文献类型：会议论文

英文题名：Green synthesized CdSe quantum dots capped by 3-mercaptopropionic acid sensitized solar cells

作者：Gao, Bing[1]; Shen, Chao[1]; Yang, Yunxia[1]; Yuan, Shuanglong[1]; Chen, Guorong[1]

机构：[1] Department of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China

会议日期：October 9, 2013 - October 12, 2013

会议地点：Antalya, Turkey

语种：英文

外文关键词：Titanium dioxide - Absorbance - Cadmium compounds - Solar cells - Selenium compounds - Semiconductor quantum dots - II-VI semiconductors - Nanocrystals

摘要：In this paper, the green synthesized CdSe quantum dots (QDs) capped by 3-mercaptopropionic acid (MPA) sensitized solar cells are fabricated. Glycerol is chosen as the solvent to prepare the CdSe QDs, which makes the whole reaction is environmental-friendly. After MPA ligand exchanging, the as-synthesized CdSe QDs maintain the original absorbance at ca. 500 nm, coherence to the maximum absorbance of the solar spectrum. The strong photoluminescence quenching of the MPA capped QDs increases the nonradiative decay processes and is beneficial to the electron transfer. Then the MPA ligand exchanged QDs were assembled onto mesoscopic TiO2 film to integrate into QD sensitized solar cells. The power conversion efficiency of the QD-sensitized solar cells reaches 0.12% under sun illumination (AM 1.5, 100 mW cm-2) and relatively mechanism is discussed. ? Springer International Publishing Switzerland 2014.