Article
Chemistry, Multidisciplinary
Guangbiao Xiang, Yanwen Wu, Yushuang Li, Chen Cheng, Jiancai Leng, Hong Ma
Summary: Two types of Ruddlesden-Popper hybrid perovskites were designed and studied for their band structures and band gaps as the number of layers increased. The bandgap energies decreased as the layers increased, and the optical absorption was blue-shifted with a change in structure from bulk to nanolayer, showing sensitivity to the layers along the z direction and anisotropy induced by the SnBr2-terminated surface, respectively.
Article
Chemistry, Physical
Zhoushilin Ruan, Shenlong Jiang, Qun Zhang, Yi Luo
Summary: This study presents a systematic demonstration of phononic fine-tuning in a two-dimensional lead-halide perovskite system through fluorination. The effects of fluorination on the structural distortion-induced phononic properties are investigated using ultrafast spectroscopy and temperature-dependent photoluminescence spectroscopy. The results reveal the subtle but profound impacts of fluorination on coherent phonon modes, phonon-phonon/electron-phonon interactions, and the hot-phonon bottleneck effect.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Franziska Muckel, Kathryn N. Guye, Shaun M. Gallagher, Yun Liu, David S. Ginger
Summary: The research demonstrates the hybrid exciton-photon Fano resonance in two-dimensional Ruddleson-Popper perovskite films, explaining the mechanism behind this phenomenon through different models and simulation methods. The possibility of tuning Fano resonance by combining different structures is explored.
Article
Engineering, Electrical & Electronic
Jun Zhao, Zhiqin Zheng, Wenli Liu, Xufang Tang, Dingfeng Jin, Xinxing Wang
Summary: This study prepared two-dimensional hybrid perovskite quantum dots with emission bands in the UV and blue regions, showing strong quantum confinement. Nonlinear optical scattering and absorption properties were observed in the 2D CPI QDs, demonstrating a high two-photon absorption coefficient. These findings reveal the potential of 2D CPI QDs in high optical limiting applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Jacob T. Lee, Soenke Seifert, Rajesh Sardar
Summary: The synthesis of Bi-based 2D perovskite nanosheets through colloidal methods has been successfully achieved in this study, showing unique optoelectronic properties and potential applications. These nanosheets can form superlattice microstructures, demonstrating potential for optoelectronic applications.
CHEMISTRY OF MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Nikita I. Selivanov, Anna Yu. Samsonova, Ruslan Kevorkyants, Irina V. Krauklis, Yuri V. Chizhov, Boris V. Stroganov, Marios E. Triantafyllou-Rundell, Detlef W. Bahnemann, Constantinos C. Stoumpos, Alexei V. Emeline, Yury V. Kapitonov
Summary: The study introduces a new family of hybrid organic-inorganic 2D lead halides, reporting the first example of the hybrid organic-inorganic post-perovskite 3-cyanopyridinium lead tribromide (3cp)PbBr3. The new material exhibits unique structural connectivity and optical properties that show significant anisotropy within the inorganic layer plane.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Katarzyna Posmyk, Natalia Zawadzka, Mateusz Dyksik, Alessandro Surrente, Duncan K. Maude, Tomasz Kazimierczuk, Adam Babinski, Maciej R. Molas, Watcharaphol Paritmongkol, Miroslaw Maczka, William A. Tisdale, Paulina Plochocka, Michal Baranowski
Summary: This study reveals the exciton fine structure of (PEA)2PbI4 single crystals using low temperature magneto-optical spectroscopy and provides valuable quantification of the fine structure splitting in (PEA)2PbI4. The results support the standard multiband, effective-mass theories for the exciton fine structure in 2D perovskites.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Peirong Liu, Yingrui Xiao, Zhou Yang, Shouwu Yu, Xianguang Meng
Summary: Lead-free double perovskite is a candidate material for green optoelectronic applications due to its low toxicity and human-friendly characteristics. By introducing propylammonium, a larger size 2D double perovskite single crystal (PA)4AgBiBr8 has been grown, which exhibits good X-ray response. The constructed Au/(PA)4AgBiBr8/Au X-ray detector shows high sensitivity.
