TiO2-Coated Carbon Nanotube-Silicon Solar Cells with Efficiency of 15%

被引：135

作者：

Shi, Enzheng ^{[1
]}

Zhang, Luhui ^{[1
]}

Li, Zhen ^{[2
,3
]}

Li, Peixu ^{[2
,3
]}

Shang, Yuanyuan ^{[1
]}

Jia, Yi ^{[2
,3
]}

Wei, Jinquan ^{[2
,3
]}

Wang, Kunlin ^{[2
,3
]}

Zhu, Hongwei ^{[2
,3
]}

Wu, Dehai ^{[2
,3
]}

Zhang, Sen ^{[4
]}

Cao, Anyuan ^{[1
]}

机构：

[1] Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China

[2] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China

[3] Tsinghua Univ, Key Lab Adv Mat Proc Technol, Beijing 100084, Peoples R China

[4] Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing 100871, Peoples R China

来源：

SCIENTIFIC REPORTS | 2012年 / 2卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1038/srep00884

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Combining carbon nanotubes (CNTs), graphene or conducting polymers with conventional silicon wafers leads to promising solar cell architectures with rapidly improved power conversion efficiency until recently. Here, we report CNT-Si junction solar cells with efficiencies reaching 15% by coating a TiO2 antireflection layer and doping CNTs with oxidative chemicals, under air mass (AM 1.5) illumination at a calibrated intensity of 100 mW/cm(2) and an active device area of 15 mm(2). The TiO2 layer significantly inhibits light reflectance from the Si surface, resulting in much enhanced short-circuit current (by 30%) and external quantum efficiency. Our method is simple, well-controlled, and very effective in boosting the performance of CNT-Si solar cells.

引用

页数：5

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