Title
High rate deposition of microcrystalline silicon solar cells using 13.56 MHz PECVD-prerequisites and limiting factors
Date Issued
01 January 2002
Access level
metadata only access
Resource Type
conference paper
Author(s)
Forschungszentrum Julich GmbH
Publisher(s)
Materials Research Society
Abstract
Microcrystalline silicon (μc-Si:H) solar cells were prepared in a wide range of deposition parameters using high pressure 13.56 MHz plasma-enhanced chemical vapor deposition (PECVD). Focus was on the influence of deposition pressure, electrode distance and the application of a pulsed plasma on high rate deposition of solar cells. At electrode distances between 5 and 20 mm solar cells with efficiencies ≥8% were prepared. A medium electrode distance of 10 mm yielded best device performance. Pulsed plasma deposition leads to good results at medium deposition rates of ∼5 Å/s, for higher rates a strong decrease of efficiency was observed. The highest efficiencies in a small area reactor were 8.9% for CW and 8.4% for pulsed plasma. We also succeeded in preparing μc-Si:H and a-Si:H/μc-Si:H solar cells in a 30×30 cm2 reactor with efficiencies of 9% and 12.5%, respectively.
Start page
635
End page
640
Volume
715
Language
English
OCDE Knowledge area
Óptica
Scopus EID
2-s2.0-0036924336
ISSN of the container
02729172
Conference
Materials Research Society Symposium - Proceedings: morphous and Heterogeneous Silicon Films 2002
Sources of information:
Directorio de Producción Científica
Scopus