Results 51 to 60 of about 7,055 (255)

Wafer-scale single-crystal perovskite patterned thin films based on geometrically-confined lateral crystal growth

Nature Communications, 2017
Wafer-scale deposition of uniform metal halide perovskite single-crystals is a step towards commercialisation. Using geometrically-confined lateral crystal growth, Leeet al., report patterned thin films of highly-aligned single-crystals and achieve ...
Lynn Lee, Jangmi Baek, Kyung Sun Park, Yong-EunKoo Lee, Nabeen K. Shrestha, Myung M. Sung   +5 more
doaj   +1 more source

Indication of CsPbBr3 inclusions in zero dimensional Cs4PbBr6 perovskite single crystals by alkylammonium post‐treatment

Nano Select, 2021
The zero‐dimensional Cs4PbBr6 perovskites are highly emissive materials that demonstrated an effective potential in light emitting applications. There is an on‐going debate regarding the origin of its strong and green photoluminescence, which is not in ...
Sigalit Aharon, Lioz Etgar
doaj   +1 more source

Orbital Geometry‐Governed Response of Pressure‐Tunable Quantum Defects in hBN

Advanced Functional Materials, EarlyView.
Defects in hBN act as ultrasensitive quantum manometers when the energy of the intradefect optical transitions is modified by lattice compression. The orbital geometry of the electron wave functions governs how electron hopping and Coulomb interactions react uniquely to the reduction of the van der Waals gap and in‐plane compression, leading to robust ...
Magdalena Grzeszczyk, Danis I. Badrtdinov, Kenji Watanabe, Takashi Taniguchi, Cyrus E. Dreyer, Malte Rösner, Maciej Koperski   +6 more
wiley   +1 more source

Unusual polarization-insensitive negative photoresponse of chiral double perovskite (R/S-MBA)4AgBiI8

Nano Research
Traditional perovskite single crystals typically exhibit polarization-dependent photoresponse characteristics due to crystallographic anisotropy, particularly showing sensitivity to linearly polarized light (LPL), and to left/right circularly polarized ...
Hao Bian, Wenyu Zhang, Niuniu Zhang, Gaoyu Chen, Dongdong Xu, Wenbo Zhao, Xiangxing Xu   +6 more
doaj   +1 more source

MAPbBr3−xIx Crystals Improved by Accurate Solution-Grown Procedure for Alpha Particle Detection

Frontiers in Physics, 2020
High-quality organic–inorganic halide perovskite brings an opportunity for ideal nuclear radiation detection due to its large carrier mobility, lifetime, and heavy atoms.
Xin Liu, Xin Liu, Xin Liu, Jinghua Fu, Jinghua Fu, Dou Zhao, Dou Zhao, Yingying Hao, Yingying Hao, Hao Zhu, Hao Zhu, Meng Xu, Meng Xu, Binbin Zhang, Binbin Zhang, Wanqi Jie, Wanqi Jie, Wanqi Jie, Yadong Xu, Yadong Xu, Yadong Xu   +20 more
doaj   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

Extremely Long Electron Lifetime in Spontaneously Passivated Polycrystalline Perovskite Layers via Illumination‐Assisted Trap Filling

Advanced Functional Materials, EarlyView.
ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura, Ryuzi Katoh, Takurou N. Murakami   +2 more
wiley   +1 more source

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

Advanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg, Shelly Zlotnikov, Maya Fiorentino, Yuval Elias, Ornit Nagler‐Avramovitz, Hagay Shpaisman   +5 more
wiley   +1 more source

Preparation of High-Quality MAPbX(I, Cl)3 Perovskite Single Crystals for X-Ray Detection Using Silicone-Oil Assisted Method

He huaxue yu fangshe huaxue
High quality and large size bulk single crystals are essential to study the basic properties of perovskite materials and their performance limits of X-ray detection and imaging. In this paper, high quality MAPbI3 and MAPbCl3 single crystals were prepared
ZHANG Zi-ming, ZHAO Yi-ying
doaj   +1 more source

Multi-inch single-crystalline perovskite membrane for high-detectivity flexible photosensors

Nature Communications, 2018
Hybrid halide perovskite single crystals show excellent optoelectronic properties but their small size and large thickness limit their application. Herein Liu et al.
Yucheng Liu, Yunxia Zhang, Zhou Yang, Haochen Ye, Jiangshan Feng, Zhuo Xu, Xu Zhang, Rahim Munir, Jia Liu, Ping Zuo, Qingxian Li, Mingxin Hu, Lina Meng, Kang Wang, Detlef-M. Smilgies, Guangtao Zhao, Hua Xu, Zupei Yang, Aram Amassian, Jiawei Li, Kui Zhao, Shengzhong(Frank) Liu   +21 more
doaj   +1 more source