Efficient planar heterojunction perovskite solar cells with Li-doped compact TiO2 layer

Content Provider	Semantic Scholar
Author	Liu, Detao Li, Shibin Zhang, Peng Wang, Yafei Zhang, Rui Sarvari, Hojjatollah Wang, Feng Wu, Jiang Wang, Zhiming Chen, Zhi D.
Copyright Year	2017
Abstract	Perovskite solar cells (PSCs) have been developed rapidly in recent time, and efficient planar PSCs are regarded as the most promising alternative to the Si solar cells. In this study, we demonstrated that Li-doping of compact TiO2 can reduce the density of electron traps and increase the conductivity of the electron transport layer (ETL) of PSCs. Due to the improved electronic property of ETL, the Li-doped compact TiO2 based planar heterojunction PSCs exhibit negligible hysteretic J-V behavior. Comparing with the undoped compact TiO2 based PSCs, the power conversion efficiency (PCE) of the Li-doped compact TiO2 film based PSCs is improved from 14.2% to 17.1%. Fabrication of highly efficient planar PSCs provides a pathway for commercialization of PSCs.
Starting Page	462
Ending Page	468
Page Count	7
File Format	PDF HTM / HTML
DOI	10.1016/j.nanoen.2016.11.028
Alternate Webpage(s)	https://discovery.ucl.ac.uk/id/eprint/1539113/1/Final%20Accepted%20version.pdf
Alternate Webpage(s)	https://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1030&context=ece_facpub
Alternate Webpage(s)	https://doi.org/10.1016/j.nanoen.2016.11.028
Volume Number	31
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article