enhanced adsorption capacity and provided more active sites.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Liang Xu, Xueting Long, Fangyuan Kang, Ziqi Deng, Jiaxin He, Sirui Yang, Jieyu Wu, Lingfeng Yin, Xiao-Fang Jiang, Fushen Lu, Ming-De Li, Qichun Zhang
Summary: This study designed and synthesized two compounds with different aggregation-induced emission (AIE) and two-photon absorption (2PA) properties. The compound with ortho-substituted showed enhanced and accelerated AIE performance and improved 2PA properties. By combining accelerated AIE and enhanced 2PA, the performance of the molecules in various fields was improved.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Irene Regeni, Rituparno Chowdhury, Kai Terlinden, Shinnosuke Horiuchi, Julian J. J. Holstein, Sascha Feldmann, Guido H. H. Clever
Summary: This article introduces a strategy to engineer the stacking of diketopyrrolopyrrole (DPP) dyes based on non-statistical metallosupramolecular self-assembly. Different discrete assemblies can be formed by adding Pd(II) to the DPP backbone equipped with nitrogen-based donors, distinguished by the number of π-stacked chromophores. We obtained and systematically investigated a Pd3L6 three-ring, a heteroleptic Pd2L2L’2 ravel composed of two crossing DPPs (flanked by two carbazoles), and two unprecedented self-penetrated motifs (a Pd2L3 triple and a Pd2L4 quadruple stack). With increasing counts of stacked chromophores, UV/Vis absorptions red-shift and emission intensities decrease, except for compound Pd2L2L’2, which has an exceptional photoluminescence quantum yield of 51% explainable by an intra-assembly FRET process. The modular design and synthesis of soluble multi-chromophore building blocks offer potential for the preparation of nanodevices and materials with applications in sensing, photo-redox catalysis, and optics.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Polymer Science
Elisa Della Latta, Francesca Sabatini, Cosimo Micheletti, Marco Carlotti, Francesca Martini, Francesca Nardelli, Antonella Battisti, Ilaria Degano, Marco Geppi, Andrea Pucci, Svenja Pohl, Guido Kickelbick
Summary: In this study, flexible luminescent solar concentrators (LSCs) with a size of 5 x 5 cm(2) were prepared by integrating a reactive perylene bisimide fluorophore (FC546) into a polysiloxane network. The LSCs exhibited higher thermal and light stability, as well as superior device efficiency, compared to other similar-sized flexible LSC systems.
Article
Chemistry, Multidisciplinary
S. Hou, Y. Li, J. Yang, Y. Wang, H. Lin, S. Chen, J. Zhou, S. Zhuo, Y. Liu, Y. Wu
Summary: A triplet energy transfer (TET) system based on PBI-FN and PbS quantum dots (QDs) with different sizes was constructed and the TET kinetics between PBI-FN ligands and PbS QDs were investigated. The energy transfer process from PBI-FN to PbS QDs was successfully realized by controlling the TET driving forces using PbS QDs with different band gaps. The attenuation of various paths in the TET system is a complex photophysical process, and this work provides guidance for the design of TET systems from the perspective of dynamics.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Ningning Tang, Jiadong Zhou, Liangxuan Wang, Matthias Stolte, Guojing Xie, Xinbo Wen, Linlin Liu, Frank Wuethner, Johannes Gierschner, Zengqi Xie
Summary: Nano-sized PBI dyes achieve deep-red emission and avoid common quenching pathways by tuning the dihedral angle between the aromatic and alkoxy groups.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Organic
Oliver Nagler, Kazutaka Shoyama, Olga Anhalt, Matthias Stolte, Rajeev K. Dubey, Zengqi Xie, Frank Wuerthner
Summary: In this study, a new synthetic strategy was reported to control the structural and fluorescence properties of perylene bisimide (PBI) dyes by employing a 1,12-bay-substitution pattern. Novel perylene dyes with excellent structural and optical properties were successfully obtained through further functionalization of 1,12-dihydroxy-PBI derivatives.
ORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Hao Loong, Jiadong Zhou, Nianqiang Jiang, Yi Feng, Guojing Xie, Linlin Liu, Zengqi Xie
Summary: We synthesized perylene bisimide-based triads with different distances between donor and acceptor to study their influence on excited state electron processes. Different charge transfer lifetimes were observed in dichloromethane for these triads. Through calculation of charge transfer free-energy changes, it was found that cascading charge transfer processes play an important role in tuning charge transfer lifetime in multichromophoric systems.
JOURNAL OF PHYSICAL CHEMISTRY B
(2022)
Article
Chemistry, Physical
Chris Rehhagen, Shahnawaz Rafiq, Kyra N. Schwarz, Gregory D. Scholes, Stefan Lochbrunner
Summary: Exciton migration is a crucial process for light harvesting in organic systems, but it is often hindered by the formation of trap states. In this study, the mobility of singlet and excimer excitons in nanoparticles made of perylene bisimide molecules was compared. The results showed that the mobility of excimer excitons can be higher than that of singlet excitons, and it is influenced by the intermolecular electronic coupling.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Haoxiang Zeng, Derrick A. Roberts
Summary: Synthetic polymers can self-assemble into unique structures with properties determined by their nanoscale morphology. Research into 'smart' polymer assemblies that can undergo morphological transformations in response to external stimuli has been fueled by post-polymerisation modification reactions and techniques like polymerisation induced self-assembly (PISA). These transformations can modulate the properties of polymer assemblies, offering potential for creating smart materials that can dynamically adapt to changes in the environment.
AUSTRALIAN JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Yu Liu, Terry J. Frankcombe, Timothy W. Schmidt
Summary: This article introduces a method called fermionic tiling for analyzing and visualizing high-dimensional wave functions. The method allows for the visualization of the complete electronic structure, including correlation effects, and reproduces canonical chemical motifs. The article also provides examples of the application of fermionic tiling, including visualizing electron motions and electron correlation in resonance structures.
JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Article
Energy & Fuels
Mohammadreza Aghaei, Xitong Zhu, Michael Debije, Wallace Wong, Timothy Schmidt, Angele Reinders
Summary: This article simulates various design configurations of luminescent solar concentrator photovoltaic (LSC-PV) devices and evaluates their optical and electrical performance. The results demonstrate the potential of these colorful LSC-PV technologies in renewable energy generation.
IEEE JOURNAL OF PHOTOVOLTAICS
(2022)
Editorial Material
Chemistry, Physical
Chenchen Yang, Harry A. Atwater, Marc A. Baldo, Derya Baran, Christopher J. Barile, Miles C. Barr, Matthew Bates, Moungi G. Bawendi, Matthew R. Bergren, Babak Borhan, Christoph J. Brabec, Sergio Brovelli, Vladimi Bulovic, Paola Ceroni, Michael G. Debije, Jose-Maria Delgado-Sanchez, Wen-Ji Dong, Phillip M. Duxbury, Rachel C. Evans, Stephen R. Forrest, Daniel R. Gamelin, Noel C. Giebink, Xiao Gong, Gianmarco Griffini, Fei Guo, Christopher K. Herrera, Anita W. Y. Ho-Baillie, Russell J. Holmes, Sung-Kyu Hong, Thomas Kirchartz, Benjamin G. Levine, Hongbo Li, Yilin Li, Dianyi Liu, Maria A. Loi, Christine K. Luscombe, Nikolay S. Makarov, Fahad Mateen, Raffaello Mazzaro, Hunter McDaniel, Michael D. McGehee, Francesco Meinardi, Amador Menendez-Velazquez, Jie Min, David B. Mitzi, Mehdi Moemeni, Jun Hyuk Moon, Andrew Nattestad, Mohammad K. Nazeeruddin, Ana F. Nogueira, Ulrich W. Paetzold, David L. Patrick, Andrea Pucci, Barry P. Rand, Elsa Reichmanis, Bryce S. Richards, Jean Roncali, Federico Rosei, Timothy W. Schmidt, Franky So, Chang-Ching Tu, Aria Vahdani, Wilfried G. J. H. M. van Sark, Rafael Verduzco, Alberto Vomiero, Wallace W. H. Wong, Kaifeng Wu, Hin-Lap Yip, Xiaowei Zhang, Haiguang Zhao, Richard R. Lunt
Summary: The lack of consensus on reporting standards in LSC-PV research hinders fair performance comparison among reports. Standardized characterization protocols are necessary for emerging PV devices to harmonize with other PV devices. The commentary highlights common limitations in LSC literature and suggests best practices for moving forward to achieve meaningful advances in LSC-PV research.
