Controllable Self-Induced Passivation of Hybrid Lead Iodide Perovskites toward High Performance Solar Cells
California NanoSystems Institute · University of California, Los Angeles
Abstract
To improve the performance of the polycrystalline thin film devices, it requires a delicate control of its grain structures. As one of the most promising candidates among current thin film photovoltaic techniques, the organic/inorganic hybrid perovskites generally inherit polycrystalline nature and exhibit compositional/structural dependence in regard to their optoelectronic properties. Here, we demonstrate a controllable passivation technique for perovskite films, which enables their compositional change, and allows substantial enhancement in corresponding device performance. By releasing the organic species during annealing, PbI2 phase is presented in perovskite grain boundaries and at the relevant…
Citation impact
- FWCI
- 92.60
- Percentile
- 100%
- References
- 33
Authors
9- QCQi ChenCorresponding
California NanoSystems Institute, University of California, Los Angeles
- HZHuanping Zhou
California NanoSystems Institute, University of California, Los Angeles
- TSTze‐Bin Song
University of California, Los Angeles, California NanoSystems Institute
- SLSong Luo
University of California, Los Angeles, California NanoSystems Institute
- ZHZiruo Hong
University of California, Los Angeles, California NanoSystems Institute
Topics & keywords
- Passivation
- Crystallite
- Perovskite (structure)
- Materials science
- Photoluminescence
- Thin film
- Grain boundary
- Scanning electron microscope