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W-doped TiO2 photoanode for high performance perovskite solar cell.
- Source :
-
Electrochimica Acta . Mar2016, Vol. 195, p143-149. 7p. - Publication Year :
- 2016
-
Abstract
- Titanium dioxide (TiO 2 ) with dispersed W-doping shows its capability for efficient electron collection from perovskite to TiO 2 in perovskite solar cell. The conduction band (CB) of TiO 2 moves downward (positive shift) with increasing the tungsten (W) content, which enlarges the energy gap between the CB of TiO 2 and the perovskite. Thus, the efficiency of electron injection from perovskite to TiO 2 is increased. Due to the increased electron injection, W-doped TiO 2 (≤0.2% W content) enhances the short-circuit photocurrent (J sc ) of perovskite solar cell and improves the performance of perovskite solar cell. Perovskite solar cell with 0.1% W-doped photoanode obtains the highest power conversion efficiency (η = 10.6%), which shows enhancement by 13% in J sc and by 17% in η, as compared with the undoped TiO 2 perovskite solar cell. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TITANIUM dioxide
*PEROVSKITE
*SOLAR cells
*PHOTOCURRENTS
*ELECTRON research
Subjects
Details
- Language :
- English
- ISSN :
- 00134686
- Volume :
- 195
- Database :
- Academic Search Index
- Journal :
- Electrochimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 113897878
- Full Text :
- https://doi.org/10.1016/j.electacta.2016.02.147