Results 61 to 70 of about 1,361 (209)

Memristive Physical Reservoir Computing

Advanced Science, EarlyView.
Memristors’ nonlinear dynamics and input‐dependent memory effects make them ideal candidates for high‐performance physical reservoir computing (RC). Based on their conductance modulation, memristors can be classified as electronic or optoelectronic types.
Dian Jiao, Ziyuan Wang, Jingrui Wang, Li Zhang, Xianhua Wei, Lingxiang Hu, Zongxiao Li, Athanasios V. Vasilakos, Zhizhen Ye, Fei Zhuge   +9 more
wiley   +1 more source

Solar Degradation and Stability of Lead‐Free Light Absorber Cs2AgBiBr6 in Ambient Conditions

Advanced Photonics Research
As numerous studies on highly efficient perovskite solar cells have been conducted on lead‐based light absorbers, such as MAPbI3 and FAPbI3, increasing concerns are rising regarding toxicity and stability issues.
Dennis Michael Jöckel, Songhak Yoon, Alexander Frebel, Samuel Meles Neguse, Jürgen Dieter Rossa, Alexander Jürgen Bett, Martin Schubert, Marc Widenmeyer, Benjamin Balke–Grünewald, Anke Weidenkaff   +9 more
doaj   +1 more source

Enhancing the photophysical properties of absorption and luminescence in lightly doped halide double perovskite nanomaterials (Cs2Ag1-aBi1-bPbxBr6): Theory and experiment

Next Materials
Lead-free halide double perovskites, such as Cs2AgBiX6, have emerged as less toxic alternatives to the lead-based solar cell absorbers, APbX3 (where A is a monovalent cation and X is halide). Despite their potential application in photovoltaics and x-ray
Celal Kursun, Mohammed Mehedi Hasan, Alamgir Kabir, Ismahan Duz Parrey, Khursheed Ahmad Parrey   +4 more
doaj   +1 more source

Chemical Mapping of Excitons in Halide Double Perovskites [PDF]

, 2023
Halide double perovskites are an emerging class of semiconductors with tremendous chemical and electronic diversity. While their bandstructure features can be understood from frontier-orbital models, chemical intuition for optical excitations remains ...
Biega, Raisa-Ioana, Chen, Yinan, Filip, Marina R., Leppert, Linn   +3 more
core   +4 more sources

Electrode‐Engineered Dual‐Mode Multifunctional Lead‐Free Perovskite Optoelectronic Memristors for Neuromorphic Computing

Advanced Electronic Materials, EarlyView.
A lead‐free perovskite memristive solar cell structure that call emulate both synaptic and neuronal functions controlled by light and electric fields depending on top electrode type. ABSTRACT Memristive devices based on halide perovskites hold strong promise to provide energy‐efficient systems for the Internet of Things (IoT); however, lead (Pb ...
Michalis Loizos, Konstantinos Rogdakis, Konstantinos Chatzimanolis, Katerina Anagnostou, Emmanuel Kymakis   +4 more
wiley   +1 more source

Multiscale Perspectives on Perovskite Instability: From Atomistic Deformation to Device Degradation in Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Multiscale perspectives on how excess charges in soft lead halide perovskites induce operational instability in photovoltaic devices are presented. Localized carriers formed under thermodynamic non‐equilibrium states modify atomistic interactions and drive lattice distortions, accelerating device degradation.
Joo‐Hong Lee, Donghyeon Lee, Seoyoon Lee, Jin‐Wook Lee, Mansoo Choi, Min‐cheol Kim, Namyoung Ahn   +6 more
wiley   +1 more source

Performance optimization of cesium silver bismuth bromide-based perovskite solar cell using CZTS buffer layer: A device modeling approach

Results in Engineering
Cesium silver bismuth bromide (Cs2AgBiBr6) has emerged as a highly promising material for photovoltaic applications due to its lead-free composition and favorable optoelectronic properties.
Aqsa Islam, Hafeez Anwar, Yasir Jamil, Muhammad Shahid   +3 more
doaj   +1 more source

Structure and Stability of the Iodide Elpasolite, Cs2AgBiI6

, 2023
Iodide elpasolites (or double perovskites, A2B'B"I6, B' = M+, B" = M3+) are predicted to be promising alternatives to lead-based perovskite semiconductors for photovoltaic and optoelectronic applications, but no iodide elpasolite has ever been ...
De Yoreo, James J., Gamelin, Daniel R., Kluherz, Kyle T., Mergelsberg, Sebastian T.   +3 more
core  

Solution processable direct bandgap copper-silver-bismuth iodide photovoltaics : compositional control of dimensionality and optoelectronic properties [PDF]

, 2022
Altres ajuts: SRR acknowledges the support from "laCaixa" Foundation (ID 100010434; LCF/BQ/PI20/11760024). Open access publishing facilitated by Monash University, as part of the Wiley - Monash University agreement via the Council of Australian ...
Bach, Udo, Chatti, Manjunath, Chesman, Anthony S. R., Fürer, Sebastian O., Glück, Nadja, Hora, Yvonne, Lira-Cantu, Monica, Pai, Narendra, Raga, Sonia, Rai, Nitish, Reddy, Saripally Sudhaker, Rietwyk, Kevin J., Scully, Andrew D., Sepalage, Gaveshana A., Simonov, Alexandr N., Tan, Boer, Xu, Zhou   +16 more
core   +2 more sources

High‐Sublimation‐Temperature Additives for Efficient Perovskite Solar Cells via Single‐Source Evaporation

Advanced Energy Materials, EarlyView.
The introduction of high‐sublimation‐temperature additives during the mechanosynthesis of FAPbI3 powders enables the single‐source evaporation of phase‐pure, additive‐free FAPbI3 thin films of high optoelectronic quality. The additive‐engineered deposition process yields photovoltaic devices with stabilized efficiencies exceeding 18% for an active ...
Zongbao Zhang, Ran Ji, Tim Schramm, Elena Siliavka, Chunqiu Zheng, Julius Brunner, Bekcy Joseph, Kashimul Hossain, Angelika Wrzesinska‐Lashkova, Vladimir Shilovskikh, Tianyu Zhao, Nathaniel P. Gallop, Boris Rivkin, Yana Vaynzof   +13 more
wiley   +1 more source