Au nanoparticle-decorated TiO2 nanorod array for plasmon-enhanced quantum dot sensitized solar cells

被引：18
作者：
Gao, Qiqian [1 ,2 ]
Zhang, Xueyu [1 ,2 ]
Duan, Lianfeng [1 ,2 ]
Li, Xuesong [1 ,2 ]
Lu, Wei [1 ,2 ]
机构：
[1] Changchun Univ Technol, Minist Educ, Key Lab Adv Struct Mat, Changchun 130012, Jilin, Peoples R China
[2] Changchun Univ Technol, Adv Inst Mat Sci, Changchun 130012, Jilin, Peoples R China
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2019年 / 129卷
关键词：
Titanium oxide nanorod array; Gold nanoparticle; Plasmonic effect; Photoelectronical performance; Quantum dot-sensitized solar cell; HIGH-PERFORMANCE; PHOTOCATALYTIC PERFORMANCE; CDS; EFFICIENCY; NANOFIBERS; NANOCOMPOSITE; GENERATION; LAYER;
D O I：
10.1016/j.spmi.2019.03.028
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In present work, Au nanoparticle-decorated TiO2 nanorod array composite structure is designed and fabricated as the working electrode of CdS sensitized quantum dot-sensitized solar cells (QDSSCs). The results reveal that the intensity and range of sunlight absorption, photo-generated carriers transport efficiency and overall photoelectric conversion efficiency (PCE) were significantly enhanced due to followed reasons: Hot electrons of Au NPs excited by plasmon effect can offer extra electrons; plasmonic effect can contribute to the extraction and separation of light-generated electrons; the deposition of Au nanoparticles could effectively optimize the interface between TiO2 nanorod and CdS QDs. As a result, an overall PCE of 3.29% has been obtained, which shows 19.6% enhancement compared with pure TiO2 nanorod photoanode.
引用
收藏
页码：185 / 192
页数：8
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