期刊
RSC ADVANCES
卷 3, 期 45, 页码 23389-23394出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ra44311f
关键词
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资金
- National Nature Science Foundation of China [61074172, 61134010, 60906036, 61377058]
- Program for Chang Jiang Scholars and Innovative Research Team in University [IRT1017]
- 863 High Technology Project [2013AA030902]
A novel 3D TiO2 nanomesh with a high specific surface area was successfully synthesized via a simple hydrothermal method using NaOH and P25 as the reactive agents. The as-prepared and calcined 3D TiO2 nanomesh samples were characterized by transmission electron microscopy, scanning electron microscopy and X-ray powder diffraction. The performance of DSSCs employing TiO2 as the photoelectrode shows an extreme dependence on the microstructure of the photoanode. Specifically, the double-layer photoanode with a hybrid top-layer composed of TiO2 nanomesh and Degussa P25 gives a high power conversion efficiency of 8.82% and a short circuit photocurrent density of 17.86 mA cm(-2), indicating a 47% increase in the conversion efficiency compared to the DSSC with a P25 photoanode (5.98%, 13.33 mA cm(-2))
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