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)
Roschek T.
Repmann T.
Kluth O.
Müller J.
Wagner H.
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