Article
Engineering, Biomedical
Alessondra T. Speidel, Phillip R. A. Chivers, Christopher S. Wood, Derrick A. Roberts, Ines P. Correia, April S. Caravaca, Yu Kiu Victor Chan, Catherine S. Hansel, Johannes Heimgaertner, Eliane Mueller, Jill Ziesmer, Georgios A. Sotiriou, Peder S. Olofsson, Molly M. Stevens
Summary: Polyurethane-based hydrogels with tunable mechanical properties and nonfouling characteristics have been synthesized and tested for various applications. The gels show excellent biocompatibility and reduced cellular adhesion compared to a mechanically matched formula. Preliminary implant studies indicate a mild foreign body response. This method offers a simplified platform for fabricating soft PU-based biomaterials.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Sai Shruthi Murali, Joseph K. Gallaher, Celine Janiseck, Elliot J. Tay, Isabella Wagner, Karen E. Thorn, Aleksandra Ilina, Ronnie R. Tamming, Jiayu Wang, Clement Sester, Joshua J. Sutton, Michael B. Price, Keith C. Gordon, Kai Chen, Xiaowei Zhan, Justin M. Hodgkiss, Paul A. Hume
Summary: The control over singlet and triplet exciton populations is crucial for organic semiconductor technologies. This study investigates the rate of intersystem crossing (ISC) and demonstrates the occurrence of intramolecular triplet formation in both solution and solid state. It is found that structural distortions in disordered films lead to increased spin-orbit coupling, enabling rapid ISC. The proposal also reveals the role of rotational flexibility and conformational disorder in accelerating ISC. Overall, this work sheds light on the factors affecting ISC and provides a framework for molecular control over spin states.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Analytical
Amy Witzmann, Calum K. Gordon, Jesse Howarth, Sophie Unsworth, Aurelien Rossi, Jake Hardy, Michael B. Price, Nathaniel J. L. K. Davis
Summary: The lighting industry is a major consumer of energy. Current luminescent white lighting has various issues, such as impurity, inefficiency, high cost, and point source emission. This study presents a luminescent light diffuser that can emit spatially broad white light. By coating a waveguide with a polymer matrix containing luminescent dyes and directing a LED into it, a device emitting pure white light was achieved. The efficiency and size of the device were improved by optimizing the coating film quality and components.
