Results 31 to 40 of about 1,515,616 (253)

Halide Double-Perovskite Semiconductors beyond Photovoltaics [PDF]

, 2022
Halide double perovskites, A2MIMIIIX6, offer a vast chemical space for obtaining unexplored materials with exciting properties for a wide range of applications.
Sub Inorganic Chemistry and Catalysis, Inorganic Chemistry and Catalysis, Hutter, Eline M., Muscarella, Loreta A.   +3 more
core   +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

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

Preventing bulky cation diffusion in lead halide perovskite solar cells [PDF]

, 2021
The impact on device stability of the bulky cation-modified interfaces in halide perovskite solar cells is not well-understood. We demonstrate the thermal instability of the bulky cation interface layers used in some of the highest performing solar cells
Magdalena, Rovello, Ruipeng, Li, Carlos, Silva-Acuña, Esteban, Rojas-Gatjens, Juan-Pablo, Correa-Baena, Yu, An, Juanita, Hidalgo, Carlo Andrea Riccardo, Perini, Andres Felipe, Castro Mendez   +8 more
core   +2 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

(INVITED) Revisiting Duffy's model for Sb3+ and Bi3+ in double halide perovskites: Emergence of a descriptor for machine learning

Optical Materials: X, 2021
The Duffy's model is reformulated for Sb3+ and Bi3+ in cubic chloro- and bromo-elpasolites with « 0D » perovskite structure. The new equation allows calculating the energy of the first s2 → s1p1 electron transition from crystal structure data. The Stokes
Philippe Boutinaud
doaj   +1 more source

Hollow Metal Halide Perovskite Nanocrystals with Efficient Blue Emissions [PDF]

, 2019
Metal halide perovskite nanocrystals (NCs) have emerged as a new generation light emitting materials with narrow emissions and high photoluminescence quantum efficiencies (PLQEs). Various types of perovskite NCs, e.g.
Liangjin, Xu, Yan, Zhou, Drake, Beery, Michael, Worku, Chenkun, Zhou, YIfeng, Su, Haoran, Lin, Maya, Chaaban, Xinsong, Lin, Yu, Tian, Qingquan, He, Yan, Xin, Biwu, Ma   +12 more
core   +1 more source

Two-Dimensional Materials for Halide Perovskite-Based Optoelectronic Devices

, 2017
Halide perovskites have high light absorption coefficients, long charge carrier diffusion lengths, intense photoluminescence, and slow rates of non-radiative charge recombination.
Shan Chen, Gaoquan Shi, Shi, Gaoquan, Chen, Shan   +3 more
core   +1 more source

Enhancing the photophysical properties of absorption and luminescence in lightly doped halide double perovskite nanomaterials (Cs2Ag1-aBi1-bPbxBr6): Theory and experiment

Next Materials
Lead-free halide double perovskites, such as Cs2AgBiX6, have emerged as less toxic alternatives to the lead-based solar cell absorbers, APbX3 (where A is a monovalent cation and X is halide). Despite their potential application in photovoltaics and x-ray
Celal Kursun, Mohammed Mehedi Hasan, Alamgir Kabir, Ismahan Duz Parrey, Khursheed Ahmad Parrey   +4 more
doaj   +1 more source