A broadband and omnidirectional light-harvesting scheme employing nanospheres on Si solar cells

被引：38

作者：

Lin, Guan-Jhong ^{[1
]}

Wang, Hsin-Ping ^{[1
]}

Lien, Der-Hsien ^{[1
]}

Fu, Po-Han ^{[1
]}

Chang, Hung-Chih ^{[1
]}

Ho, Cheng-Han ^{[1
]}

Lin, Chin-An ^{[1
]}

Lai, Kun-Yu ^{[2
]}

He, Jr-Hau ^{[1
,3
]}

机构：

[1] Natl Taiwan Univ, Inst Photon & Optoelect, Taipei 10617, Taiwan

[2] Natl Cent Univ, Dept Opt & Photon, Chungli 320, Taiwan

[3] Natl Taiwan Univ, Dept Elect Engn, Taipei 10617, Taiwan

来源：

NANO ENERGY | 2014年 / 6卷

关键词：

Light harvesting; Nanospheres; Solar cells; Omnidirectionality; Scattering; EFFICIENCY ENHANCEMENT; METAL NANOPARTICLES; NANOPILLAR ARRAYS; ABSORPTION;

D O I：

10.1016/j.nanoen.2014.03.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The optimized nanospheres (NSs) are simulated and then employed as light-harvesting nanostructures on Si solar cells (SCs). Uniformly distributed monolayers of NSs effectively suppress the reflection over the broadband region at the incident angles up to 85 degrees, greatly improving the optical absorption of the SCs. The calculation results indicating significant reflection elimination and strong forward scattering agree with those obtained by experimental measurements, where the devices with NSs exhibit improved external quantum efficiencies by 13% at 800 nm and conversion efficiency by 21.6%. This simple, controllable and scalable fabrication of broadband and omnidirectional light-harvesting nanostructures is desired from the standpoint of practical applicability in SCs. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：36 / 43

页数：8

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