Wavelength-selective absorption enhancement in thin-film solar cells
- 15 September 1983
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 43 (6), 579-581
- https://doi.org/10.1063/1.94432
Abstract
We present the general principle of wavelength-selective enhancement of absorption in thin-film solar cells by a periodic grating substrate. By exact numerical calculation we demonstrate that substantial short-circuit current gains are realizable in thin-film amorphous silicon (a-SiHx) solar cells. In particular, for a 0.5-μm-thick a-SiHx solar cell, optimal texturing of an Ag substrate to form a one-dimensional reflective grating can yield a 2-mA/cm2 enhancement over the flat substrate case. For a two-dimensional cross-hatched grating substrate the enhancement is estimated to be 3.5-4 mA/cm2Keywords
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