Controllable coverage of Bi2S3 quantum dots on one-dimensional TiO2 nanorod arrays by pulsed laser deposition technique for high photoelectrochemical properties | |
Department | 固体润滑国家重点实验室 |
Han MM(韩敏敏)1,2; Guo HJ(国洪建)1,2; Li B(李波)1; Jia JH(贾均红)1; Wang WZ(王文珍)1; Jia JH(贾均红) | |
2017 | |
Source Publication | New Journal of Chemistry |
ISSN | 1144-0546 |
Volume | 41Issue:12Pages:4820-4827 |
Abstract | In this work, the pulsed laser deposition (PLD) technique is applied for direct physical deposition of narrow bandgap semiconductor Bi2S3 quantum dots (QDs) on one-dimensional TiO2 nanorod arrays to fabricate quantum dots sensitized solar cells (QDSSCs). Without regard for any protective packaging or surface treatment process for binding QDs, the QDSSCs exhibit excellent stability and high energy conversion efficiency in ambient air. Through varying the laser ablation pulses, the controlled coverage of QDs on nanorods is realized and an optimal energy conversion efficiency of 3.06% is obtained under one sun illumination (AM 1.5, 100 mW cm−2). The enhanced absorption in an extended wavelength range, quick interfacial charge transfer and few recombination chances for electrons with holes are believed to contribute to the improved performance of Bi2S3 QD-sensitized solar cells. Moreover, a sputtered plasma at high velocity can collide intensely with the surface of TiO2, which enables direct atomic contact and endows the QDSSCs with high stability. These promising results provide a potential option of using the PLD technique for the fabrication of QD-based solar cells or other thin film photo-absorption materials. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1039/c7nj00213k |
Funding Organization | the National Natural Science Foundation of China (Grant No. 51471181;51562033) |
Indexed By | SCI |
If | 3.269 |
Language | 英语 |
Funding Project | 金属润滑材料研究组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21986 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Jia JH(贾均红) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100080, Peoples R China |
Recommended Citation GB/T 7714 | Han MM,Guo HJ,Li B,et al. Controllable coverage of Bi2S3 quantum dots on one-dimensional TiO2 nanorod arrays by pulsed laser deposition technique for high photoelectrochemical properties[J]. New Journal of Chemistry,2017,41(12):4820-4827. |
APA | Han MM,Guo HJ,Li B,Jia JH,Wang WZ,&贾均红.(2017).Controllable coverage of Bi2S3 quantum dots on one-dimensional TiO2 nanorod arrays by pulsed laser deposition technique for high photoelectrochemical properties.New Journal of Chemistry,41(12),4820-4827. |
MLA | Han MM,et al."Controllable coverage of Bi2S3 quantum dots on one-dimensional TiO2 nanorod arrays by pulsed laser deposition technique for high photoelectrochemical properties".New Journal of Chemistry 41.12(2017):4820-4827. |
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