authors
- HOU, GUO JIAO
- GARCIA-TABARES VALDIVIESO, ELISA
- GARCIA, IVAN
- REY-STOLLE, IGNACIO
High-low refractive index stacks as antireflection coatings on triple-junction solar cells
Articles
Overview
published in
- PROGRESS IN PHOTOVOLTAICS Journal
publication date
- July 2022
start page
- 62
end page
- 70
issue
- 1
volume
- 31
Digital Object Identifier (DOI)
International Standard Serial Number (ISSN)
- 1062-7995
Electronic International Standard Serial Number (EISSN)
- 1099-159X
abstract
- Antireflection coatings (ARCs) are crucial components of high-efficiency solar cells. A new ARC design philosophy, dubbed high-low refractive index stacks, has demonstrated good potential to minimize reflection losses for triple-junction and quadruple-junction solar cells in simulations. We have implemented such novel ARCs on GaInP/InGaAs/Ge triple-junction solar cells and compared the experimental performances—external quantum efficiency and reflectivity—with that of identical devices equipping the classic double-layer ARC. For typical materials such as MgF2/ZnS with ambient glass, the results show that the new design improves the short circuit current by 1.8% at normal incidence and 1.6% and 1% for angles of incidence of 30° and 50°, respectively.