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Optical and Scanning Probe Identification of Electronic Structure and Phases in CH3NH3PbBr3 Crystal

Title
Optical and Scanning Probe Identification of Electronic Structure and Phases in CH3NH3PbBr3 Crystal
Authors
Jung H.R.Kim G.Y.Nguyen B.P.Jin H.-J.Jo W.Thu Nguyen T.T.Yoon S.Woo W.S.Ahn C.W.Cho S.Kim I.W.
Ewha Authors
조윌렴윤석현
SCOPUS Author ID
조윌렴scopus; 윤석현scopus
Issue Date
2017
Journal Title
Journal of Physical Chemistry C
ISSN
1932-7447JCR Link
Citation
vol. 121, no. 40, pp. 21930 - 21934
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Hybrid lead halide perovskite possesses attractive properties and outstanding performance. The electronic structure of hybrid lead halide perovskite single crystal can be used to comprehend its intrinsic properties. In this study, the crystal structure of CH3NH3PbBr3 perovskite crystal was elucidated by transmission electron microscopy. Phonon modes and CH3NH3 + rocking modes were analyzed. Band gaps of the crystal were obtained by temperature-dependent Raman scattering spectroscopy and photoluminescence measurement. Surface potential measurement for a (001) plane exhibited a work function of the material and other phases of PbBr2 and CH3NH3Br. From experimentally determined values, an electronic structure of CH3NH3PbBr3 was built. It showed a p-type characteristic. © 2017 American Chemical Society.
DOI
10.1021/acs.jpcc.7b06765
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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