期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 240, 期 -, 页码 55-60出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2016.05.015
关键词
Hybrid organic-inorganic perovskites; Photovoltaics; X-ray diffraction; Optical properties
资金
- University of Pavia
- BASF S.p.A.
In this paper we report the synthesis, the crystal structure and the optical response of APbX(3) (A=MA, DMA, and TMA; X=I, Br) hybrid organic-inorganic materials including some new phases. We observe that as the cation group increases in size, the optical absorption edge shifts to higher energies with energy steps which are systematic and independent on the anion. A linear correlation between the optical bad gap and the tolerance factor has been shown for the series of samples investigated. (C) 2016 Elsevier Inc. All rights reserved.
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