Temperature-dependent photoluminescence characteristics of CH3NH3PbI3-xClx perovskite thin film
Abstract
Recently, organometal halide perovskites are widely considered as promising materials in light emitting and lasing devices due to their potential optical properties. The luminescence characteristics of CH3NH3PbI3-xClx perovskite material have investigated by temperature-dependent PL measurements. We suggest that the tetragonal inclusions in the orthorhombic phase of CH3NH3PbI3-xClx thin film at low temperature result in the 12 K PL spectrum with a broad emission band. In addition, the PL peak of CH3NH3PbI3-xClx thin film as a function temperature shows a tendency of buleshift, which is contrary to the typical tendency of redshift for traditional semiconductor materials.
- Publication:
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Materials Science and Engineering Conference Series
- Pub Date:
- June 2017
- DOI:
- 10.1088/1757-899X/215/1/012030
- Bibcode:
- 2017MS&E..215a2030C