期刊
NANO ENERGY
卷 11, 期 -, 页码 728-735出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2014.11.042
关键词
Perovskite solar cell; Flexible; Titanium foil; TiO2 nanotubes; Carbon nanotubes; Anodization
类别
资金
- National Research Foundation (NRF), Singapore [NRF-CRP4-2008-03]
- Singapore-Berkeley Research Initiative for Sustainable Energy (SinBeRISE) CREATE program
- World Future Foundation (WFF)
A solid-state, flexible solar cell based on titanium (Ti) foil/TiO2 nanotubes (TNTs) with organic-inorganic halide perovskite absorber and transparent carbon nanotube electrode is demonstrated. TNT arrays together with an inherent blocking layer were simultaneously formed on Ti foil during one-step anodization. TNT arrays serve as deposition scaffold and electron conductor for perovskite absorber. Transparent conductive carbon nanotube network is, laminated on top of perovskite and serves as hole collector as well as transparent electrode for light illumination. Under AM 1.5, 100 mW cm(-2) illumination, power conversion efficiency of 8.31% has been achieved, which is among the highest for TiO2 nanotube based flexible solar cells. Interestingly, up to 100 mechanical bending cycles show little deterioration to the device performance, demonstrating good flexibility of the Ti foil based perovskite solar cells. The Ti foil based solid-state, flexible perovskite solar cells have great potential for applications in building photovoltaics and wearable electronic devices. (C) 2014 Elsevier Ltd. All rights reserved.
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