Mechanism of silver/glass interaction in the metallization of crystalline silicon solar cells

Xinjie Sun; Shanshan Yao; Juanjuan Xing; Jiefeng Zhang; Yunxia Yang; Hongbo Li; Hua Tong; Xiao Yuan

doi:10.1088/2053-1591/ab6ca2

Materials Research Express (Jan 2020)

Mechanism of silver/glass interaction in the metallization of crystalline silicon solar cells

Xinjie Sun,
Shanshan Yao,
Juanjuan Xing,
Jiefeng Zhang,
Yunxia Yang,
Hongbo Li,
Hua Tong,
Xiao Yuan

Affiliations

Xinjie Sun: ORCiD; Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai, 200237, People’s Republic of China
Shanshan Yao: Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai, 200237, People’s Republic of China
Juanjuan Xing: School of Materials Science and Engineering, Shanghai University , Shanghai, 200444, People’s Republic of China
Jiefeng Zhang: Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai, 200237, People’s Republic of China
Yunxia Yang: Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai, 200237, People’s Republic of China
Hongbo Li: Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai, 200237, People’s Republic of China
Hua Tong: Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai, 200237, People’s Republic of China
Xiao Yuan: Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology , Shanghai, 200237, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/ab6ca2
Journal volume & issue: Vol. 7, no. 1
p. 016315

Abstract

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In order to reveal the interaction between solid substances (Ag powder and glass frit) during the metallization of crystalline silicon solar cells, the effect of glass frit on the Ag powder sintering and the mechanism of Ag colloid formation in glass phase were investigated. The results show that the Ag powder could grow into larger grains as mixed with a certain amount of glass frit, because the corrosion of Ag by glass melt enabled early start of Ag sintering. This makes the internal grain size and electric resistivity of sintered Ag lines to be closely related to the glass content in the silver paste. Subsequently, it was found that the formation of Ag colloid in glass phase is a physical process rather than a chemical transformation process. Taking Pb-B-Zn-Al composite oxide glasses for exemplification, a feasible strategy of raising the solubility of Ag in glass melt is proposed.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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