期刊
RSC ADVANCES
卷 7, 期 83, 页码 52988-52994出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ra11246g
关键词
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资金
- National Natural Science Foundation of China [515022553, U1405226]
- Beijing Natural Science Foundation [2164076]
- Fundamental Research Funds for the Central Universities of China [20720150030]
- 111 Project [B16029]
- Fujian Provincial Bureau of Science Technology [2014H6022]
- 1000 Talents Program from Xiamen University
A highly flexible, transparent conducting oxide-and Pt-free photo-rechargeable electric energy storage system is demonstrated by integrating a dye-sensitized solar cell and a supercapacitor face-to-face on double-sided uniformly aligned TiO2 nanotube arrays. The energy harvesting part consists of TiO2 nanotubes as the photoanode and CuS networks as the counter electrode, yielding a PCE of 7.73%. Herein, CuS networks exhibited remarkable mechanical flexibility, superior transparency and excellent electronic conductivity, which not only served as conducting films but also as catalysts for dye-sensitized solar cells. The flexible all-solid-state supercapacitors are composed of polyaniline polymerized on TiO2 nanotubes and carbon cloth, which act as the negative and positive electrodes, respectively. The self-powered photorechargeable device can be charged to 0.64 V in similar to 30 s under standard AM 1.5 (100 mW cm(-2)) illumination conditions. In particular, the photo-charge and discharge performance remained almost stable under bending tests, which is crucial for applications in wearable and portable electronics.
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