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- W2893512638 abstract "Thin film deposition technologies are rapidly advancing especially in the field of solar energy storage and solar cells. Herein, spin coating and aerosol-assisted chemical vapour deposition (AACVD) are chosen to represent solution-based and vapour-based deposition routes, respectively. SnO2 films processed at low temperature via the mentioned methods are applied in photoelectrochemical (PEC) cell as active photoanode and perovskite solar cell (PSC) as electron transport layer. This study discovers that spin coated SnO2 film which consists of greater amount of oxygen vacancy is beneficial for PEC cell but is detrimental towards the stability and hysteresis of PSC device. The improved PEC performance is majorly attributed to the enhanced light absorption of SnO2 caused by the reduction of its band gap energy. Meanwhile, AACVD method successfully eliminates oxygen vacancy in SnO2 crystal lattice. Although PEC cell shows very poor performance upon using AACVD-fabricated SnO2, the employment of this layer greatly enhances the overall performance of PSC. The absence of oxygen vacancy allows efficient charge transfer at SnO2/perovskite interface and renders SnO2 less hydrophobic which prevents moisture-induced degradation of perovskite layer. Our findings provide valuable information to understanding the film formation mechanism of different fabrication technologies and their suitability for particular optoelectronic application." @default.
- W2893512638 created "2018-10-05" @default.
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- W2893512638 date "2019-01-01" @default.
- W2893512638 modified "2023-10-09" @default.
- W2893512638 title "Eliminating oxygen vacancies in SnO2 films via aerosol-assisted chemical vapour deposition for perovskite solar cells and photoelectrochemical cells" @default.
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- W2893512638 doi "https://doi.org/10.1016/j.jallcom.2018.09.273" @default.
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