Results 141 to 150 of about 87,943 (287)

In Situ Construction of n‐Type SnOx Interlayer by Converting Surface Sn4+ for Efficient Tin Perovskite Solar Cells

Advanced Science, EarlyView.
An n‐type SnOx layer is constructed in situ on tin perovskite surfaces by converting surface‐enriched Sn4+ species through a one‐step SnCl2·2H2O treatment. This strategy enhances interfacial charge extraction and suppresses defect‐induced degradation, boosting the power conversion efficiency from 13.21% to 16.02% while maintaining negligible efficiency
Feng Yang, Yang Yang, Kun Wang, Jingyuan Tian, Peimeng Wang, Ziyong Kang, Yang Guo, Wei Tian, Hongqiang Wang, Yu Tong   +9 more
wiley   +1 more source

Electric‐Field‐Controlled Interconversion of Antiferromagnetic States in a Two‐Dimensional Antiferroelectric Halide Perovskite

Advanced Science, EarlyView.
Electric‐field‐controlled antiferroelectric switching offers a ferroic pathway for reversible interconversion between symmetry‐distinct antiferromagnetic states in a two‐dimensional halide perovskite. A spin‐split altermagnet transforms into a spin‐degenerate type‐IV antiferromagnet through field‐driven structural symmetry reconstruction, enabling ...
Wan Zhao, Xiaodong Zhou, Tao Zhu, Jie Chen, Hang Li, Jingyan Chen, Meiling Xu, Wenhong Wang   +7 more
wiley   +1 more source

Van der Waals Heterostructures for Next‐Generation Spintronics: Multiferroic‐Mediated Magnetoelectric Properties

Advanced Science, EarlyView.
As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee, Jiwoong Yang, Inhyeok Oh, Sanghan Lee   +3 more
wiley   +1 more source

Impact of photoinduced phase segregation in mixed-halide perovskite absorbers on their material and device stability

APL Energy
Mixed-halide perovskites enable bandgap engineering for tandem solar cell and light-emitting diode applications. However, photoinduced halide phase segregation introduces a compositional instability, that is, formation of I-rich and Br-rich phases, which
Shivam Singh, Ellen Moons
doaj   +1 more source

Advances in Se Wide‐Bandgap Photovoltaics and TexSe1‐x SWIR Photodiodes

Advanced Science, EarlyView.
In this review, fundamental properties and current challenges in Se photovoltaics (PVs) for tandem and indoor PVs and TexSe1‐x alloys for short wave infrared photodiodes are discussed. A case is made for the practicality of elemental chalcogenide optoelectronics, and a pathway toward resolving the key challenges in these respective technologies is ...
Adam D. Alfieri, Deep Jariwala
wiley   +1 more source

Spectroelectrochemical insights into the intrinsic nature of lead halide perovskites

Nano Convergence
Lead halide perovskites have emerged as a new class of semiconductor materials with exceptional optoelectronic properties, sparking significant research interest in photovoltaics and light-emitting diodes.
Seonhong Min, Minwook Jeon, Junsang Cho, Jin Ho Bang, Prashant V. Kamat   +4 more
doaj   +1 more source

Effective Solvent‐Engineered All‐Inorganic CsPbI2Br Perovskite Solar Cells

Advanced Science, EarlyView.
All‐inorganic CsPbI2Br perovskite composition has gathered a lot of attention in recent years due to its thermal robustness, convenience for space applications as well as for the all‐perovskite triple junction applications as a top cell due to its wide‐bandgap (1.9 eV) nature.
Rajarshi Roy, Mahdi Malekshahi Byranvand, Tim Kodalle, Maximilian Krappel, Laxman Gouda, Stephan Boehringer, Chittaranjan Das, Mayank Kedia, Carolin M. Sutter‐Fella, Michael Saliba   +9 more
wiley   +1 more source

Understanding lead halide perovskites [PDF]

The Journal of Chemical Physics, 2020
openaire   +2 more sources

Asymmetric Fluorinated Spiro Hole‐Transport Materials Enabled by a Rapid Core‐Forming Strategy for Blade‐Coated Perovskite Solar Cells

Advanced Science, EarlyView.
Facile synthesis of asymmetric fluorinated spiro‐type HTMs combined with blade‐coating fabrication and vacuum‐assisted crystallization enables high‐efficiency PSCs with PCEs of 24.49% (0.09 cm2) and 23.28% (1.00 cm2), along with excellent stability.
Kun‐Mu Lee, Xiu‐Ping Lin, Ya‐Ho Chang, Cheng‐Ting Tsai, Pei‐Chen Chu, Yu‐Hsun Chen, Wei‐Hao Chiu, Yu‐Che Lin, Sie‐Rong Li, Hsiao‐Chi Hsieh, Kang‐Ling Liau, Shih‐I. Lu, Chih‐Min Wang, Yan‐Duo Lin   +13 more
wiley   +1 more source

Improving High‐Temperature Operational Stability of Inverted Perovskite Solar Cells Through MXene Heat‐Dissipating Layers

Advanced Science, EarlyView.
MeO‐2PACz‐functionalized MXene nanosheets create a thermally conductive buried interface in inverted perovskite solar cells. The interface improves heat spreading, suppresses defects and ion migration, and strengthens charge extraction, extending T80 at 65°C from 141 to 687 h while maintaining competitive efficiency.
Masoud Karimipour, Nil Monrós Oliveras, Zhenchuan Tian, Timm Swoboda, Francesco Salutari, Marianna Sledzinska, Maria Chiara Spadaro, Kenedy Tabah Tanko, Javier Rodríguez‐Viejo, Jordi Arbiol, Tiankai Zhang, Feng Gao, Monica Lira‐Cantu   +12 more
wiley   +1 more source