نتایج جستجو برای: based perovskites

تعداد نتایج: 2938220  

2018
Davide Bartesaghi Adam H. Slavney María C. Gélvez-Rueda Bridget A. Connor Ferdinand C. Grozema Hemamala I. Karunadasa Tom J. Savenije

Double perovskites, comprising two different cations, are potential nontoxic alternatives to lead halide perovskites. Here, we characterized thin films and crystals of Cs2AgBiBr6 by time-resolved microwave conductance (TRMC), which probes formation and decay of mobile charges upon pulsed irradiation. Optical excitation of films results in the formation of charges with a yield times mobility pro...

2017
Taiyang Zhang M Ibrahim Dar Ge Li Feng Xu Nanjie Guo Michael Grätzel Yixin Zhao

Among various all-inorganic halide perovskites exhibiting better stability than organic-inorganic halide perovskites, α-CsPbI3 with the most suitable band gap for tandem solar cell application faces an issue of phase instability under ambient conditions. We discovered that a small amount of two-dimensional (2D) EDAPbI4 perovskite containing the ethylenediamine (EDA) cation stabilizes the α-CsPb...

2013
Rubina Shaheen Javaid Bashir Muhammad Nasir Khan

Room and liquid nitrogen temperatures Mn K-edge extended X-ray fine structure (EXAFS) studies were carried out on powder samples of ALaMnRuO6 (A = Ca, Sr, Ba) perovskites. The EXAFS analysis of Mn K-edge spectra showed MnO6 octahedra are distorted. Among the three perovskites, the polyhedral distortion is highest for SrLaMnRuO6 ( = 1.4 × 10). For CaLaMnRuO6 ( = 0.5 × 10) and BaLaMnRuO6, ( = ...

Journal: :The journal of physical chemistry letters 2016
Mohd S Alias Yang Yang Tien K Ng Ibrahim Dursun Dong Shi Makhsud I Saidaminov Davide Priante Osman M Bakr Boon S Ooi

The high optical gain and absorption of organic-inorganic hybrid perovskites have attracted attention for photonic device applications. However, owing to the sensitivity of organic moieties to solvents and temperature, device processing is challenging, particularly for patterning. Here, we report the direct patterning of perovskites using chemically gas-assisted focused-ion beam (GAFIB) etching...

2016
E. Tenuta C. Zheng O. Rubel

Degradation of hybrid halide perovskites under the influence of environmental factors impairs future prospects of using these materials as absorbers in solar cells. First principle calculations can be used as a guideline in search of new materials, provided we can rely on their predictive capabilities. We show that the instability of perovskites can be captured using ab initio total energy calc...

2016
Bat-El Cohen Małgorzata Wierzbowska

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim wileyonlinelibrary.com (1 of 7) 1604733 configuration is of the structure R2(CH3NH3)n–1MnX3n+1, where R is an organic group, M is a divalent metal, and X is a halide (Cl−, Br−, or I−). The number of perovskite layers are determined by the long organic groups separated by the MX6 layers.[8] In this work, quasi 2D perovskites were synthesized whic...

Journal: :SN applied sciences 2023

Abstract This review emphasizes La-based metal oxides of the perovskite form and their application in heterogeneous catalytic transfer hydrogenation (CTH) reactions from year 2013. Perovskites are potential alternatives to noble metals. The possibility induced-synergy between two cations ABO 3 or multicationic perovskites makes them attractive for reactions. Herein, we look at recent developmen...

Journal: :Journal of Materials Chemistry C 2021

The role of the organic spacer on properties Ge-based layered perovskites has been highlighted.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید