Title
Periodic and Random Substrate Textures for Liquid-Phase Crystallized Silicon Thin-Film Solar Cells
Date Issued
01 January 2017
Access level
open access
Resource Type
journal article
Author(s)
Köppel G.
Amkreutz D.
Sonntag P.
Yang G.
Van Swaaij R.
Isabella O.
Zeman M.
Becker C.
Publisher(s)
IEEE Electron Devices Society
Abstract
A major limitation in current liquid-phase crystallized (LPC) silicon thin-film record solar cells is optical losses caused by their planar glass-silicon interface. In this study, silicon is grown on nanoimprinted periodically, as well as randomly textured glass substrates, and successfully implemented into state-of-the-art LPC silicon thin-film solar cells. Compared with an optimized planar reference device, both textures enhance absorption of light. Interlayer and process optimization allowed achieving a material quality comparable with the planar reference device. On the random texture, an open-circuit voltage above 630 mV was obtained, as well as an external quantum efficiency exceeding the planar reference device by +3 mA/cm2.
Start page
85
End page
90
Volume
7
Issue
1
Language
English
OCDE Knowledge area
Física y Astronomía
Scopus EID
2-s2.0-84994378606
Source
IEEE Journal of Photovoltaics
ISSN of the container
21563381
Sources of information: Directorio de Producción Científica Scopus