Synthesis of Mesoporous TiO2 Microspheres and Their Use as Scattering Layers in Quantum Dot Sensitized Solar Cells
文献类型：期刊论文
| 作者 | Bai Shou-Li1; Lu Wen-Hu1,2; Li Dian-Qing1; Li Xiao-Ning2; Fang Yan-Yan2; Lin Yuan2 |
| 刊名 | ACTA PHYSICO-CHIMICA SINICA
 |
| 出版日期 | 2014-06-01 |
| 卷号 | 30期号:6页码:1107-1112 |
| 关键词 | Mesoporous Tio2 Microsphere Chemical Bath Deposition Cds/cdse Quantum Dot Scattering Layer |
| ISSN号 | 1000-6818 |
| DOI | 10.3866/PKU.WHXB201404111 |
| 英文摘要 | Mesoporous TiO2 microspheres (MSs) were successfully synthesized by the direct hydrolysis of TiCl4 in ethanol aqueous solution using cetyltrimethyl ammonium bromide (CTAB) as a template. X-ray diffraction (XRD) revealed a rutile structure for TiO2 in all the products. Scanning electron microscopy (SEM) revealed that the TiO2 microspheres had an average diameter of 700 nm, and they were composed of packed nanoparticles that had a mean size of about 16 nm. Films with or without TiO2 microspheres, as a scattering layer on top of the TiO2 nanocrystalline layer, were prepared by the doctor-blade method. CdS/ CdSe quantum dots (QDs) were grown on films by chemical bath deposition (CBD) to form QD sensitized solar cells (QDSCs). Ultraviolet-visible and diffuse reflectance spectra showed that these micro-spherical structures were favorable for the deposition of QDs and a relatively higher light scattering effect was observed. This effectively enhanced light harvesting and led to an increase in the photocurrent of the QDSCs. As a result, a power conversion efficiency of 4.5% was obtained, which is 27.7% higher than that of QDSCs without scattering layers and 10.2% higher than that of QDSCs with traditional scattering layers composed of 20 and 400 nm TiO2 solid particles. We attribute this improvement to their higher light scattering effect and longer electron lifetimes. |
| 语种 | 英语 |
| WOS记录号 | WOS:000337251700012 |
| 出版者 | PEKING UNIV PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52045]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li Dian-Qing |
| 作者单位 | 1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Photochem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai Shou-Li,Lu Wen-Hu,Li Dian-Qing,et al. Synthesis of Mesoporous TiO2 Microspheres and Their Use as Scattering Layers in Quantum Dot Sensitized Solar Cells[J]. ACTA PHYSICO-CHIMICA SINICA,2014,30(6):1107-1112. |
| APA | Bai Shou-Li,Lu Wen-Hu,Li Dian-Qing,Li Xiao-Ning,Fang Yan-Yan,&Lin Yuan.(2014).Synthesis of Mesoporous TiO2 Microspheres and Their Use as Scattering Layers in Quantum Dot Sensitized Solar Cells.ACTA PHYSICO-CHIMICA SINICA,30(6),1107-1112. |
| MLA | Bai Shou-Li,et al."Synthesis of Mesoporous TiO2 Microspheres and Their Use as Scattering Layers in Quantum Dot Sensitized Solar Cells".ACTA PHYSICO-CHIMICA SINICA 30.6(2014):1107-1112. |
入库方式： OAI收割
来源：化学研究所
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