Results 31 to 40 of about 10,585 (284)

Highly Controllable Synthesis and DFT Calculations of Double/Triple-Halide CsPbX₃ (X = Cl, Br, I) Perovskite Quantum Dots: Application to Light-Emitting Diodes

Nanomaterials, 2019
Although all-inorganic CsPbX3 (X = Cl, Br, I) perovskite quantum dots (PQDs) have evoked exciting new opportunities for optoelectronic applications due to their remarkable optical properties, their emission color tunability has not been investigated to ...
Xinyue Lao, Xiyu Li, Hans Ågren, Guanying Chen   +3 more
doaj   +1 more source

Crystal structures of perovskite halide compounds used for solar cells

Reviews on Advanced Materials Science, 2020
The crystal structures of various types of perovskite halide compounds were summarized and described. Atomic arrangements of these perovskite compounds can be investigated by X-ray diffraction and transmission electron microscopy. Based on the structural
Oku Takeo
doaj   +1 more source

High-throughput screening of stable and efficient double inorganic halide perovskite materials by DFT

Scientific Reports, 2022
Perovskite solar cells have become the most promising third-generation solar cells because of their superior physical–chemical properties and high photoelectric conversion efficiency.
Xinfeng Diao, Yongxin Diao, Yanlin Tang, Gangling Zhao, Qinzhong Gu, Yu Xie, Yebai Shi, Ping Zhu, Liang Zhang   +8 more
doaj   +1 more source

Investigations of Lead Free Halides in Sodium Based Double Perovskites Cs2NaBiX6(X=Cl, Br, I): an Ab Intio Study

East European Journal of Physics, 2021
Despites the excellent merits of lead based perovskite optoelectronic devices; their unstable nature and toxicity still present a bottleneck for practical applications.
Shaily Choudhary, Shalini Tomar, Depak Kumar, Sudesh Kumar, Ajay Singh Verma   +4 more
doaj   +1 more source

Monolithic CIGS-Perovskite Tandem Cell for an Optimal Light Harvesting Without Current Matching [PDF]

, 2017
We present a novel monolithic architecture for optimal light harvesting in multijunction thin film solar cells. In the configuration we consider, formed by a perovskite (PVK) cell overlying a CIGS cell, the current extracted from the two different ...
Buecheler, Stephan, Colodrero, Silvia, Correa-Baena, Juan-Pablo, Feurer, Thomas, Hagfeldt, Anders, Liu, Quan, Mantilla-Perez, Paola, Martorell, Jordi, Saliba, Michael, Tiwari, Ayodhya N., Toudert, Johann   +10 more
core   +2 more sources

Stability of the Halide Double Perovskite Cs₂AgInBr₆

The Journal of Physical Chemistry Letters, 2023
Cs2AgInBr6 is among the lead-free halide perovskites of interest, predicted by first-principles calculations to be stable with a direct band gap, but there has been only one report of its synthesis. Herein we report the formation of Cs2AgInBr6 thin films through thermal evaporation of CsBr, AgBr, and InBr3 and subsequent annealing between 130 °C and ...
Yukun Liu, Iver J. Cleveland, Minh N. Tran, Eray S. Aydil   +3 more
openaire   +2 more sources

Heteroepitaxial passivation of Cs2AgBiBr6 wafers with suppressed ionic migration for X-ray imaging

Nature Communications, 2019
Ionic migration degrades not only the characteristics of halide perovskite solar cells, but also those of perovskite X-ray detectors. Here Yang et al.
Bo Yang, Weicheng Pan, Haodi Wu, Guangda Niu, Jun-Hui Yuan, Kan-Hao Xue, Lixiao Yin, Xinyuan Du, Xiang-Shui Miao, Xiaoquan Yang, Qingguo Xie, Jiang Tang   +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

Thinning CsPb2Br5 Perovskite Down to Monolayers: Cs-dependent Stability [PDF]

, 2017
Using first-principles density functional theory calculations, we systematically investigate the structural, electronic and vibrational properties of bulk and potential single-layer structures of perovskite-like CsPb2Br5 crystal.
Iyikanat, Fadil, Sahin, Hasan, Sari, Emre   +2 more
core   +17 more sources

Lattice Doping of Lanthanide Ions in Cs2AgInCl6 Nanocrystals Enabling Tunable Photoluminescence

Energy Material Advances, 2021
Lead-free halide double perovskite Cs2AgInCl6 has become the research hotspot in the optoelectronic fields. It is a challenge to utilize the lattice doping by different lanthanide ions with rich and unique photoluminescence (PL) emissions for emerging ...
Ying Liu, Maxim S. Molokeev, Zhiguo Xia
doaj   +1 more source