Title
Double-side textured liquid phase crystallized silicon thin-film solar cells on imprinted glass
Date Issued
01 April 2015
Access level
metadata only access
Resource Type
journal article
Author(s)
Institute Silicon Photovoltaics
Publisher(s)
Elsevier
Abstract
Emerging liquid phase crystallization (LPC) techniques recently rendered a possible substantial progress in the fabrication of high quality crystalline silicon thin-film solar cells on glass. The implementation of an efficient light trapping texture into such LPC silicon devices is still challenging as an excellent bulk material quality and well-passivated interfaces have to be guaranteed. In this paper we present recent advances in light management for LPC silicon thin-film solar cells on imprinted glasses. A double-sided 2 μm periodic texture is realized by sandwiching the silicon film during the electron-beam induced crystallization process between an imprinted glass substrate coated with silicon oxide and a silicon oxide capping layer. Amorphous-crystalline silicon (a-Si:H/c-Si) heterojunction solar cells with single sided contacting scheme are fabricated. Textured prototype devices and simultaneously processed planar solar cells exhibit a comparable electronic material quality featuring open circuit voltages above 550 mV and efficiencies up to 8.1%. Optical absorption properties of 10 μm thick double-side textured silicon films even predict maximum achievable short circuit current densities in solar cells up to 38 mA/cm2 assuming zero parasitic absorption.
Start page
2
End page
7
Volume
135
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Ingeniería de materiales
Subjects
Scopus EID
2-s2.0-84923539999
Source
Solar Energy Materials and Solar Cells
ISSN of the container
09270248
Sponsor(s)
We thank the SCHOTT AG for funding VP׳s Ph.D. and the German Federal Ministry of Education and Research ( BMBF ) for funding the research activities of the ‘Nano-SIPPE’-group in the program NanoMatFutur (no. 03×5520). Eveline Rudigier-Voigt and Franzisaka Back from SCHOTT AG, Mainz, Germany, are acknowledged for fruitful discussions and the supply of nanoimprint-lithographically textured glass substrates. Furthermore, we thank P. Plocica, K. Jacob, M. Wittig and M. Reiche from HZB for technological support during solar cell fabrication.
Sources of information:
Directorio de Producción Científica
Scopus