In:
Journal of Applied Physics, AIP Publishing, Vol. 117, No. 6 ( 2015-02-14)
Abstract:
In this work, we demonstrate the high optical absorption efficiency of a thin-film silicon solar cell. In thin-film solar cells, the efficiency is strongly dependent on light trapping by structures capable of exciting different resonance modes. Here, we consider a trapezoidal surface design that not only reduces reflection with a gradient index of refraction but also excites multiple cavity modes. The absorption can be enhanced further by combining a plasmonic structure, i.e., a silver grating. For comparison, we have separately simulated the silver grating structure, trapezoidal surface structure, and the combined structure. The combined structure retains all absorption effects shown by the individual components, achieving broadband absorption with a high efficiency. The investigations provide a unique design for high-performance solar cells of thin-film silicon.
Type of Medium:
Online Resource
ISSN:
0021-8979
,
1089-7550
Language:
English
Publisher:
AIP Publishing
Publication Date:
2015
detail.hit.zdb_id:
220641-9
detail.hit.zdb_id:
3112-4
detail.hit.zdb_id:
1476463-5
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