Performance improvement of triple-junctions GaAs-based solar cell using SiO2-nanopillars/SiO2/TiO2 graded-index anti-reflection coating
- Resource Type
- Conference
- Authors
- Liu, Jheng-Jie; Ho, Wen-Jeng; Syu, Jhih-Kai; Lee, Yi-Yu; Lin, Ching-Fuh; Shiao, Hung-Pin
- Source
- 2013 IEEE 5th International Nanoelectronics Conference (INEC) Nanoelectronics Conference (INEC), 2013 IEEE 5th International. :452-454 Jan, 2013
- Subject
- Components, Circuits, Devices and Systems
Communication, Networking and Broadcast Technologies
Computing and Processing
Signal Processing and Analysis
Photovoltaic cells
Coatings
Reflectivity
Surface treatment
Current measurement
Wavelength measurement
Broadband communication
SiO2-nanopillars
graded-index anti-reflection coating
triple-junction solar cell
external quantum efficiency
current matching
- Language
- ISSN
- 2159-3523
2159-3531
This paper demonstrate experimentally the top-cell external quantum efficiency (EQE) improving of the triple-junction GaAs-based solar cell using a SiO 2 -nanopillars/SiO 2 /TiO 2 graded-index anti-reflection coating (GI-ARC). The reflectance and EQE of the solar cells with SiO 2 /TiO 2 double-layer ARC and with SiO 2 -nanopillars/SiO 2 /TiO 2 GI-ARC are measured and compared. The reflectance of cell with SiO 2 -nanopillar/SiO 2 /TiO 2 GI-ARC had most favorable low reflectance between 550–700 nm wavelengths. Therefore, the EQE enhancement of 5.88% on top-cell and −1.56% on middle-cell and the best current matching were achieved.