Results 131 to 140 of about 18,048 (289)

Benzobis(thiadiazole)-based small molecules as efficient electron transporting materials in perovskite solar cells

, 2019
Benzobis(thiadiazole)-based small molecules as efficient electron transporting materials in perovskite solar ...
Wan, Li, He, Ying, Li, Xiaodong, Song, Changjian, Zhang, Wenjun   +4 more
core   +1 more source

In Situ Pseudo‐Halide Diffusion Enables Buried Interface Regulation and Crystallinity Enhancement in Perovskite Solar Cells

Advanced Science, EarlyView.
Thermally activated LiHCOO induces in situ pseudo‐halide diffusion, promoting buried interface strain release and perovskite crystallization. The monoclinic LiHCOO phase forms an open framework structure that enhances HCOO− diffusion and drives interfacial restructuring.
Chao Gao, Li He, Changjiang Li, Long Fang, Wenzhong Shen   +4 more
wiley   +1 more source

Pressure‐Driven Phase Transition Unlocking Unique Eu2+ Luminescence in Li2SrSiO4 for Optical Sensing and White‐LEDs

Advanced Science, EarlyView.
This study demonstrates, for the first time, the use of a large‐format high‐pressure press to modify synthesized Li2SrSiO4:Eu2+,Cs+ phosphors after its preparation. The pressure treatment results in the formation of new materials with distinctive optical properties, opening pathways for the development of advanced LED devices and high‐performance ...
Przemysław Woźny, Peng Du, Teng Zheng, Junpeng Xue, Liang Peng, Shuailing Ma, Szymon Sobczak, Victor Lavín, Tian Cui, Marcin Runowski   +9 more
wiley   +1 more source

AI-driven perovskite solar cells optimization

Perovskite solar cells (PSCs) are renowned for their efficiency, affordability, and mass manufacturing. However, the performance unpredictability, material sensitivity and stability issues, and optimization limit their practicality.
Ijaz, Sumbel, Ahmed, Ghufran, Mehmood, Muhammad Qasim, Khan, Muhammad Faisal, Faizan, Muhammad, Zubair, Muhammad   +5 more
core   +1 more source

Machine Learning Accelerated Non‐Adiabatic Molecular Dynamics Elucidates Local Polarization Effects on Non‐radiative Recombination in Halide Perovskites

Advanced Science, EarlyView.
This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang, Xiaoli Wei, Bo Cai, Yan Yang, Xinghai Zhu, Yi Liu, Junmin Xia, Lihui Liu, Kun Cao, Wei Shen, Pengfei Xia, Shufen Chen, Siyu Chen, Jin Zhao   +13 more
wiley   +1 more source

Ultrafast Hot‐Carrier Cooling in CsPbBr3 Supercrystals via Long‐Range Electronic Coupling

Advanced Science, EarlyView.
CsPbBr3 supercrystal self‐assembly, which induces long‐range electronic coupling, enables spatial carrier delocalization that accelerates carrier‐LO phonon scattering and weakens the Auger heating. These effects enable ultrafast, excitation‐intensity‐independent hot‐carrier cooling, offering a trade‐off‐free strategy for high‐performance perovskite ...
Junhong Yu, Manoj Sharma, Yadong Han, Ke Wang, Zhenzhong Lian, Chang Cao, Lan Nguyen, Naufan Nurrosyid, Baiquan Liu, Jacek J. Jasieniak   +9 more
wiley   +1 more source

An optical study on the enhanced light trapping performance of the perovskite solar cell using nanocone structure

Scientific Reports
Photon management strategies are crucial to improve the efficiency of perovskite thin film (PTF) solar cell. In this work, a nano-cone (NC) based 2D photonic nanostructure is designed and simulated aiming at achieve superior light trapping performance by
Xiaowei Gu, Zeyu Li, Rusli E, Xiaoxiao Xu, Zhi Tao, Jiangyong Pan, Xuechao Yu, Linwei Yu, Sudha Mokkapati   +8 more
doaj   +1 more source

Two-terminal tandem solar cells based on perovskite and transition metal dichalcogenides

Results in Optics
Perovskite solar cells have shown power conversion efficiencies (PCE) comparable to crystalline silicon solar cell despite involving low-temperature, solution based synthesis processes outside clean room environment.
Harishankar Suman, Avijit Kumar
doaj   +1 more source

Modeling and Analysis of KSnI3 Perovskite Solar Cells Yielding Power Conversion Efficiency of 30.21%

KSnI3-based perovskite solar cells have attracted a lot of research interest due their unique electronic, optical, and thermal properties. In this study, we optimized the performance of various lead-free perovskite solar cell structures&mdash ...
Bonginkosi Vincent Kheswa, Hmoud Al-Dmour, Nolufefe Muriel Ndzane, Lucky Makhathini, Siyabonga Ntokozo Thandoluhle Majola   +4 more
core   +1 more source

Colossal Photovoltaic Current in Ferroelectric Oxide by Constructing Defect Band

Advanced Science, EarlyView.
Colossal photovoltaic current density of 34.36 mA/cm2 under 375 nm illumination has been achieved in the Pb‐deficient PbTiO3 film. The ultraviolet photoresponsivity surpasses that of all reported ferroelectric materials. This enhancement is attributed to the junction effect between the Pb‐deficient and non‐defective layers.
Yiran Sun, Zhenbang Dai, Xingzhong Cao, Peng Zhang, Chen Lin, Zihang Huang, Ruian Zhang, Yi Fu, Xuanyu Jiang, He Tian, Jingjing Xue, Kaifeng Wu, Junhui Wang, Tianqi Deng, Andrew M. Rappe, Gaorong Han, Zhaohui Ren   +16 more
wiley   +1 more source