In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 51, No. 10S ( 2012-10-01), p. 10NA11-
Abstract:
In this paper, we show that cell efficiency can be improved by simple preclean steps for silicon substrates. A very low reflectance of less than 1% is observed in the wavelength range from 450 to 700 nm for the silicon substrates precleaned using a NaOH solution followed by a gettering process. Lifetime measurements show that the silicon substrates treated by these preclean processes have a significantly improved minority carrier lifetime owing to a better surface condition than untreated silicon substrates. This result is further supported by the performance of the solar cells. A cell efficiency of 18.609% is achieved in the treated silicon substrates with a gain of 2.14% compared with the untreated silicon substrates.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.51.10NA11
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
2012
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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