Optical and Electrical Properties of Si-Based Multilayer Structures for Solar Cell Applications

Among the materials of interest in the fields of solar cells, silicon Rich silicon Oxide (SRSO) has proved convincing results. In order to benefit from the carrier confinement within the active material, a multilayered arrangement of SRSO alternated with an insulating matrix is preferred. SiO2 matri...

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Bibliographic Details
Published inECS transactions Vol. 35; no. 4; pp. 273 - 285
Main Authors Nalini, R. Pratibha, Cardin, Julien, Dey, Kalpana R., Portier, Xavier, Dufour, Christian, Gourbilleau, Fabrice
Format Journal Article
LanguageEnglish
Published 01.01.2011
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Summary:Among the materials of interest in the fields of solar cells, silicon Rich silicon Oxide (SRSO) has proved convincing results. In order to benefit from the carrier confinement within the active material, a multilayered arrangement of SRSO alternated with an insulating matrix is preferred. SiO2 matrix has been used as a host matrix, but its limitations appear due to the poor electrical conductivity. Hence, SiNx has become an alternative choice for such matrices in the recent past. This work compares the structure and luminescence properties of SRSO/SiO2 and SRSO/SiNx multilayers and demonstrates the interest in replacing SiO2 sublayer by SiNx. Optical and electrical characterizations are made on these materials We eventually propose a promising type of multilayer structure with enhanced photoluminescence and electrical conductivity with a control over the thermal budget.
ISSN:1938-5862
1938-6737
DOI:10.1149/1.3572289