Results 51 to 60 of about 78,965 (291)

Enhanced perovskite electronic properties via A-site cation engineering

Fundamental Research, 2021
Organic-inorganic halide perovskites have emerged as excellent candidates for low-cost photovoltaics and optoelectronics. While the predominant recent trend in designing perovskites for efficient and stable solar cells has been to mix different A-site ...
Xufeng Xiao, Yanmeng Chu, Chunyu Zhang, Zhihui Zhang, Zexiong Qiu, Cheng Qiu, Huaixing Wang, Anyi Mei, Yaoguang Rong, Gengzhao Xu, Yue Hu, Hongwei Han   +11 more
doaj   +1 more source

Spontaneous Octahedral Tilting in the Cubic Inorganic Caesium Halide Perovskites CsSnX$_3$ and CsPbX$_3$ (X = F, Cl, Br, I)

, 2017
The local crystal structures of many perovskite-structured materials deviate from the average space group symmetry. We demonstrate, from lattice-dynamics calculations based on quantum chemical force constants, that all the caesium-lead and caesium-tin ...
da Silva, E. Lora, Frost, Jarvist M., Skelton, Jonathan M., Walsh, Aron, Yang, Ruo Xi   +4 more
core   +1 more source

Phase equilibria and thermodynamic properties of oxide systems on the basis of rare earth, alkaline earth and 3d-transition (Mn, Fe, Co) metals. A short overview of [PDF]

, 2015
Review is dedicated studies of phase equilibria in the systems based on rare earth elements and 3d transition metals. It’s highlighted several structural families of these compounds and is shown that many were found interesting properties for practical ...
Aksenova, T. V., Cherepanov, V. A., Gavrilova, L. Ya., Kiselev, E., Urusova, A. S., Volkova, N. E.   +5 more
core   +2 more sources

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

What is moving in hybrid halide perovskite solar cells?

, 2016
Organic-inorganic semiconductors, which adopt the perovskite crystal structure, have perturbed the landscape of contemporary photovoltaics research. In this Account, we discuss the internal motion of methylammonium lead iodide (CH$_3$NH$_3$PbI$_3$) and ...
Frost, Jarvist M., Walsh, Aron
core   +2 more sources

High-pressure/high-temperature synthesis of transition metal oxide perovskites [PDF]

, 2006
Perovskite and related Ruddlesden-Popper type transition metal oxides synthesised at high pressures and temperatures during the last decade are reviewed. More than 60 such new materials have been reported since 1995.
Attfield, J. Paul, Rodgers, Jennifer A., Williams, Anthony J.   +2 more
core   +1 more source

Perovskite‐Derivative Valleytronics

Advanced Materials, 2020
AbstractHalide perovskites are revolutionizing the renewable energy sector owing to their high photovoltaic efficiency, low manufacturing cost, and flexibility. Their remarkable mobility and long carrier lifetime are also valuable for information technology, but fundamental challenges like poor stability under an electric field prevent realistic ...
Jia Liang, Qiyi Fang, Hua Wang, Rui Xu, Shuai Jia, Yuxuan Guan, Qing Ai, Guanhui Gao, Hua Guo, Kaijun Shen, Xiewen Wen, Tanguy Terlier, Gary P. Wiederrecht, Xiaofeng Qian, Hanyu Zhu, Jun Lou   +15 more
openaire   +3 more sources

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Perovskite materials for highly efficient Photo(electro)catalytic water splitting: A mini-review

Nano Materials Science
Sustainable and clean hydrogen development has been considered a mainstream trend in contemporary energy research. Heterogenous photo(electro)catalysis is a promising approach to producing hydrogen in an environmentally friendly manner.
Shuoren Li, Hao Wu, Chang Yan
doaj   +1 more source

First-principles study of epitaxial strain in perovskites

, 2005
Using an extension of a first-principles method developed by King-Smith and Vanderbilt [Phys. Rev. B {\bf 49}, 5828 (1994)], we investigate the effects of in-plane epitaxial strain on the ground-state structure and polarization of eight perovskite oxides:
D. Vanderbilt, David Vanderbilt, J. B. Neaton, J. S. Speck, Karin M. Rabe, M. E. Lines, Oswaldo Diéguez   +6 more
core   +1 more source