Article
Nanoscience & Nanotechnology
Mengqi Cui, Na Li, Yuying Wang, Yuting Li, Xia Tian, Xingchen Zhang, Wenting Wang, Zhongmin Liu, Qikun Rong, Xingsen Gao, Guofu Zhou, Li Nian
Summary: This study demonstrates an effective and simple approach to optimize the performance of both cathode and anode interlayers in organic solar cells by doping them with 4-heptyl-4'-cyanobiphenyl (7CB). Devices with 7CB-doped interlayers show increased short-circuit current density, fill factor, and power conversion efficiency compared to undoped interlayers, regardless of whether it is the anode or cathode interlayer, which is a rare phenomenon in the field of interlayer modification.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Zengliang Pei, Di Hu, Wenlong Liu, Zhe Yin, Yonggang Wu, Xinjun Xu, Youzhi Wu, Zhishan Bo
Summary: Researchers modified a bivalent tin (Sn2+) doped phosphomolybdic acid (HPMo-Sn) with a carbazole derivative (2PACz) to increase its conductivity and used it as an effective hole transport layer (HTL) in organic solar cells. The modified HTL exhibited improved hole transport ability, enhanced conductivity, increased exciton dissociation efficiency, and low nonradiative energy loss, leading to higher power conversion efficiency in the solar cells.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zahra Samavati, Alireza Samavati, Ahmad Fauzi Ismail, Tohid N. Borhani, Mohammad Velashjerdi, B. Ghasem Eisaabadi, Amir Rostami, Mohd Hafiz Dzarfan Othman, Asmahani Awang
Summary: The study found that using vertically oriented zinc oxide nanorods as photo-anodes significantly improves the photovoltaic efficiency of organic solar cells, including increasing the open-circuit voltage and conversion performance. Additionally, the vertical nanorod structure facilitates electron mobility and oxygen reduction electro-catalytic action, reducing charge-transfer resistance and improving cell performance. This research contributes to sustainable electricity generation by reducing the reliance on non-renewable energy sources.
JOURNAL OF NANOSTRUCTURE IN CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Haitao Xu, Helong Zou, Dan Zhou, Lifu Zhang, Xunfan Liao, Lie Chen, Yiwang Chen
Summary: PCPDT-2Ph-H, as a thickness-insensitive anode interface layer, is crucial for large-area organic solar cells, providing high efficiency and suitability for large-area printing production.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Lingwei Feng, Shihao Chen, Kai Zhang, Jianhua Jing, Zhisheng Zhou, Qifan Xue, Zixian Liu, Yanwei Chen, Sheng Dong, Fei Huang, Yong Cao
Summary: In the field of organic solar cells, the role of the interfacial layer is to enhance carrier extraction/transportation and inhibit recombination. This study reports the use of a polyoxometalate-based inorganic molecular cluster, ZnPW, as an anode interfacial layer in organic solar cells. The device with ZnPW modification achieved higher power conversion efficiency and fill factor compared to the device with PEDOT/PSS. The ZnPW-modified devices also showed improved photostability and storage stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Ping Cai, Xiaofang Huang, Tao Zhan, Guiting Chen, Rihang Qiu, Lianjie Zhang, Xiaogang Xue, Zhongmin Wang, Junwu Chen
Summary: A novel cross-linkable and alcohol-soluble pyridine-incorporated polyfluorene derivative, PFOPy, was synthesized and used as a cathode interface layer in organic solar cells (OSCs), exhibiting excellent solvent resistance, reduced work function, and improved interface contact, leading to significant improvements in photovoltaic performance and stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Energy & Fuels
Xiaohei Wu, Xinrong Yang, Yimin Shao, Yuan Gao, Ji Wan, Sergey Ponomarenko, Yuriy Luponosov, Rui Sun, Jie Min
Summary: A combinatorial approach using ternary blend strategy and layer-by-layer (LbL) process is employed to finely manipulate the active layer of all-polymer solar cells (all-PSCs) and achieve admirable vertical phase separation, which is crucial for high performance. The optimized microstructure of the ternary system not only improves charge generation and transport properties, but also reduces nonradiative energy loss, resulting in all-PSCs with a promising power conversion efficiency of 17.74%.
