Hierarchically structured microspheres for high-efficiency rutile TiO 2-based dye-sensitized solar cells | |
Ye, Meidan ; Zheng, Daji ; Wang, Meng ; Chen, Chang ; Liao, Wenmi ; Lin, Changjian ; Lin, Zhiqun ; Lin CJ(林昌健) | |
刊名 | http://dx.doi.org/10.1021/am405442n
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2014 | |
关键词 | Agglomeration Conductive films Conversion efficiency Microspheres Nanocomposites Nanoneedles Oxide minerals Photoelectrochemical cells Solar cells Temperature Titanium dioxide |
英文摘要 | Peachlike rutile TiO2 microsphere films were successfully produced on transparent conducting fluorine-doped tin oxide substrate via a facile, one-pot chemical bath route at low temperature (T = 80-85 C) by introducing polyethylene glycol (PEG) as steric dispersant. The formation of TiO2 microspheres composed of nanoneedles was attributed to the acidic medium for the growth of 1D needle-shaped building blocks where the steric interaction of PEG reduced the aggregation of TiO2 nanoneedles and the Ostwald ripening process. Dye-sensitized solar cells (DSSCs) assembled by employing these complex rutile TiO2 microspheres as photoanodes exhibited a light-to-electricity conversion efficiency of 2.55%. It was further improved to a considerably high efficiency of 5.25% upon a series of post-treatments (i.e., calcination, TiCl4 treatment, and O 2 plasma exposure) as a direct consequence of the well-crystallized TiO2 for fast electron transport, the enhanced capacity of dye loading, the effective light scattering, and trapping from microstructures. ? 2014 American Chemical Society. |
语种 | 英语 |
出版者 | AMER CHEMICAL SOC |
内容类型 | 期刊论文 |
源URL | [http://dspace.xmu.edu.cn/handle/2288/89892] ![]() |
专题 | 化学化工-已发表论文 |
推荐引用方式 GB/T 7714 | Ye, Meidan,Zheng, Daji,Wang, Meng,et al. Hierarchically structured microspheres for high-efficiency rutile TiO 2-based dye-sensitized solar cells[J]. http://dx.doi.org/10.1021/am405442n,2014. |
APA | Ye, Meidan.,Zheng, Daji.,Wang, Meng.,Chen, Chang.,Liao, Wenmi.,...&林昌健.(2014).Hierarchically structured microspheres for high-efficiency rutile TiO 2-based dye-sensitized solar cells.http://dx.doi.org/10.1021/am405442n. |
MLA | Ye, Meidan,et al."Hierarchically structured microspheres for high-efficiency rutile TiO 2-based dye-sensitized solar cells".http://dx.doi.org/10.1021/am405442n (2014). |
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