Efficient Plastic Perovskite Solar Cell with a Low-Temperature Processable Electrodeposited TiO2 Compact Layer and a Brookite TiO2 Scaffold
Advanced Energy Materials, (2017)DOI: 10.1002/aenm.201700169
Abstract
Recent research on fabricating scaffold-type perovskite solar cells on plastic substrates has reported noteworthy progress in replacing the high-temperature processing of TiO2 scaffolds and compact layers with various low-temperature processes. Herein, recent progress in the laboratory is reported regarding the development of electrodeposited TiOx compact layers and brookite TiO2 scaffolds, both of which can be processed under 150 °C without greatly sacrificing their photovoltaic performance. Through systematic characterization of device properties and careful optimization of the fabrication conditions, a record-high 15.76% power conversion efficiency of a plastic TiO2 scaffold-type perovskite solar cell is demonstrated. In addition, bending durability and preliminary stability tests on this plastic perovskite solar cell show promising results and indicate clear directions for future improvement.