钇掺杂剂对锐钛矿型纳米颗粒性能及染料敏化太阳能电池性能的影响。

The influence of yttrium dopant on the properties of anatase nanoparticles and the performance of dye-sensitized solar cells.

作者信息

Zhao Bingxin, Wang Jinshu, Li Hongyi, Wang Hong, Jia Xinjian, Su Penglei

机构信息

Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, P. R. China.

出版信息

Phys Chem Chem Phys. 2015 Jun 14;17(22):14836-42. doi: 10.1039/c5cp01178g. Epub 2015 May 15.

DOI:10.1039/c5cp01178g

PMID:25978149

Abstract

TiO2 mesoporous nanoparticles (NPs) doped with yttrium (Y) ions are fabricated via an environmentally friendly and facile solvothermal method to serve as a photoanode for dye sensitized solar cells (DSSCs). X-ray diffraction, X-ray photoelectron spectroscopy, transmission electron microscopy and N2 adsorption-desorption tests are used to characterize the influence of yttrium dopant on the properties of TiO2 NPs. The prepared Y-doped TiO2 NPs show the anatase phase and exhibit Ti-O-Y bonds. The photovoltaic performance is primarily associated with the morphological parameters of the NPs. At the optimum Y concentration of 3 at%, the short circuit current density increased from 13.20 to 15.74 mA cm(-2), full sun solar power conversion efficiencies increased from 6.09% up to 7.61% as compared to the blank DSSC.

摘要

通过环境友好且简便的溶剂热法制备了掺杂钇（Y）离子的二氧化钛（TiO₂）介孔纳米颗粒（NPs），用作染料敏化太阳能电池（DSSC）的光阳极。采用X射线衍射、X射线光电子能谱、透射电子显微镜和N₂吸附-脱附测试来表征钇掺杂剂对TiO₂ NPs性能的影响。制备的Y掺杂TiO₂ NPs呈现锐钛矿相并表现出Ti-O-Y键。光伏性能主要与NPs的形态参数有关。在最佳Y浓度为3 at%时，与空白DSSC相比，短路电流密度从13.20增加到15.74 mA cm⁻²，全日照太阳能功率转换效率从6.09%提高到7.61%。