Article
Chemistry, Multidisciplinary
Md Hasan Ali, Md Abdullah Al Mamun, Md Dulal Haque, Md Ferdous Rahman, M. Khalid Hossain, Abu Zafor Md Touhidul Islam
Summary: Researchers are interested in MoS2-based solar cells due to their semiconducting characteristics. This study aims to improve the performance of the proposed Al/ITO/TiO2/MoS2/In2Te3/Ni solar cell and analyze the effects of In2Te3 and TiO2 on various performance parameters. SCAPS simulation software is used to analyze factors such as thickness, carrier concentration, and interface defects. The proposed solar cell with In2Te3 shows higher PCE, VOC, JSC, and FF values compared to the reference cell without In2Te3. This research provides insights for developing cost-effective MoS2-based thin-film solar cells.
Article
Chemistry, Multidisciplinary
Alem Araya Meresa, Tae-won Lee, Solin Lee, Felix Sunjoo Kim, Kwangyong Park
Summary: Three novel tetraaryldiamines were synthesized and applied as an interlayer in PTB7-Th:PC71BM solar cells. The results showed that they could enhance the power conversion efficiency and external quantum efficiency of the cells, as well as improve their environmental stability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Engineering, Chemical
Milad Tahmasbi, Majid Siavashi, Amir Mohammad Norouzi, Mohammad Hossein Doranehgard
Summary: This study investigates the use of porous metal foams to enhance the thermal and energy efficiencies of photovoltaic-thermal collectors. Results show that the utilization of porous media can improve the system efficiencies, but at the cost of increased pressure drop.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Review
Chemistry, Physical
N. Suresh Kumar, K. Chandra Babu Naidu
Summary: Perovskite solar cells have garnered much attention in recent years due to their high power conversion efficiency, simple fabrication process, lightweight nature, and stability. Research has focused on the crystallinity, morphology, synthesis techniques, and potential commercialization feasibility of different layers in perovskite solar cells.
JOURNAL OF MATERIOMICS
(2021)
Article
Physics, Multidisciplinary
Neda Ahmadi
Summary: This study investigates the impact of the position of gold nanoparticles on the optical parameters of organic solar cells, as well as the influence of the thickness of the anode interface layer. By comparing the use of gold and silver nanoparticles in different positions, it provides insights for new perspectives and light management in organic solar cells.
Article
Chemistry, Multidisciplinary
Gururaj P. Kini, Yong Woon Han, Sung Jae Jeon, Yoon Jae Lee, Doo Kyung Moon
Summary: In the research of organic solar cells, developing efficient and low-cost photovoltaic materials by inserting fluorine and nitrogen substituents has been a successful strategy. In this study, two new low-cost polymer donors were synthesized and compared to investigate the effects of inserting fluorine and nitrogen substituents on the morphology and photovoltaic performance. The results showed that the insertion of nitrogen substituents led to improved coplanarity, lower bandgap, enhanced crystallinity, and improved molecular ordering, resulting in a higher power conversion efficiency compared to the insertion of fluorine substituents.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Yunfei Jiao, Shuaishuai Liu, Zhongjin Shen, Le Mao, Yongjie Ding, Dan Ren, Felix Thomas Eickemeyer, Lukas Pfeifer, Dapeng Cao, Wenjuan Xu, Juan Song, Baoxiu Mi, Zhiqiang Gao, Shaik M. Zakeeruddin, Wei Huang, Michael Gratzel
Summary: Heteroaromatic units are commonly used as pi-spacers for sensitizers in dye-sensitized solar cells. The type of pi-spacer strongly influences the solar to electric power conversion efficiency of organic dyes, with electron-rich pi-spacers leading to higher efficiency. Molecular engineering plays a crucial role in developing high efficiency organic dyes for DSSCs.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Energy & Fuels
Maria Khalid, Tapas Kumar Mallick
Summary: Perovskite solar cells (PSCs) have shown great potential as the next generation of PV devices due to their rapidly increasing power conversion efficiencies. However, their long-term stability is a critical issue that needs to be addressed before commercialization. This review discusses the evolution of solar cells, the characteristics of perovskite, strategies to improve performance, and the relationship between stability and environmental conditions. Additionally, the review explores the idea of implementing PSCs with concentrated PV applications for higher efficiency and competitiveness.
Article
Chemistry, Physical
Teng Zhang, Albert Sole-Daura, Hugo Fouilloux, Josep M. Poblet, Anna Proust, Jorge J. Carbo, Geoffroy Guillemot
Summary: The catalytic activity and product distribution of titanium complexes of silanol functionalized polyoxometalates in alkene oxidation are influenced by the steric environment generated by the SiloxPOM. Steric repulsions between oxidant and SiloxPOM govern the reaction pathways, with outer-sphere mechanisms becoming competitive with inner-sphere ones.
