Article
Chemistry, Physical
Yuanmin Zhu, Ping Liao, Wandong Xing, Jiayu Liu, Jizhe Cui, Cai Jin, Lang Chen, Biao Wang, Rong Yu
Summary: This study systematically investigates the atomic structure, chemical distribution and electronic structure of RP faults in perovskite LaNiO3 using STEM and DFT calculations. The study reveals fluctuations in oxygen content and mixed valence of Ni cations at RP faults.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Chemistry, Physical
Alessandro Caiazzo, Rene A. J. Janssen
Summary: This review discusses the toolbox and methods used for high efficiency solar cells based on Ruddlesden-Popper perovskites.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Linfang Yan, Junjie Ma, Pengwei Li, Shuangquan Zang, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: This article summarizes the recent advances in carrier behavior of 2D Ruddlesden-Popper perovskite solar cells (PSCs) and provides guidelines and strategies for enhancing carrier transport.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Qian Cheng, Boxin Wang, Gaosheng Huang, Yanxun Li, Xing Li, Jieyi Chen, Shengli Yue, Kang Li, Hong Zhang, Yuan Zhang, Huiqiong Zhou
Summary: This study investigates the residual strain in a two-dimensional Ruddlesden-Popper perovskite film and finds that the spacer cations contribute to the residual strain. By strain relaxation, the film quality is improved, leading to enhanced efficiency and good stability in unstable environments.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Junsang Cho, Preethi S. Mathew, Jeffrey T. DuBose, Prashant Kamat
Summary: 2D lead halide perovskites with tunable bandgap and enhanced chemical stability are useful for designing optoelectronic devices. Reducing dimensionality can increase resistance to light-induced ion migration, but also decreases the efficiency of halide ion segregation and segregation rate constant, leading to a decrease in charge-carrier lifetime.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yingjie Su, Cai Xu, Liguo Gao, Guoying Wei, Tingli Ma
Summary: The solvent-assisted method for preparing 2D perovskite films can enhance the PCE of PSCs and demonstrate good stability in long-term storage tests. Enhanced carrier transfer mechanism has been proposed after analyzing the photophysical process of carriers in PSCs based on 2D perovskite.
CHEMICAL COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Zhen Yu Zhang, Guo Ping Wang
Summary: Time-domain study of coherent acoustic phonons in nanomaterials provides dynamic and unparalleled insight into their mechanical and structural features. The acoustic breathing mode of resonant coherent phonons (RCP) in nanoscale RP perovskite films is reported, which shows that RCP oscillation can be used as a novel and non-destructive approach for quantitatively evaluating the decomposition of moisture-exposed RP perovskite. These results reveal the decisive effect of structural geometry on acoustic performances in perovskite nanomaterials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Murali Gedda, Emre Yengel, Hendrik Faber, Fabian Paulus, Joshua A. Kress, Ming-Chun Tang, Siyuan Zhang, Christina A. Hacker, Prashant Kumar, Dipti R. Naphade, Yana Vaynzof, George Volonakis, Feliciano Giustino, Thomas D. Anthopoulos
Summary: Controlling the morphology of metal halide perovskite layers is crucial for optoelectronics manufacturing. A new strategy utilizing an organic semiconductor was proposed to promote the formation of large single-crystal domains in perovskite films, leading to transistors with unexpectedly large hysteresis windows. Material and device analysis, along with theoretical calculations, indicated a potential novel memory device concept for large-area electronics.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Physical
Han Pan, Yong Zheng, Wenqing He, Wenxing Yang, Xiu Gong, Xiaodong Liu, Qiang Wei, Yan Liu, Yan Shen, Mingkui Wang
Summary: Ruddlesden-Popper (RP) tin-based halide perovskites have attracted attention due to their low-toxicity and low-cost processability. This study proposes a method to slow down crystallization kinetics in RP tin-based perovskites by regulating intra- and intermolecular interactions. By introducing an electron-rich heterocyclic thiophene into bulky spacers, the intermolecular interaction is decreased and intramolecular interactions are increased, leading to the stabilization of colloids and orderly crystal growth. The perovskite solar cell using this method demonstrates a two-fold improvement in power conversion efficiency compared to the control sample.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Energy & Fuels
Jiawen Li, Zijun Wang, Genjie Yang, Junsheng Yu
Summary: This study investigates the impact of different halide anions on the optoelectronic properties of RP perovskite films, with PEACl showing a higher proportion of vertical crystal orientation and fewer trap-states. Devices based on PEACl achieve a champion PCE of 12.02%, surpassing those based on PEAI and PEABr.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Chemistry, Multidisciplinary
Xinwei Zhao, Ting Zheng, Weiwei Zhao, Yuanfang Yu, Wenhui Wang, Zhenhua Ni
Summary: By varying the composition ratio of organic bulky spacer cations 1-naphthylmethylamine (NMA) and phenylethyl-ammonium (PEA), the phase distribution of Ruddlesden-Popper Perovskite (RPP) is regulated, resulting in improved photoluminescence (PL) emission and expanded application in optical devices.