Article
Nanoscience & Nanotechnology
Calum K. Gordon, Lara D. Browne, Sanutep Chan, Matthew W. Brett, Chase Zemke-Smith, Jake Hardy, Michael B. Price, J. Nathaniel
Summary: Luminescent solar concentrators (LSCs) use a planar-waveguide to concentrate light, but photon reabsorption hinders their commercialization. Nanotetrapod-based LSCs were developed to overcome this issue, achieving high external quantum efficiencies of up to 4.9%. Through optical characterization, reabsorption was eliminated in the largest nanotetrapod devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Roslyn Forecast, Francesco Campaioli, Timothy W. Schmidt, Jared H. Cole
Summary: Upconversion processes convert multiple low energy photons into one higher energy photon and have potential applications in photovoltaics and biomedicine. This study focuses on two specific mechanisms for photochemical upconversion in solution: triplet-triplet annihilation (TTA) and singlet oxygen mediated energy transfer (SOMET). A kinetic model is developed to explain the different photoluminescence profiles of oxygenated and deoxygenated systems, and the triplet-triplet annihilation rate constant is estimated from the magnetic field response. Design principles to maximize upconversion photoluminescence intensity in oxygenated solution are determined.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Physical
Damon M. de Clercq, Jiong Yang, Muhammad Hanif, Jessica Alves, Jiale Feng, Michael P. Nielsen, Kourosh Kalantar-Zadeh, Timothy W. Schmidt
Summary: Hybrid inorganic-organic semiconducting devices based on monolayer transition metal dichalcogenides (TMDs) have high radiative efficiencies and can form flexible P-N junctions, but the understanding of excitons and charges at the interface between TMDs and organic systems is still limited.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Roslyn Forecast, Elham M. Gholizadeh, Shyamal K. K. Prasad, Simon Blacket, Patrick C. Tapping, Dane R. McCamey, Murad J. Y. Tayebjee, David M. Huang, Jared H. Cole, Timothy W. Schmidt
Summary: The magnetic field dependence of triplet fusion can be used to determine the parameters of triplet fusion collisions. The reduction of magnetic field effect for perylene triplet fusion is observed as the system moves from quadratic to linear annihilation regimes with an increase in laser power. This approach can be applied to screen potential annihilators for photon upconversion.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Anjay Manian, Francesco Campaioli, Rohan J. Hudson, Jared H. Cole, Timothy W. Schmidt, Igor Lyskov, Trevor A. Smith, Salvy P. Russo
Summary: The role of charge transfer states in multi-exciton mechanisms is difficult to model accurately, but the intermolecular packing has been shown to heavily influence these mechanisms. By studying a gas phase perylene dimer, it was found that displaced geometries yield large charge transfer contributions for singlet fission, while triplet-triplet annihilation charge transfer couplings are weak. Slipping of the dimer cofacial geometry is beneficial to both charge transfer-mediated processes within a wavefunction overlap scheme. The results provide insights into singlet fission and can guide further investigations in this field.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Trevor A. Smith, Rohan J. Hudson, Anjay Manian, Christopher R. Hall, Timothy W. Schmidt, Salvy P. Russo, Kenneth P. Ghiggino
Summary: Gating logical operations through high-lying excited states of perylene has potential for the development of ultrafast, subnanometer computational devices. This study uses femtosecond spectroscopy and quantum chemical calculations to investigate the relaxation dynamics of monomeric perylene's higher electronic excited states. The obtained lifetimes of the 2(1)Ag and 2(1)B(2u) states suggest that these states could be useful for logical operations.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
Thilini Ishwara, Jiale Feng, Damon M. de Clercq, Rugang Geng, Jessica Alves, Dane R. Mccamey, Michael. P. Nielsen, Timothy W. Schmidt
Summary: Photochemical upconversion of green to blue light is demonstrated in thin films of nanostructured alumina stained with a metalloporphyrin sensitizer. Efficient upconversion is achieved by filling the pores of the structure with emitter molecules in a concentrated solution. The measured photon generation quantum yield is 9.4%, showing the potential for high-efficiency upconversion within a nanostructured thin-film architecture.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Physical
Benjamin A. Laws, Olha Krechkivska, Klaas Nauta, Scott H. Kable, Timothy W. Schmidt