Article
Chemistry, Physical
Qiaoyan Hao, Peng Li, Jidong Liu, Jiarui Huang, Wenjing Zhang
Summary: In recent years, significant progress has been made in exploring high-mobility two-dimensional (2D) semiconductors and their applications in optoelectronic devices. The unique crystalline and electronic structures of materials like InSe and PdSe2 make them competitive candidates for next-generation optoelectronic devices. The ability to efficiently modify the optical and electronic properties of 2D materials through bandgap engineering is critical for their specific applications. This review focuses on the progress in bandgap engineering of high-mobility 2D semiconductors and their potential in future optoelectronic applications.
JOURNAL OF MATERIOMICS
(2023)
Article
Chemistry, Physical
Andreas T. Rosch, Robby Reynaerts, Brigitte A. G. Lamers, Kunal S. Mali, Steven De Feyter, Anja R. A. Palmans, E. W. Meijer
Summary: The study presents a novel class of alkylated NDIs for the precise functionalization of HOPG with double lamellar morphologies, showing the unexpected disturbance of odd-even effect in the self-assembled monolayers. The results suggest that increasing the length of the alkyl spacer enhances the conformational freedom of molecules while maintaining a double lamellar morphology.
CHEMISTRY OF MATERIALS
(2021)
Review
Engineering, Electrical & Electronic
Yu-Tao Li, Lei Han, Hang Liu, Kuan Sun, Di Luo, Xiao-Liang Guo, Du-Li Yu, Tian-Ling Ren
Summary: This review introduces the structure and properties of organic-inorganic 2D perovskite materials and describes the recent progress in various optoelectronic devices based on these materials. The influence of structure, manufacturing process, and material selection on device performance is analyzed, and possible breakthrough development directions for 2D perovskite-based optoelectronic devices in the coming years are proposed.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ziyi Wang, Xu Chen, Yipeng Song, Zhipeng Du, Yang Zhou, Minjuan Li, Weiqi Huang, Qianting Xu, Yanqiang Li, Sangen Zhao, Junhua Luo
Summary: This work reports the observation of heat switching birefringence in a 2D layered hybrid halide perovskite crystal. Structure analyses reveal the impact of heat-induced structure transition on birefringence. This discovery may contribute to the development of stimuli-responsive polarization optical devices.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Ceng Han, Alasdair J. Bradford, Jason A. McNulty, Weiguo Zhang, P. Shiv Halasyamani, Alexandra M. Z. Slawin, Finlay D. Morrison, Stephen L. Lee, Philip Lightfoot
Summary: This study reports the influence of positional isomerism on the crystal structures of copper halide perovskites. Two polar ferromagnetic compounds with significant crystal structure differences and enhanced physical properties are successfully synthesized. This finding inspires the design of high-performance multifunctional copper-based materials.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Haizhen Wang, Jiaqi Ma, Dehui Li
Summary: Two-dimensional (2D) hybrid perovskites have attracted attention in optoelectronic fields due to their unique properties, which can be further enhanced through integration with other layered materials, leading to high-performance optoelectronic devices. This Perspective introduces the properties of 2D perovskites, discusses various heterostructures, and proposes future research directions.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Review
Chemistry, Multidisciplinary
T. Marimuthu, R. Yuvakkumar, P. Senthil Kumar, Dai-Viet N. Vo, Xueqing Xu, Gang Xu
Summary: This article discusses the fabrication methods of two-dimensional perovskite solar cells that can improve stability, and points out several ways to improve power conversion efficiency.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Valentin I. E. Queloz, Marine E. F. Bouduban, Ines Garcia-Benito, Alexander Fedorovskiy, Simonetta Orlandi, Marco Cavazzini, Gianluca Pozzi, Harsh Trivedi, Doru C. Lupascu, David Beljonne, Jaques-E Moser, Mohammad Khaja Nazeeruddin, Claudio Quarti, Giulia Grancini