Article
Multidisciplinary Sciences
Chih-Hung Ko, Qirong Zhu, Francesco Tassinari, George Bullard, Peng Zhang, David N. Beratan, Ron Naaman, Michael J. Therien
Summary: A critical challenge in spintronics is to develop molecular wires that can efficiently generate spin-polarized currents. By using chiral binucleating ligands to induce interplanar torsional twisting in highly conjugated molecular wires, the rotational strengths in the near-infrared region are significantly enhanced. The large scalar product of electric and magnetic dipole transition moments in the low-energy absorptive manifolds of these wires enables enhanced chirality-induced spin selectivity and spin polarization. Experimental results from magnetic-conductive atomic force microscopy and spin-Hall devices demonstrate that these designs provide a pathway towards achieving high spin selectivity and large-magnitude spin currents in chiral materials.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Chemistry, Inorganic & Nuclear
Maxime Laurans, Michele Mattera, Raphael Salles, Ludivine K'Bidi, Pierre Gouzerh, Severine Renaudineau, Florence Volatron, Geoffroy Guillemot, Sebastien Blanchard, Guillaume Izzet, Albert Sole-Daura, Josep M. Poblet, Anna Proust
Summary: The mixed molybdenum/tungsten polyoxometalate hybrid has been successfully synthesized and characterized. Electrochemical analysis reveals its easier reducibility compared to the all-tungsten counterpart, accompanied by an unusual red shift in the electronic absorption spectrum during the second reduction. Various techniques, including spectroelectrochemistry, electron spin resonance, and theoretical calculations, have been employed to investigate the nature of the second reduction, confirming its Mo-centered nature with two antiferromagnetically coupled extra electrons.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Rafael Rodriguez, Cristina Naranjo, Anil Kumar, Paola Matozzo, Tapan Kumar Das, Qirong Zhu, Nicolas Vanthuyne, Rafael Gomez, Ron Naaman, Luis Sanchez, Jeanne Crassous
Summary: This study reports on the synthesis and self-assembly of 2,15- and 4,13-disubstituted carbo[6]helicenes bearing 3,4,5-tridodecylox-ybenzamide groups. The self-assembly of these helicenes is influenced by the substitution pattern in the helicene core, resulting in different supramolecular structures. The helical supramolecular structures exhibit efficient electron-spin filtering abilities when deposited on conductive surfaces.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Yutao Sang, Qirong Zhu, Xiaoqin Zhou, Yuqian Jiang, Li Zhang, Minghua Liu
Summary: This study describes the self-assembly of an achiral molecule into a macroscopic helical structure and the emergent chiral-selective spin-filtering effect. A benzene-1,3,5-tricarboxamide (BTA) motif with an aminopyridine group in each arm was found to coordinate with Ag-I and self-assemble into nanospheres. Symmetry breaking occurred upon sonication, resulting in the transformation of nanospheres into helical nanofibers with strong circular dichroism (CD) signals. The CD signals could be controlled by using the chiral assemblies as a seed. Additionally, the helical nanofibers exhibited highly selective charge transport with a spin-polarization transport of up to 45%, despite being composed exclusively of achiral building blocks.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Editorial Material
Chemistry, Inorganic & Nuclear
Emma Gallo, Anna Proust, Claudio Pettinari
Summary: Since 1893, coordination chemistry has continuously evolved and become a fundamental pillar in the field of chemical sciences, playing a crucial role in catalysis and materials. After two years of restrictions, the 44th International Conference on Coordination Chemistry (ICCC) was held in Rimini, Italy in August 2022, providing a platform for over a thousand chemists to present their research projects, some of which are summarized in this Special Collection.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Correction
Chemistry, Multidisciplinary
Cecile Huez, David Guerin, Stephane Lenfant, Florence Volatron, Michel Calame, Mickael L. Perrin, Anna Proust, Dominique Vuillaume
Summary: The paper titled "Correction for Redox-controlled conductance of polyoxometalate molecular junctions" by Cécile Huez et al. investigates the influence of redox on the conductance of polyoxometalate molecular structures and provides corrections to previous research findings.