Summary: Excitation spectra of protonated and deuteronated anthracene were obtained using triple-resonance dissociation spectroscopy. Very cold cations, protonated/deuteronated exclusively at the 9-position, were generated from two-colour two-photon threshold ionisation of 9-dihydroanthracenyl radicals (C14H11). The excitation spectra revealed rich structure, not previously resolved, which was assigned based on anharmonic and Herzberg-Teller coupling calculations. This study showed that excitation of protonated anthracene induces a symmetry-breaking intramolecular charge-transfer process, with the positively charged hole hopping from the central bridging sp(2) carbon onto one of the aromatic rings. Signatures of this charge-transfer event were observed in the excitation spectrum through active Herzberg-Teller progressions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Mengjiao Dong, Liyun Liao, Chensheng Li, Yingxiao Mu, Yanping Huo, Zhong-Min Su, Fushun Liang
Summary: This study investigates the influence of the polarity of polymer matrices on persistent room-temperature phosphorescence (pRTP). It is discovered that intense phosphorescence emission can be achieved in highly polar matrices such as polyacrylic acid (PAA). The dipole-dipole interaction between the polar fluorophore and polar matrix is proposed to stabilize the excited state and facilitate the generation of efficient room-temperature phosphorescence emissions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Han-Jiang Yang, Weijia Xiang, Xiangzhou Zhang, Jin-Yun Wang, Liang-Jin Xu, Zhong-Ning Chen
Summary: This article reports a 2D copper(I)-based cluster material for X-ray imaging, which exhibits ultra-high spatial resolution, high photoluminescence efficiency, and low detection limit. The material shows excellent linear response to X-ray dose rates and light output, and has the best spatial resolution among reported lead-free metal halide hybrids.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Review
Materials Science, Multidisciplinary
Taek Joon Kim, Sang-hun Lee, Dayeong Kwon, Jinsoo Joo
Summary: Donor-acceptor heterostructures using organic-inorganic halide perovskites, two-dimensional transition metal dichalcogenides, pi-conjugated organic small/macro molecules, and quantum dots are promising platforms for exciton-based photonics and optoelectronics. Hetero-interlayer excitons and hetero-intermolecular excitons formed through optical and/or electrical charge transfer in various heterostructures are important quasi-particles for light emission, detection, and harvesting systems.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Liemao Cao, Xiaohui Deng, Zhen-kun Tang, Rui Tan, Yee Sin Ang
Summary: We investigate the interface properties between WSi2N4 and Mo2B, O-modified Mo2B, and OH-modified Mo2B nanosheets. We find that WSi2N4 and Mo2B form n-type Schottky contacts, while functionalizing Mo2B with O and OH leads to the formation of both n-type and p-type ohmic contacts with WSi2N4. Additionally, we demonstrate the emergence of quasi-ohmic contact with ultralow lateral Schottky barrier and zero vertical interfacial tunneling barriers in Mo2B(OH)2-contacted WSi2N4.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ga Eun Kim, Hae-Jin Kim, Heesuk Jung, Minwoo Park
Summary: This study presents a solution to the commercialization challenges of flexible LEDs based on MAPbBr(3) by incorporating polyurethane and an In-Ga-Zn-Sn liquid alloy. The designed devices showed high flexibility, efficiency, and durability, with improved electron injection and reduced defects, making them promising for next-generation displays.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tao Shen, Zeng Wu, Zhen Jiang, Dongsheng Yan, Yan Zhao, Yang Wang, Yunqi Liu
Summary: Sidechain engineering is an important molecular design strategy for tuning the solid-state packing and structural ordering of conjugated polymers. The effects of sidechain direction on the optoelectronic properties of polymers and device performance were systematically investigated in this study. The results demonstrate that tuning the sidechain substitution direction can effectively improve the molecular structure and light absorption properties of polymers, providing new insights for the rational design of functional polymers.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Lotte Clinckemalie, Bapi Pradhan, Roel Vanden Brande, Heng Zhang, Jonathan Vandenwijngaerden, Rafikul Ali Saha, Giacomo Romolini, Li Sun, Dirk Vandenbroucke, Mischa Bonn, Hai I. Wang, Elke Debroye
Summary: In this study, a facile strategy using a non-conductive polymer was proposed to fabricate stable, pinhole-free thick films. The effect of introducing a second phase into CsPbBr3 perovskite crystals on their photophysical properties and charge transport was investigated. The dual phase devices exhibited improved stability and more effective operation at higher voltages in X-ray detection.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jingye Zou, Shenglan Hao, Pascale Gemeiner, Nicolas Guiblin, Omar Ibder, Brahim Dkhil, Charles Paillard
