Results 191 to 200 of about 8,802 (281)

DFT Insight Into Physical Properties of Halide Ions Replacements in Oxo‐Selenate Halide Compounds for Photovoltaic Application

Energy Science &Engineering, EarlyView.
Using density functional theory (CASTEP, GGA–PBE), the structural, electronic, optical, and mechanical properties of YSeO₃X (X = F, Cl, Br, and I) compounds are systematically investigated. The materials have exhibited structural stability, tunable band gaps, strong optical absorption, anisotropic ductile behavior, and promising potential for ...
Nawishta Jabeen, Ahmad Hussain, Ali Yaqoob, Omer Musa, Aseel Smerat, Joy Djuansjah   +5 more
wiley   +1 more source

Bridging first-principles calculations and device simulations of A₃GaI₆ (A = K, Rb, Cs) double perovskites for next-generation solar cells: DFT, AIMD, and SCAPS-1D. [PDF]

RSC Adv
Jehangir MA, Rabhi S, Makhloufi R, Shimul AI, Khan AN, Bouderbala YI, Alsalmi OH, Sadaf S, Alam MW.   +8 more
europepmc   +1 more source

Multifunctional ionic liquid boosts the efficiency of hole transport layer‐free carbon‐based perovskite solar cells beyond 20%

FlexMat, EarlyView.
HTL‐free carbon‐based PSCs are promising in stability but limited by efficiency. Systematic screening identifies DMAFo as an optimized ionic‐liquid additive: the DMA+ regulates lattice distortion and relieves residual stress, while Fo‒ passivates halide vacancies, and ameliorates band‐alignment.
Zhiyang Ju, Wenyan Zhao, Jionghua Wu, Hongshi Li, Yumin Liu, Wenying Jiang, Tiankai Zhang, Chuanjin Tian, Shaojian Fu, Chang‐an Wang, Zhipeng Xie   +10 more
wiley   +1 more source

Low‐threshold FAPbBr3 lasers based on a dual‐additive strategy

FlexMat, EarlyView.
This study developes a dual‐additive strategy to fabricate high‐quality FAPbBr3 perovskite films, exhibiting a low surface RMS roughness of 1.36 nm and a high photoluminescence quantum efficiency of 63.6%. Based on the superior film, lasing with a record‐low threshold of 15.5 μJ/cm2 for FAPbBr3 under nanosecond‐pulsed pumping at room temperature are ...
Jingya Lai, Xinyu Huang, Yujing Wang, Chengcheng Wang, Jinfeng Yu, Runqin Lu, Zhiyuan Kuang, Kang Tian, Chao Ma, Wei Huang, Jianpu Wang, Qiming Peng   +11 more
wiley   +1 more source

Exploring the Polaron Landscape in Germanium Halide Perovskites: CsGeCl₃, CsGeBr₃, and CsGeI₃. [PDF]

J Phys Chem Lett
Baskurt M, Wiktor J.
europepmc   +1 more source

Perovskite lasers: From optical pumping to electrical pumping

FlexMat, EarlyView.
This review highlights recent progress in perovskite lasers, emphasizing material engineering, cavity design, and lasing mechanisms in halide perovskites. It also discusses advances in continuous‐wave operation and evaluates the prospects for electrically pumped devices, while identifying key challenges that must be addressed to fully realize the ...
Kang Wang, Maria Vasilopoulou, Thamraa Alshahrani, Ilhwan Ryu, Muhammad Fazri bin Jasmin, Muhammad Danish Danial bin Zulkifli, Aliff Muhaimin bin Kamaruzaman, Muhammad Nafie bin Jakariah, Peng Gao, Abd Rashid bin Mohd Yusoff, Yong Sheng Zhao   +10 more
wiley   +1 more source

High-Entropy Double Perovskites with Tailored Multichannel Luminescence. [PDF]

J Am Chem Soc
Xue J, Luo J, Chang KT, Sun Z, Zhu Z, Mao L, Lu H.   +6 more
europepmc   +1 more source

Patternable Stimuli‐Responsive Perovskite Fiber Membranes for Underwater Anti‐Counterfeiting and Information Encryption

Interdisciplinary Materials, EarlyView.
Dual‐ligand‐modified perovskite fiber membranes achieve reversible, water‐triggered fluorescence switching with high environmental stability, enabling dynamic optical encryption and anti‐counterfeiting in moisture‐rich or water environments. ABSTRACT All‐inorganic lead halide perovskites are favored for next‐generation optoelectronic devices due to ...
Huanyu Chen, Ying Tan, Zhirou Chen, Guo Yang, Tian Tian, Jiehao Du, Shaojin Gu, Fuzhi Huang, Wu‐Qiang Wu   +8 more
wiley   +1 more source

In situ TEM unveils the role of residual local strain on light-induced phase segregation in halide perovskites. [PDF]

Sci Adv
Li Z, Aihemaiti N, Xu C, Zhu Y, Peng S.
europepmc   +1 more source

Trace MA+ Accelerates the Degradation of Perovskite Solar Cells at Elevated Temperatures

Information &Functional Materials, EarlyView.
We investigate how the A‐site cation influences the morphology and optoelectronic properties of perovskite films, and consequently, the operational stability of devices under continuous light illumination at elevated temperature. ABSTRACT Methylammonium (MA+) is the most widely adopted A‐site cation for high‐efficiency perovskite solar cells.
Jiazheng Zhou, Hongsen Cui, Kaifeng Jing, Hengyu Zhang, Zhicheng Guan, Yingjie Hu, Lian Wang, Peng Tao, Zhenyi Ni, Guojia Fang, Gang Li, Guang Yang   +11 more
wiley   +1 more source