Intrinsic Raman Signatures of Pristine Hybrid Perovskite CH3NH3PbI3 and its Multiple Stages of Structure Transformation

Mengjin Yang, Kai Zhu, Qiong Chen, Henan Liu, Hui-Seon Kim, Yucheng Liu, Naili Yue, Gang Ren, Shengzhong Liu, Nam-Gyu Park, Yong Zhang

Research output: Contribution to conferencePaperpeer-review

Abstract

By performing spatially resolved Raman and photoluminescence spectroscopy with different illumination conditions, we have achieved a unified understanding towards the spectroscopy signatures of the organic-inorganic hybrid perovskite, transforming from the pristine state (CH3NH3PbI3 or MAPbI3) to fully degraded state (i.e., PbI2), for samples with varying crystalline domain size from mesoscopic scale to macroscopic size, synthesized by three different techniques.

Original languageAmerican English
Pages1620-1623
Number of pages4
DOIs
StatePublished - 18 Nov 2016
Event43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 - Portland, United States
Duration: 5 Jun 201610 Jun 2016

Conference

Conference43rd IEEE Photovoltaic Specialists Conference, PVSC 2016
Country/TerritoryUnited States
CityPortland
Period5/06/1610/06/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

NREL Publication Number

  • NREL/CP-5900-67925

Keywords

  • perovskite CHNHPbI
  • pristine Raman spectrum
  • transformation stages

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