Summary: When rare-earth ions are embedded in a ferroelectric material, their photoluminescence can serve as an all-optical probe for temperature, electric field, and mechanical stimulus. However, the impact of ferroelectric phase transitions on photoluminescence is not well understood. In this study, we demonstrate changes in the photoluminescence of green emission bands during critical ferroelectric transitions in an Er-doped BaTiO3 material. We also find that the intensity ratio and wavelength position difference of sub-peaks provide information on the phase transitions.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Jiangchao Han, Daming Zhou, Wei Yang, Chen Lv, Xinhe Wang, Guodong Wei, Weisheng Zhao, Xiaoyang Lin, Shengbo Sang
Summary: Rare type-II spin-gapless semiconductors (SGSs) have attracted increasing attention due to their unique spin properties. In this study, the interface contacts and spin transport properties of different devices composed of VSi2P4 ferromagnetic layers were investigated. The results show that VSi2P4 is a promising material for designing vertical van der Waals heterostructures with a giant tunnel magnetoresistance (TMR) in spintronic applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Tianqi Zhao, Renagul Abdurahman, Qianting Yang, Ruxiangul Aiwaili, Xue-Bo Yin
Summary: In this study, we designed and prepared Cr and Ba-doped gamma-Ga2O3 nanoparticles to achieve near-infrared emission and enhance the emission intensity. The emission mechanism was proposed based on the trap depth, band gap, and energy levels of Cr ions. The ratiometric temperature sensing and encryption information transfer demonstrated the potential applications of this technology.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Shuvankar Gupta, Jyotirmoy Sau, Manoranjan Kumar, Chandan Mazumdar
Summary: In this study, a new spin-gapless semiconductor material CoFeMnSn is reported, and its stable structure and spin-polarized band structure are determined through experimental realization and theoretical calculations. The compound exhibits a high ferromagnetic transition temperature, making it excellent for room temperature applications. The nearly temperature-independent resistivity, conductivity, and carrier concentration of the compound, adherence to the Slater-Pauling rule, and the high intrinsic anomalous Hall conductivity achieved through hole doping further confirm its spin-gapless semiconductor nature. Additionally, the compound's SGS and topological properties make it suitable for spintronics and magneto-electronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Ikumi Aratani, Yoji Horii, Yoshinori Kotani, Hitoshi Osawa, Hajime Tanida, Toshiaki Ina, Takeshi Watanabe, Yohko F. Yano, Akane Mizoguchi, Daisuke Takajo, Takashi Kajiwara
Summary: In this study, two-dimensional arrays of single-molecule magnets (SMMs) based on metal-organic frameworks (MOFs) were systematically modified through Langmuir-Blodgett methods and chemical modifications. The introduction of bulky alkoxide groups induced structural changes and perpendicular magnetic anisotropy. This research provides a promising strategy for the construction of high-density magnetic memory devices using molecular spintronics.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Zonghao Lei, Houhe Dong, Lijie Sun, Bing Teng, Yanfei Zou, Degao Zhong
Summary: Researchers have successfully developed four different up-conversion phosphors based on the Eulytite-type host Ba3Yb(PO4)(3). The optical temperature sensing properties of these phosphors were thoroughly investigated, and it was found that Ba3Yb(PO4)(3):Tm/Er/Ho showed potential for optical temperature measurement applications.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
C. Roncero-Barrero, M. A. Carvajal, J. Ribas-Arino, I. de P. R. Moreira, M. Deumal
Summary: This study computationally investigates the conductivity of four isostructural compounds with different Se contents, and reveals the parameters that define their conductivity in stable organic radical materials. The results provide insights into the influence of Se content on the conductivity and highlight the importance of considering multiple parameters in understanding the trends in conductivity.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
Article
Materials Science, Multidisciplinary
Remi Arras, Kedar Sharma, Lionel Calmels
Summary: In this study, we investigated the interplay between structural defects in NiFe2O4, showing that the complex formed by a Ni-Oh/Fe-Td-cation swap and a neutral oxygen vacancy is more stable than these two isolated defects, and significantly reduces the width of the minority-spin band gap.
JOURNAL OF MATERIALS CHEMISTRY C
(2024)
