Results 171 to 180 of about 8,791 (262)

Investigating the optoelectronic properties and photovoltaic performance of Na₂AuGaBr₆ based double perovskite solar cells via numerical simulation and AI techniques. [PDF]

Sci Rep
Biswas BC, Shimul AI, Paul I, AlFaify S, Benghanem M, Rahman MA, Solre GFB, Elboughdiri N.   +7 more
europepmc   +1 more source

Wake‐Up and Fatigue under Electrical Cycling in HfO2‐Based Ferroelectrics: Mechanisms and Strategies toward Reliable Devices

Advanced Science, EarlyView.
HfO2‐based ferroelectrics exhibit wake‐up and fatigue behaviors during electrical cycling, significantly affecting device endurance and reliability. These phenomena are governed by defect dynamics, including oxygen vacancy redistribution and charge trapping.
Hongseok Kim, Shinhyeong Lee, Hyojun Choi, Minseung Park, Hyunah Cho, Min Hyuk Park, Yunseok Kim   +6 more
wiley   +1 more source

Polymorphism of Sr₂ZnIrO₆ Double Perovskite at High Pressure and Temperature. [PDF]

Inorg Chem
Monteseguro V, Kayser P, Candela MT, Gallego-Parra S, Popescu C, Sans JÁ, Alonso JA, Ruiz-Fuertes J.   +7 more
europepmc   +1 more source

Ferroelectric Catalysts in the Hydrogen Evolution Reaction: A Perspective

Advanced Science, EarlyView.
This perspective summarizes recent advances in ferroelectric (FE) catalysts for the hydrogen evolution reaction (HER). It first introduces HER fundamentals and FE mechanisms, then classifies FE catalysts into single‐phase, single‐atom‐modified, heterostructured, and other engineered types, with representative examples.
Rongxuan Lu, Weizhen Meng, Zhenxiang Cheng, Judy N. Hart, Michael Ferry, Sean Li, Wenxian Li   +6 more
wiley   +1 more source

Atomistic Insights into Halide Double Perovskite Nanocrystals obtained by Multistep Synthesis and Efficient Compositional Engineering. [PDF]

ACS Nano
Dengo N, Macias-Pinilla DF, Anzini P, Colombo M, Virga S, Brambilla A, Zecca PA, Monticelli D, Giannici F, Bertolotti F.   +9 more
europepmc   +1 more source

Green and Scalable Synthesis of Efficient and Stable CsPbBr3 Perovskite Quantum Dots Enables Low‐Threshold Amplified Spontaneous Emission

Advanced Science, EarlyView.
Green and scalable synthesis of CsPbBr3 perovskite quantum dots using bio‐sourced lecithin and hexane enables single‐batch production over 10 grams. Suppressed Auger recombination and electron‐phonon coupling yields 95% PLQY, enhanced stability, and low ASE thresholds of 230.4 (ns) and 50.1 (fs) µJ cm−2 in neat films. ABSTRACT Halide perovskite quantum
Yongfeng Liu, Mengting Zhang, Qingyu Xie, Kehao Hu, Bowen Zhang, Zhe Zhang, Jie Yang, Zhiping Hu, Juan Du, Jia Wang, Min Zhou   +10 more
wiley   +1 more source

Giant switchable ferroelectric photovoltage in double-perovskite epitaxial films through chemical negative strain. [PDF]

Sci Adv
Tu J, Li H, Liu X, Xi G, Liu X, Zhang M, Wu R, Du S, Lu D, Shi L, Xia J, Fang YW, Ding J, Liu Y, Jia Y, Yuan M, Yang R, Li X, Meng X, Tian J, Zhang L, Xing X.   +21 more
europepmc   +1 more source

Unraveling Hierarchical B‐Site Ordering: Mechanism of Microwave Dielectric Enhancement in Complex Perovskite Oxide Ceramics

Advanced Science, EarlyView.
This study maps out the hierarchical ordering in 1:2 B‐site complex perovskite ceramics using a comprehensive multiscale characterization route. It turns out that intradomain strain, oxygen vacancies, and Mg disorder within the ordered domains act as strong phonon scatterers.
Qingqiao Fu, Hui Gu, Hanbin Gao, Pianpian Ma, Xiangming Chen, Juanjuan Xing, Qiang Zheng   +6 more
wiley   +1 more source

Stability and hydrogen storage performance of Na₂LiXH₆ (X = Zr, V, Cr) double perovskite hydrides <i>via</i> DFT and AIMD. [PDF]

RSC Adv
Kaleem M, Asif Iqbal MM, Khan AN.
europepmc   +1 more source

Phonon‐Driven Tetrahedral Tilts Enable Ultralow Bulk Thermal Expansion and Interstitial Oxide‐Ion Migration in Phenacite Solid Electrolytes

Advanced Science, EarlyView.
This work demonstrates a design paradigm of phonon‐driven negative‐thermal‐expansion (NTE) flexible framework that exploits the intrinsic lattice flexibility of NTE frameworks to simultaneously suppress thermal expansion and activate oxide‐ion conduction, offering a promising strategy to mitigate TEC mismatch in solid‐state ionic devices.
Xiaohui Li, Lu liang, Qilong Shi, Xiaoge Wang, Cheng Li, Sihao Deng, Lunhua He, Qiang Li, Kun Lin, Xianran Xing, Xiaojun Kuang   +10 more
wiley   +1 more source