Trapping light in polymer photodiodes with soft embossed gratings

Authors
Roman, LS Inganas, O Granlund, T Nyberg, T Svensson, M Andersson, MR Hummelen, JC
Citation
Ls. Roman et al., Trapping light in polymer photodiodes with soft embossed gratings, ADVAN MATER, 12(3), 2000, pp. 189
Citations number
23
Categorie Soggetti
Multidisciplinary,"Material Science & Engineering
Journal title
ADVANCED MATERIALS
ISSN journal
09359648 → ACNP
Volume
12
Issue
3
Year of publication
2000
Database
ISI
SICI code
0935-9648(20000203)12:3<189:TLIPPW>2.0.ZU;2-9
Abstract
Increasing the conversion efficiency is very important in photovoltaic devi ces, as is cheap and simple technology. Here is demonstrated a soft embossi ng technique for printing a submicrometer grating with an elastomeric mold into an optically active polymer layer in a photovoltaic device (see Figure ). The light trapping due to the grating pattern enhances the photoconversi on efficiency by more than 25 % at normal light incidence (see also inside front cover).