Review
Chemistry, Multidisciplinary
Pengyun Liu, Ning Han, Wei Wang, Ran Ran, Wei Zhou, Zongping Shao
Summary: Perovskite solar cells have witnessed rapid development in the past decade, with particular attention on low-dimensional Ruddlesden-Popper (RP) perovskite-based cells due to their stability. While RP perovskite-based cells are more stable, their efficiency still lags behind 3D counterparts, highlighting the importance of improving the quality of RP perovskite films through innovative film formation processes.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Yongxu Yan, Zhexin Li, Linlin Li, Zheng Lou
Summary: Stereopsis is important for human perception and interaction with the world. However, current imaging sensors are mostly focused on 2D imaging, limiting their practical applications. This study demonstrates a flexible 3D visual imaging system based on 2D Ruddlesden-Popper perovskite, which shows excellent performance in photoresponse, mechanical characteristics, and environmental stability. The system can detect depth of field and reconstruct the spatial structure of objects to invert 3D images. It has broad application prospects in medical imaging, virtual reality, industrial automation, and other fields.
Article
Chemistry, Multidisciplinary
Qiang Fu, Mingqian Chen, Qiaohui Li, Hang Liu, Rui Wang, Yongsheng Liu
Summary: By using a selenophene-based spacer, researchers have successfully developed stable and efficient 2D RP perovskite solar cells. They achieved efficient electron extraction and transport by optimizing the perovskite film and using a transport layer. The study shows that the selenophene-based spacer significantly improves the conversion efficiency and stability of 2D RP perovskite solar cells.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Liang Wang, Luying Li, Shuangfeng Jia, Weiwei Meng, Yongfa Cheng, Zunyu Liu, Li Li, Shuwen Yan, Yihua Gao, Jianbo Wang, Jiang Tang
Summary: In this study, it is found that RP faults are common planar faults in CsPbBr3-based perovskite polycrystal thin films, and their density can be increased by non-stoichiometric composition and reduced dimensionality strategies. Photoluminescence measurement shows increasing peak intensities with higher densities of RP planar faults. Atomic-scale differential phase contrast maps indicate confined charges within the RP planar fault network, explaining the relationship between photoluminescence enhancement and RP planar fault density, and offering a pathway for tailoring the optoelectronic properties of perovskite.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Margaret P. Cosgriff, Pice Chen, Sung Su Lee, Hyeon Jun Lee, Lukasz Kuna, Krishna C. Pitike, Lydie Louis, William D. Parker, Hiroo Tajiri, Serge M. Nakhmanson, Ji Young Jo, Zuhuang Chen, Lang Chen, Paul G. Evans
ADVANCED ELECTRONIC MATERIALS
(2016)
Article
Physics, Multidisciplinary
Ayana Ghosh, Towfiq Ahmed, Dzmitry A. Yarotski, Serge M. Nakhmanson, Jian-Xin Zhu
Article
Materials Science, Coatings & Films
Siliang Chang, Sathees Kannan Selvaraj, Yoon-Young Choi, Seungbum Hong, Serge M. Nakhmanson, Christos G. Takoudis
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2016)
Review
Physics, Multidisciplinary
Seungbum Hong, Serge M. Nakhmanson, Dillon D. Fong
REPORTS ON PROGRESS IN PHYSICS
(2016)
Article
Chemistry, Physical
John Mangeri, Krishna C. Pitike, S. Pamir Alpay, Serge Nakhmanson
NPJ COMPUTATIONAL MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
John Mangeri, Yomery Espinal, Andrea Jokisaari, S. Pamir Alpay, Serge Nakhmanson, Olle Heinonen
Article
Chemistry, Physical
Ayana Ghosh, Lydie Louis, Alexandru D. Asandei, Serge Nakhmanson
Article
Materials Science, Multidisciplinary
Lydie Louis, Krishna Chaitanya Pitike, Ayana Ghosh, Shashi Poddar, Stephen Ducharme, Serge M. Nakhmanson
JOURNAL OF MATERIALS CHEMISTRY C
(2018)
Article
Physics, Applied
John Mangeri, S. Pamir Alpay, Serge Nakhmanson, Olle G. Heinonen
APPLIED PHYSICS LETTERS
(2018)
Article
Physics, Applied
Krishna Chaitanya Pitike, John Mangeri, Hope Whitelock, Tulsi Patel, Pamela Dyer, S. Pamir Alpay, Serge Nakhmanson
JOURNAL OF APPLIED PHYSICS
(2018)
Article
Chemistry, Multidisciplinary
Joonkyu Park, John Mangeri, Qingteng Zhang, M. Humed Yusuf, Anastasios Pateras, Matthew Dawber, Martin V. Holt, Olle G. Heinonen, Serge Nakhmanson, Paul G. Evans
Article
Multidisciplinary Sciences
Simuck F. Yuk, Krishna Chaitanya Pitike, Serge M. Nakhmanson, Markus Eisenbach, Ying Wai Li, Valentino R. Cooper
SCIENTIFIC REPORTS
(2017)
Article
Chemistry, Multidisciplinary
Ayana Ghosh, Lydie Louis, Kapildev K. Arora, Bruno C. Hancock, Joseph F. Krzyzaniak, Paul Meenan, Serge Nakhmanson, Geoffrey P. F. Wood
Article
Nanoscience & Nanotechnology
Tianqi Wang, Krishna Chaitanya Pitike, Yakun Yuan, Serge M. Nakhmanson, Venkatraman Gopalan, Bharat Jalan
Article
Materials Science, Multidisciplinary
Radhe Agarwal, Yogesh Sharma, Siliang Chang, Krishna C. Pitike, Changhee Sohn, Serge M. Nakhmanson, Christos G. Takoudis, Ho Nyung Lee, Rachel Tonelli, Jonathan Gardner, James F. Scott, Ram S. Katiyar, Seungbum Hong
