Influence of A-site cation on the thermal stability of metal halide perovskite polycrystalline films
Source abstract
Abstract
This paper reports a comparative study of thermal stability between all-organic metal halide perovskite (MHP) CsPbBr3 and organic–inorganic hybrid MHP (methylammonium lead bromide MAPbBr3). The film morphology, crystal structure, steady-state photoluminescence intensity, and photoluminescence lifetime of CsPbBr3 and MAPbBr3 polycrystalline films were measured after thermal annealing at temperatures from 70°C to 230°C. The CsPbBr3 films exhibited little change in their structural and luminescent properties after being annealed even at 230°C, whereas the MAPbBr3 films exhibited a significant change in such properties due to their decomposition into PbBr2 when annealed at ≥180°C. This study increased the understanding of the difference in the thermal stability of MHP polycrystalline films with different A-site cations.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Solid-state spectroscopy and crystallography · Technostress in Professional Settings
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science and Engineering, Seoul National University, Seoul Republic of Korea
BK21 PLUS SNU Materials Division for Educating Creative Global Leaders, Seoul National University, Seoul, Republic of Korea
Research Institute of Advanced Materials, Seoul National University, Seoul, Republic of Korea
Funding
National Research Foundation of Korea (NRF) · South Korean government (MIST)
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