Results 41 to 50 of about 8,966 (267)

Exploring the half-metallic ferromagnetism, dynamical and mechanical stability, optoelectronic and thermoelectric properties of K2NaMI6 (M = Mn, Co, Ni) for spintronic applications

Scientific Reports, 2023
The structural stability, optoelectronic and magnetic characteristics of K2NaMI6 (M = Mn, Co, and Ni) halide double perovskites have been demonstrated to be explained using density functional theory computations.
Danish Abdullah, Dinesh C. Gupta
doaj   +1 more source

Identification of Free and Bound Exciton States and Their Phase-Dependent Trapping Behavior in Lead Halide Perovskites

, 2017
In this work we probe the sub-gap energy states within polycrystalline and single crystal lead halide perovskites to better understand their intrinsic photophysics behaviors.
Jasieniak, Jacek J., Li, Dongmei, Li, Yiming, Li, Yusheng, Luo, Yanhong, Meng, Qingbo, Shi, Jiangjian, Wu, Huijue, Zhang, Huiyin   +8 more
core   +1 more source

Orbital-Energy Splitting in Anion Ordered Ruddlesden-Popper Halide Perovskites for Tunable Optoelectronic Applications

, 2020
The electronic orbital characteristics at the band edges plays an important role in determining the electrical, optical and defect properties of perovskite photovoltaic materials.
Ghosez, Philippe, Hong, Jiawang, Tang, Gang, Wang, Vei, Zhang, Yajun   +4 more
core   +1 more source

Chemical and Structural Diversity of Hybrid Layered Double Perovskite Halides [PDF]

Journal of the American Chemical Society, 2019
Hybrid halide double perovskites are a class of compounds attracting growing interest because of their richness of structure and property. Two-dimensional (2D) derivatives of hybrid double perovskites are formed by the incorporation of organic spacer cations into three-dimensional (3D) double perovskites.
Lingling Mao, Samuel M. L. Teicher, Constantinos C. Stoumpos, Rhiannon M. Kennard, Ryan A. DeCrescent, Guang Wu, Jon A. Schuller, Michael L. Chabinyc, Anthony K. Cheetham, Ram Seshadri   +9 more
openaire   +4 more sources

Materials Discovery of Stable and Nontoxic Halide Perovskite Materials for High-Efficiency Solar Cells

, 2019
Two critical limitations of organic-inorganic lead halide perovskite materials for solar cells are their poor stability in humid environments and inclusion of toxic lead.
Jacobs, Ryan, Luo, Guangfu, Morgan, Dane
core   +2 more sources

Intrinsic Defect Properties in Halide Double Perovskites for Optoelectronic Applications [PDF]

Physical Review Applied, 2018
12 pages, 10 ...
Li, Tianshu, Zhao, Xingang, Yang, Dongwen, Du, Mao-Hua, Zhang, Lijun   +4 more
openaire   +2 more sources

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

Spatial Electron-hole Separation in a One Dimensional Hybrid Organic-Inorganic Lead Iodide. [PDF]

, 2016
The increasing efficiency of the inorganic-organic hybrid halides has revolutionised photovoltaic research. Despite this rapid progress, the significant issues of poor stability and toxicity have yet to be suitably overcome.
Bronstein, H, Palgrave, RG, Savory, CN, Scanlon, DO   +3 more
core   +2 more sources

Ultrashort laser pulse doubling by metal-halide perovskite multiple quantum wells

Nature Communications, 2020
Laser pulse multiplication is desired in many applications but has been challenging to realize by gain medium. Here Guo et al. achieve double-pulsed stimulated emission in quasi-2D metal-halide perovskites due to the two-channel carrier funneling effect ...
Jia Guo, Tanghao Liu, Mingjie Li, Chao Liang, Kaiyang Wang, Guo Hong, Yuxin Tang, Guankui Long, Siu-Fung Yu, Tae-Woo Lee, Wei Huang, Guichuan Xing   +11 more
doaj   +1 more source

Vapor‐Deposited Cs2AgBiCl6 Double Perovskite Films toward Highly Selective and Stable Ultraviolet Photodetector

Advanced Science, 2020
Double perovskites have shown great potentials in addressing the toxicity and instability issues of lead halide perovskites toward practical applications. However, fabrication of high‐quality double perovskite thin films has remained challenging.
Ming Wang, Peng Zeng, Zenghui Wang, Mingzhen Liu   +3 more
doaj   +1 more source