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Physical
Guangjun Nan, David Beljonne, Xu Zhang, Claudio Quarti
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2020)
Article
Chemistry, Physical
Antonios M. Alvertis, Raj Pandya, Claudio Quarti, Laurent Legrand, Thierry Barisien, Bartomeu Monserrat, Andrew J. Musser, Akshay Rao, Alex W. Chin, David Beljonne
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Materials Science, Multidisciplinary
Valentin Diez-Cabanes, Jacky Even, David Beljonne, Claudio Quarti
Summary: Halide mixing plays a key role in tuning the emission wavelength and improving the performance of lead halide perovskites solar cells. Research shows that halide impurities do not act as trap states in low doping regime, and the bandgap opens quasi-linearly with increasing bromine content. Phase segregation at the nanoscale significantly affects the electronic structure of mixed halide systems.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Physical
Nadege Marchal, Edoardo Mosconi, Gonzalo Garcia-Espejo, Tahani M. Almutairi, Claudio Quarti, David Beljonne, Filippo De Angelis
Summary: This study investigates the use of cation engineering to improve the optoelectronic properties of 2D perovskites, showing that electronically active A-site cations can enhance charge transport. Tuning the hybridization of electronic states can lead to a variety of optoelectronic properties, with implications for stable and efficient solar cell devices.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Claudio Quarti, Eric Furet, Claudine Katan
Summary: Solid state NMR spectroscopy is being used to characterize lead halide perovskites, with the help of Density Functional Theory to support the NMR characterization, especially for light nuclei. Accurate prediction of NMR responses for heavier nuclei like Pb-207 is more challenging, but there have been successful efforts to study mixed halide perovskite compounds for applications in solar cells and light emission.
HELVETICA CHIMICA ACTA
(2021)
Article
Chemistry, Physical
Maroua Ben Haj Salah, Nicolas Mercier, Magali Allain, Antonin Leblanc, Jens Dittmer, Chiara Botta, Claudio Quarti, Claudine Katan
Summary: Metal-halide perovskites, particularly the layered subfamily, have shown great potential for optoelectronic applications. In this study, a <1 1 0>-oriented (FA)(3)(HEA)(2)Pb3I11 perovskite was successfully synthesized and characterized. The perovskite exhibited a broad absorption band in the visible region and a direct band gap, suggesting its potential for photovoltaic applications.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Joshua A. Kress, Claudio Quarti, Qingzhi An, Sapir Bitton, Nir Tessler, David Beljonne, Yana Vaynzof
Summary: The mixed ionic-electronic nature of lead halide perovskites makes their performance in solar cells complex in nature. However, this study demonstrates that ion trapping at the perovskite/electron transport layer interface can have a positive impact on device performance of perovskite solar cells, despite the presence of high-density ionic defects.
ACS ENERGY LETTERS
(2022)
Article
Physics, Multidisciplinary
Hao Zhang, Wenbin Li, Joseph Essman, Claudio Quarti, Isaac Metcalf, Wei-Yi Chiang, Siraj Sidhik, Jin Hou, Austin Fehr, Andrew Attar, Ming-Fu Lin, Alexander Britz, Xiaozhe Shen, Stephan Link, Xijie Wang, Uwe Bergmann, Mercouri G. G. Kanatzidis, Claudine Katan, Jacky Even, Jean-Christophe Blancon, Aditya D. D. Mohite
Summary: This article provides a direct visualization of the structural dynamics in monocrystalline 2D perovskites by monitoring the evolution of wavevector-resolved ultrafast electron diffraction intensity. The results show a light-induced ultrafast reduction in antiferro-distortion due to the strong interaction between the electron-hole plasma and perovskite lattice. Correlated ultrafast spectroscopy reveals that the relaxation of lattice distortion is triggered by the creation of a dense electron-hole plasma. The interaction between carrier gas and lattice can be altered by choosing an appropriate organic spacer layer.
