Results 171 to 180 of about 298,000 (326)

Structure‐Function Integration in 2D Hybrid Perovskite for Fast Neutron and Gamma Ray Discrimination

Advanced Science, EarlyView.
Using an in situ seed‐assisted cooling method, large (28 × 7 × 3 mm3) (GABA)2PbBr4 single crystals are grown, featuring hydrogen‐rich organic layers and a dense PbBr4 framework. This architecture enables efficient γ‐ray absorption, fast‐neutron sensitivity, and clear n/γ pulse‐shape discrimination (FOM up to 1.74), highlighting its potential as a ...
Yingming Wang, Lingyan Xu, Chongqi Liu, Lu Liang, Binghui Zhang, Zhentao Qin, Lixiang Lian, Wei Zheng, Yanyan Lei, Qinzeng Hu, Shuai Song, Chaopeng Mi, Tao Wang, Yadong Xu, Gangqiang Zha, Wanqi Jie   +15 more
wiley   +1 more source

Defect Dynamics and Solution‐Processed Interconnects in Perovskite‐Organic Tandem Solar Cells

Advanced Science, EarlyView.
In this study, we identify the underlying cause of efficiency losses in WBG perovskites, which is ascribed to the presence of mobile defects distributed at surface regions. We further employ effective passivation agent with functional chemical groups to facilitate the healing of the mobile defects, thereby enhancing the VOC to 1.35 V and champion ...
Yingjie Hu, Qianyi Li, Kaifeng Jing, Jiangsheng Yu, Fuyi Zhou, Zhenhai Ai, You Chen, Yue Zhao, Yijia Zhang, Zhenyi Ni, Yang Bai, Gang Li, Guang Yang   +12 more
wiley   +1 more source

Synergistic Effects of Additive Engineering in Enhancing the Performance of Sn–Pb Perovskite Thin‐Film Transistors and Derived Logic Circuits

Advanced Science, EarlyView.
An additive engineering strategy employing 4,8‐dihydrobenzo[1,2‐b:4,5‐b′]dithiophen‐4,8‐dione (BDTD) is utilized to passivate bulk defects, regulate crystallization dynamics, and suppress Sn4+ formation in Sn–Pb perovskite thin‐film transistors. The incorporation of BDTD yields a substantial enhancement in electrical performance, increasing the hole ...
Zeeshan Alam Ansari, Abhishek Kumar, Soumallya Banerjee, Chintam Hanmandlu, Anjali Thakran, Yu‐Te Chen, Po‐Yu Yang, Shenghan Li, Chun‐Wei Pao, Yun‐Chorng Chang, Chu‐Chen Chueh, Chih‐Wei Chu   +11 more
wiley   +1 more source

Enhanced Bandgap Flexibility in Perovskite‐Silicon Tandem Solar Cells via Three‐Terminal Architecture

Advanced Science, EarlyView.
Three‐terminal (3T) perovskite/silicon tandem solar cells overcome the current‐matching constraints of 2T designs. Using an IBC POLO silicon bottom cell, we demonstrate a 30.1% PCE, with performance largely decoupled from perovskite bandgap and enhanced resilience under realistic, time‐dependent solar spectra.
Mohammad Gholipoor, Michael Rienaecker, Xuzheng Liu, Seyedamir Orooji, Lingyi Fang, Paul Fassl, Renjun Guo, Uli Lemmer, Robby Peibst, Ulrich Wilhelm Paetzold   +9 more
wiley   +1 more source

Cation–Anion Synergy Enables Uniform and Stable SAMs for High‐Efficiency Perovskite/TOPCon Tandem Solar Cells

Advanced Science, EarlyView.
A cation‐anion synergistic strategy is developed to enhance self‐assembled monolayer (SAM) adsorption using guanidinium thiocyanate (GuaSCN). Guanidinium (Gua⁺) suppresses micelle aggregation, while thiocyanate (SCN−) promotes phosphonic acid deprotonation and strengthens ionic bonding to the substrate.
Haofan Ma, Xin Li, Huan Li, Jianmin Guan, Luyao Zheng, Jun Wu, Ziyu He, Yunyun Yu, Jungan Wang, Jie Yang, Xinyu Zhang, Meili Zhang, Yuheng Zeng, Menglei Xu, Zhiqin Ying, Xi Yang, Jichun Ye   +16 more
wiley   +1 more source

Halide‐Exchange Arrest Enables Reabsorption‐Free CsPbCl3/CsPbI3 Perovskite Core/Shell Nanocrystals

Advanced Science, EarlyView.
Achieving large Stokes shifts in perovskite nanocrystals is challenging due to halide mobility that disrupts stable core–shell structures. Using CdCl2 passivation, this work stabilizes CsPbCl3/CsPbI3 heterostructures, yielding a ≈1.2 eV Stokes shift, high quantum yield, and fast exciton transfer, enabling reabsorption‐free emitters for advanced ...
Hiba H. Karakkal, Saptarshi Chakraborty, Matteo L. Zaffalon, Jordi Llusar, Shehla Gul, Andrea Fratelli, Leonardo Poletti, Laura Lazzarini, Daniela Erminia Manno, Francesco Meinardi, Francesco Carulli, Francesca Rossi, Ivan Infante, Sergio Brovelli   +13 more
wiley   +1 more source

Electron‐Phonon Interactions Facilitating Large Polaron‐Related Charge‐Carrier Dynamics for Efficient Perovskite Nanocrystal Solar Cells

Advanced Science, EarlyView.
We developed a custom‐synthesized ligand, 2‐thiophenepropenammonium iodide, to exchange the native ligands capped on inorganic perovskite nanocrystals (NCs), and identified that the significantly decreased strength of electron‐phonon interaction benefited the charge‐carrier dynamics in their assembled films.
Wei Guo, Jinfei Dai, Shuaiqi He, Lin Yang, Yanni He, Jianing Duan, Hanlin Cen, Xiaolong Yang, Fang Yuan, Jingrui Li, Zhaoxin Wu, Liberato Manna, Jun Xi   +12 more
wiley   +1 more source

Light-Driven Intraoctahedral Halide Isomerization in Two-Dimensional Mixed Halide Perovskites. [PDF]

J Am Chem Soc
Mao W, Haque E, Bird SA, Dubajic M, Lu Y, Chua XW, Xu Z, Li X, Oldfield M, Li J, Yan W, Hall CR, Lin Q, Zhao J, Chesman ASR, Beane G, Schiffrin A, Ducati C, Medhekar N, Stranks SD, Bach U.   +20 more
europepmc   +1 more source

Integrated Bulk–Surface Engineering Stabilizes MA‐Free Wide‐Bandgap Perovskites for Tandem Photovoltaics

Advanced Science, EarlyView.
High‐bromide wide‐bandgap perovskites suffer from defects and phase segregation, limiting tandem performance. We report a bulk–surface coupling effect to heal lattice/surface defects and suppress halide migration. As a result, the wide‐bandgap device achieves 23.71% efficiency, while monolithic Si‐based tandems reach 32.26%, exhibiting exceptional long‐
Yu Tong, Biao Li, Youming Zhu, Yehui Wen, Tianchi Zhang, Weihua Ning, Yong Wang, Xuegong Yu, Deren Yang   +8 more
wiley   +1 more source

Solvent-Free Fabrication Methods of Metal Halide Perovskites. [PDF]

Adv Mater
Ji R, Mallick A, Rivkin B, Yuce-Cakir H, Jurchescu OD, Vaynzof Y.   +5 more
europepmc   +1 more source