Improved photovoltaic performance of nanostructured solar cells by neodymium-doped TiO2 photoelectrode

被引：23
|
作者：
Shogh, Shiva [1 ]
Mohammadpour, Raheleh [2 ]
Zad, Azam Iraji [1 ,2 ]
Taghavinia, Nima [1 ,2 ]
机构：
[1] Sharif Univ Technol, Dept Phys, Tehran 113659161, Iran
[2] Sharif Univ Technol, Inst Nanosci & Nanotechnol, Tehran 1458889694, Iran
来源：
MATERIALS LETTERS | 2015年 / 159卷
关键词：
Neodymium-doped TiO2; Nanostructured solar cell; Hydrothermal; NANOPARTICLES; FABRICATION; TRANSPORT; SURFACE;
D O I：
10.1016/j.matlet.2015.07.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Well-crystallized TiO2 and neodymium (Nd)-doped TiO2 nanoparticles with various doping levels were synthesized by hydrothermal method and utilized as the photoanode of nanostructured solar cells. The results indicated that Nd-doping was caused the absorption spectra shift to higher wavelength while the morphology and surface area were unchanged. As a result, by employing 0.4 mol% Nd in the TiO2 photoelectrode, the overall conversion efficiency of the cell reached 9.08% which is 26% higher than pure one. Based on the photo-electrochemical characterizations, the improvement is a consequence of electrons injection increment from dye to TiO2 conduction band, charge collection efficiency enhancement, and trap states density reduction in the Nd-doped photoanode. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：273 / 275
页数：3
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