Article
Chemistry, Multidisciplinary
Qirong Zhu, Yael Kapon, Aaron Burrows, Suryakant Mishra, Kakali Santra, Francesco Tassinari, Sidney R. Cohen, Tapan Kumar Das, Yutao Sang, Deb K. Bhowmick, Cynthia J. Burrows, Yossi Paltiel, Ron Naaman
Summary: The study investigated the position-dependent effect of oxidative damage on the interactions between DNA and oligopeptides, suggesting a possible remote search mechanism for DNA damage. The results shed new light on the mechanism of searching for DNA damage remotely.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Weixian Wang, Lise-Marie Chamoreau, Guillaume Izzet, Anna Proust, Maylis Orio, Seïbastien Blanchard
Summary: This article presents the synthesis and characterization of an organic-inorganic hybrid polyoxometalate functionalized with a short link and a tripodal N-based ligand, along with its copper complex. The copper complex can store up to three reducing equivalents under visible light irradiation. The reduction locus is determined using physicochemical measurements and DFT calculations. Moreover, this complex enables the photocatalytic generation of CF3 radicals in the presence of Togni's reagent, which has significant synthetic applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Physics, Applied
Cecile Huez, Maxime Berthe, Florence Volatron, Jean-Michel Guigner, Dalil Brouri, Lise-Marie Chamoreau, Benoit Baptiste, Anna Proust, Dominique Vuillaume
Summary: We investigated the conductive properties of tungsten suboxide nanotubes and found that they exhibit high conductivity and significant anisotropy. Most of the nanotubes exhibit metallic-like electron transport, while a few exhibit variable range hopping behavior. Additionally, we observed a semiconductor-to-metal transition at an oxygen vacancy concentration of approximately 3%.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Juba Salhi, Jan Patrick Calupitan, Michele Mattera, David Montero, Antoine Miche, Regina Maruchenko, Anna Proust, Guillaume Izzet, David Kreher, Imad Arfaoui, Florence Volatron
Summary: In this study, we demonstrate a method to periodically organize individual polyoxometalates on a surface by a new supramolecular assembly.
Article
Chemistry, Multidisciplinary
Cecile Huez, Severine Renaudineau, Florence Volatron, Anna Proust, Dominique Vuillaume
Summary: In this study, we synthesized a series of Preyssler polyoxometalates (POMs) stabilized with different counterions and investigated their electron transport properties using conductive atomic force microscopy (C-AFM). We found that the electron transport properties of P5W30-based molecular junctions depend on the nature of the counterions, with a gradual increase in low-bias current by changing the counterion. We also analyzed the energy position and electrode coupling energy of P5W30 with different counterions and discussed possible explanations for these features.
Article
Chemistry, Physical
Chih-Hung Ko, Qirong Zhu, George Bullard, Francesco Tassinari, Mitsuhiko Morisue, Ron Naaman, Michael J. Therien
Summary: The chirality-induced spin selectivity effect allows thin-film layers of chiral conjugated molecules to function as spin filters at ambient temperature. Different aggregate morphologies of nanofibers and nanodonuts can be achieved through solvent-modulated dropcasting. The nanodonut structures exhibit spin-diode behavior and show potential for CISS-based nanoscale spin current rectifiers.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Cecile Huez, David Guerin, Stephane Lenfant, Florence Volatron, Michel Calame, Mickael L. Perrin, Anna Proust, Dominique Vuillaume
Summary: In this study, the reversible in situ photoreduction of phosphomolybdate molecular junctions on gold electrodes was demonstrated, revealing stable open-shell states and symmetric current-voltage characteristics. Additionally, a fraction of the molecules were found to be already reduced, and UV light induced photoreduction showed slightly asymmetric current-voltage behaviors.
Article
Chemistry, Physical
Sebastien Hupin, Vincent Tognetti, Frederic Rosu, Severine Renaudineau, Anna Proust, Guillaume Izzet, Valerie Gabelica, Carlos Afonso, Helene Lavanant
Summary: Drift tube ion mobility spectrometry (DTIMS) coupled with mass spectrometry was used to determine the collision cross-sections (CCS-DT) of polyoxometalate anions in helium and nitrogen. The geometry of the ions was found to have a greater impact on the collision cross-section than their mass. By utilizing optimized structures and partial charges determined from density functional theory calculations, the Lennard-Jones potential parameters for the interaction between Mo and W atoms with He and N-2 were determined, accurately reproducing the CCS of polyoxometalates.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
