Tuning the Light Emission Properties by Band Gap Engineering in Hybrid Lead Halide Perovskite
- 12 December 2014
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 136 (51), 17730-17733
- https://doi.org/10.1021/ja511198f
Abstract
We report about the relationship between the morphology and luminescence properties of methylammonium lead trihalide perovskite thin films. By tuning the average crystallite dimension in the film from tens of nanometers to a few micrometers, we are able to tune the optical band gap of the material along with its photoluminescence lifetime. We demonstrate that larger crystallites present smaller band gap and longer lifetime, which correlates to a smaller radiative bimolecular recombination coefficient. We also show that they present a higher optical gain, becoming preferred candidates for the realization of CW lasing devices.Funding Information
- European Commission (604032)
This publication has 31 references indexed in Scilit:
- Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH 3 NH 3 PbI 3Science, 2013
- Using a two-step deposition technique to prepare perovskite (CH3NH3PbI3) for thin film solar cells based on ZrO2 and TiO2 mesostructuresRSC Advances, 2013
- Sequential deposition as a route to high-performance perovskite-sensitized solar cellsNature, 2013
- Semiconducting Tin and Lead Iodide Perovskites with Organic Cations: Phase Transitions, High Mobilities, and Near-Infrared Photoluminescent PropertiesInorganic Chemistry, 2013
- Size-Dependent Trap-Assisted Auger Recombination in Semiconductor NanocrystalsNano Letters, 2013
- Tuning the Band Gap in Hybrid Tin Iodide Perovskite Semiconductors Using Structural TemplatingInorganic Chemistry, 2005
- Carrier-density dependence of the photoluminescence lifetimes in ZnCdSe/ZnSSe quantum wells at room temperatureApplied Physics Letters, 1999
- The role of amplified spontaneous emission in the ultrafast relaxation dynamics of polymer filmsChemical Physics Letters, 1998
- Recombination of correlated electron-hole pairs in two-dimensional semiconductorsPhysical Review B, 1993
- Temperature dependence of the energy gap in semiconductorsPhysica, 1967