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Light trapping design for low band-gap polymer solar cells.
- Source :
-
Optics express [Opt Express] 2014 Mar 10; Vol. 22 Suppl 2, pp. A465-80. - Publication Year :
- 2014
-
Abstract
- We demonstrate numerically a 2-D nanostructured design for light trapping in a low band-gap polymer solar cell. Finite element method simulations are used to study the effect of varying nanostructure periodicity, height, and shape on active layer absorption. Maintaining a constant active layer thickness of 100 nm we observe an enhancement in solar absorption of almost 40% relative to a planar cell. Improvements of this magnitude enable single-junction, low-band-gap cells to achieve power conversion efficiencies of 11.2% and perform competitively with even state-of-the-art tandem cells. Our design is also shown to significantly outperform tandem cells at off-normal angles of incidence.
Details
- Language :
- English
- ISSN :
- 1094-4087
- Volume :
- 22 Suppl 2
- Database :
- MEDLINE
- Journal :
- Optics express
- Publication Type :
- Academic Journal
- Accession number :
- 24922256
- Full Text :
- https://doi.org/10.1364/OE.22.00A465