Fundamental Research in Crystalline Silicon Photovoltaic Materials: Program Perspective

Bhushan L. Sopori, John P. Benner

Research output: Contribution to conferencePaperpeer-review

Abstract

The directions and goals for future research in crystalline silicon materials for high-efficiency solar cells are identified. Currently, the substrates produced by technologies of commercial interest have lower chemical purity and crystal perfection than those of microelectronics-grade wafers. The material quality of these substrates can be improved by post-growth treatments that can be incorporated in the cell fabrication process schedule. Such treatments, applicable to low-cost single- and polycrystalline substrates, include impurity gettering, defect passivation, and defect annihilation. Development of these processes requires a better understanding of point-defect phenomena involving interactions of defects and impurities.

Original languageAmerican English
Pages973-975
Number of pages3
DOIs
StatePublished - 1992
Externally publishedYes
EventConference Record of the Twenty-Second IEEE Photovoltaic Specialists Conference - 1991 - Las Vegas, NV, USA
Duration: 7 Oct 199111 Oct 1991

Conference

ConferenceConference Record of the Twenty-Second IEEE Photovoltaic Specialists Conference - 1991
CityLas Vegas, NV, USA
Period7/10/9111/10/91

NREL Publication Number

  • SERI/CP-214-4565

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