Article
Chemistry, Physical
Alla Skorokhod, Claudio Quarti, Alexandre Abherve, Magali Allain, Jacky Even, Claudine Katan, Nicolas Mercier
Summary: In this study, a series of new compounds with ABX3 structure were synthesized and characterized. The successful formation of multilayer compounds was achieved by incorporating halide spacers between the organic and inorganic components. These compounds show potential for applications in photovoltaic devices, as their optical absorption onset is around 1.71 eV, suitable for 2D/3D photovoltaic architectures.
CHEMISTRY OF MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Claudio Quarti, Giacomo Giorgi, Claudine Katan, Jacky Even, Maurizia Palummo
Summary: Layered halide perovskites are natural heterostructures with quantum and dielectric confinement that strongly affect their optical properties by stabilizing bound excitons. This study uses ab initio solution of the Bethe-Salpeter equation (BSE) to investigate the exciton properties of Cs2PbX4 (X = I and Br) models and provides theoretical insights to resolve conflicting literature reports. The simulations predict the fine-structure assignment of E-dark Ein-plane Eout-of-plane, consistent with recent magneto-absorption experiments, and observe a similar increase in dark/bright splitting from lead-iodide to lead-bromide composition as found experimentally. The authors also discuss the influence of polar distortions on exciton stabilization and the potential of halide perovskites as triplet sensitizers in combination with organic dyes.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Lamiaa Fijahi, Tommaso Salzillo, Adrian Tamayo, Marco Bardini, Christian Ruzie, Claudio Quarti, David Beljonne, Simone d'Agostino, Yves H. Geerts, Marta Mas-Torrent
Summary: We report on the synthesis and structural characterization of novel charge transfer complexes between a benzothienobenzothiophene derivative and F(x)TCNQ derivatives. The degree of charge transfer and HOMO-LUMO gap energies were evaluated using spectroscopic methods and DFT calculations. Thin films of the complexes were prepared and their structures were identified using X-ray diffraction and IR/Raman spectroscopy. The films exhibited n-type behavior in organic field-effect transistor devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Martina Pantaler, Valentin Diez-Cabanes, Valentin I. E. Queloz, Albertus Sutanto, Pascal Alexander Schouwink, Mariachiara Pastore, Ines Garcia-Benito, Mohammad Khaja Nazeeruddin, David Beljonne, Doru C. Lupascu, Claudio Quarti, Giulia Grancini
Summary: Lead-free perovskites with lower dimensionality, such as (PEA)4AgBiBr8 and (PEA)2CsAgBiBr7, exhibit strong excitonic effects and a large Stokes shift, attributed to the soft character of the double-perovskite lattices. These findings have implications for the use of double perovskites in light-emitting applications, highlighting their potential in advanced optoelectronic devices.
Article
Chemistry, Multidisciplinary
Ferdinand Ledee, Pierre Audebert, Gaelle Trippe-Allard, Laurent Galmiche, Damien Garrot, Jerome Marrot, Jean-Sebastien Lauret, Emmanuelle Deleporte, Claudine Katan, Jacky Even, Claudio Quarti
Summary: In this study, two novel two-dimensional hybrid organic-inorganic halide perovskites were synthesized for the first time, incorporating 100% of a photoactive tetrazine derivative as the organic component. The unique electronic structure of the organic component, with the lowest energy optical absorption in the blue region, provides a platform for investigating charge and energy transfer mechanisms. The study demonstrates partial energy transfer and rationalizes suppressed emission from the perovskite frame, suggesting the potential for optimizing the organic moiety for specific applications.
MATERIALS HORIZONS
(2021)
Article
Nanoscience & Nanotechnology
Jaume Llacer, David Moerman, Olivier Douheret, Xavier Noirfalise, Claudio Quarti, Roberto Lazzaroni, Didier Theron, Philippe Leclere
ACS APPLIED NANO MATERIALS
(2020)