Wang, Haibin, Zhao, Chun, Yin, Li, Li, Xinjian, Tu, Xin 
ORCID: 0000-0002-6376-0897, Lim, Eng Gee, Liu, Yina and Zhao, Ce Zhou
(2021)
as electron transport layer for high performance solution-processed perovskite solar cells.
APPLIED SURFACE SCIENCE, 563.
p. 150298.
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Abstract
In this work, W-doped TiO2, was successfully fabricated, as electron transport layer (ETL) in perovskite solar cells (PSCs) via low-temperature solution-processed method, whose outstanding performances were verified. The experimental results reveal that, W6+ was doped into the TiO2 lattice successfully. The improved ETL exhibit significantly improved on conductivity, transport and extraction of photo-generated carriers and less trap-state density as compared with the pristine TiO2 films. Meanwhile, strengthening the velocity of carrier and collection of sufficient charge can efficiently increase short-circuit current (JSC) which favor an improved fill factor (FF) and a higher power conversion efficiency (PCE). Our optimized cation–anion-mixed PSC based on W-doped TiO2 has achieved an efficiency of 18.85%. This improved PCE is almost 28.1% higher than that of the pure TiO2. This study provides a promising approach to design metal-doped TiO2 for fabricating high-performance perovskite solar cells.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Perovskite solar cells, Low temperature, Electron transport layer, W-doped TiO2 |
| Divisions: | Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 03 Jun 2021 15:32 |
| Last Modified: | 18 Jan 2023 22:36 |
| DOI: | 10.1016/j.apsusc.2021.150298 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3125024 |
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