Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7733510 | Journal of Power Sources | 2015 | 9 Pages |
Abstract
Multi-dimensional TiO2 hierarchal structures (MD-THS) assembled by mesoporous nanoribbons consisted of oriented aligned nanocrystals are prepared via thermal decomposing Ti-contained gelatin-like precursor. A unique bridge linking mechanism is proposed to illustrate the formation process of the precursor. Moreover, the as-prepared MD-THS possesses high surface area of â¼106Â cm2Â gâ1, broad pore size distribution from several nanometers to â¼100Â nm and oriented assembled primary nanocrystals, which gives rise to high CdS/CdSe quantum dots loading amount and inhibits the carries recombination in the photoanode. Thanks to these structural advantages, the cell derived from MD-THS demonstrates a power conversion efficiency (PCE) of 4.15%, representing â¼36% improvement compared with that of the nanocrystal based cell, which permits the promising application of MD-THS as photoanode material in quantum-dot sensitized solar cells.
Related Topics
Physical Sciences and Engineering
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Authors
Dapeng Wu, Jinjin He, Shuo Zhang, Kun Cao, Zhiyong Gao, Fang Xu, Kai Jiang,