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Journal articles
Silicon-rich SiO2/SiO2 multilayers: A promising material for the third generation of solar cell
Abstract : Si-rich-SiO 2 SRSO / SiO 2 multilayers MLs have been grown by reactive magnetron sputtering. The presence of silicon nanoclusters Si-ncls within the SRSO sublayer and annealing temperature influence optical absorption as well as photoluminescence. The optimized annealing temperature has been found to be 1100 ° C, which allows the recovery of defects and thus enhances photoluminescence. Four MLs with Si-ncl size ranging from 1.5 to 8 nm have been annealed using the optimized conditions and then studied by transmission measurements. Optical absorption has been modeled so that a size effect in the linear absorption coefficient in cm −1 has been evidenced and correlated with TEM observations. It is demonstrated that amorphous Si-ncl absorption is fourfold higher than that of crystalline Si-ncls.
Cited literature [1 references]
https://hal.archives-ouvertes.fr/hal-01624557
Contributor : Julien Cardin Connect in order to contact the contributor
Submitted on : Thursday, October 26, 2017 - 2:11:54 PM
Last modification on : Saturday, June 25, 2022 - 9:51:36 AM
Long-term archiving on: : Saturday, January 27, 2018 - 2:07:14 PM
Contributor : Julien Cardin Connect in order to contact the contributor
Submitted on : Thursday, October 26, 2017 - 2:11:54 PM
Last modification on : Saturday, June 25, 2022 - 9:51:36 AM
Long-term archiving on: : Saturday, January 27, 2018 - 2:07:14 PM
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