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Optical design of GaN/In(x)Ga(1-x)N/cSi tandem solar cells with triangular diffraction grating.
- Source :
-
Optics express [Opt Express] 2015 Jun 01; Vol. 23 (11), pp. A614-24. - Publication Year :
- 2015
-
Abstract
- Optical design in enhancing optical absorption of group-III-nitride- and multiple quantum well-based GaN/InxGa <subscript>1-</subscript> xN/cSi dual-junction tandem solar cells with triangular diffraction grating is simulated and optimized by using combined two-dimensional rigorous coupled wave analysis and transfer matrix methods. This paper thoroughly examines these phenomena of optical absorption affected by antireflection coatings, multiple thin-film layers and diffraction gratings with the integrated perspectives of semiconductor physics and electromagnetic theory for the first time. An improvement of 58% in absorption compared to the prototype SC is obtained which means more than 80% of incoming light (hυ > Eg <subscript>Si</subscript> ) can be harvested in this thin-film (< 4 μm in total) design.
Details
- Language :
- English
- ISSN :
- 1094-4087
- Volume :
- 23
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- Optics express
- Publication Type :
- Academic Journal
- Accession number :
- 26072886
- Full Text :
- https://doi.org/10.1364/OE.23.00A614