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- Title
Impact of one-dimensional photonic crystal back reflector in thin-film c-Si solar cells on efficiency.
- Authors
Jalali, Tahmineh
- Abstract
In this work, the effect of one-dimensional photonic crystal on optical absorption, which is implemented at the back side of thin-film crystalline silicon (c-Si) solar cells, is extensively discussed. The proposed structure acts as a Bragg reflector which reflects back light to the active layer as well as nanograting which couples the incident light to enhance optical absorption. To understand the optical mechanisms responsible for the enhancement of optical absorption, quantum efficiency and current density for all structures are calculated and the effect of influential parameters, such as grating period is investigated. The results confirm that our proposed structure have a great deal for substantial efficiency enhancement in a broad range from 400 to 1100 nm.
- Subjects
PHOTONIC crystals; IMPACT (Mechanics); SOLAR cell efficiency; THIN films; SILICON solar cells; BRAGG gratings
- Publication
Applied Physics A: Materials Science & Processing, 2018, Vol 124, Issue 5, p1
- ISSN
0947-8396
- Publication type
Article
- DOI
10.1007/s00339-018-1786-z