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Three‐dimensional numerical analysis of contact geometry in back‐contact solar cells
Author(s) -
Ohtsuka Hiroyuki,
Ohkura Yasuyuki,
Uematsu Tsuyoshi,
Warabisako Terunori
Publication year - 1994
Publication title -
progress in photovoltaics: research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.286
H-Index - 131
eISSN - 1099-159X
pISSN - 1062-7995
DOI - 10.1002/pip.4670020403
Subject(s) - point (geometry) , contact geometry , solar cell , line (geometry) , contact area , geometry , materials science , optoelectronics , mathematics , composite material
The device characteristics of back‐contact solar cells, in which both p‐ and n‐type contacts are integrated on the rear surface, are analyzed using a newly developed three‐dimensional solar cell computing program. Comparing the characteristics of line‐ and point‐contact models having the same contact area shows that, contrary to general expectation, the conversion efficiency of line‐contact cells is higher than that of point‐contact cells. Finally, the design criteria for achieving a conversion effciency higher than 24% are discussed.