DocumentCode :
3525799
Title :
Antireflective scheme for InGaP/InGaAs/Ge triple junction solar cells based on TiO2 biomimetic structures
Author :
Kuo-Hsuan Hung ; Ting-Gang Chen ; Tung-Ting Yang ; Peichen Yu ; Chung-Yu Hong ; Yu-Rue Wu ; Guo-Chung Chi
Author_Institution :
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear :
2012
fDate :
3-8 June 2012
Abstract :
In this work, we demonstrate the device design, characterization, fabrication and analysis of biomimetic antireflective structures on III-V multi-junction solar cell. The cell without antireflective structure has a severe change of refractive index between the cell and air, causing a huge reflection (about 30%) and decrease the cell efficiency significantly. We can reduce light reflection by coating a proper material on the cell, diminishing the refractive index difference between cell and air interface. The optimization of single antireflection coating and biomimetic structure will be discussed and the experimental results will also be presented.
Keywords :
III-V semiconductors; antireflection coatings; biomimetics; elemental semiconductors; gallium arsenide; gallium compounds; germanium; indium compounds; light reflection; optimisation; refractive index; semiconductor heterojunctions; solar cells; III-V multijunction solar cell; InGaP-InGaAs-Ge; TiO2; air interface; biomimetic antireflective structures; biomimetic structures-based triple junction solar cells; cell interface; device design; light reflection; refractive index; single antireflection coating; Abstracts; Current measurement; Wavelength measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE
Conference_Location :
Austin, TX
ISSN :
0160-8371
Print_ISBN :
978-1-4673-0064-3
Type :
conf
DOI :
10.1109/PVSC.2012.6318284
Filename :
6318284
Link To Document :
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