Effect of the molar ratio of B2O3 to Bi 2O3 in Al paste with Bi2O3-B 2O3-ZnO glass on screen printed contact formation and si solar cell performance

Bit Na Kim; Hyeong Jun Kim; Hyo Sik Chang; Hyun Seon Hong; Sung Soo Ryu; Heon Lee

doi:10.7567/JJAP.52.10MB22

Effect of the molar ratio of B₂O₃ to Bi ₂O₃ in Al paste with Bi₂O₃-B ₂O₃-ZnO glass on screen printed contact formation and si solar cell performance

Bit Na Kim, Hyeong Jun Kim, Hyo Sik Chang, Hyun Seon Hong, Sung Soo Ryu, Heon Lee

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

In this study, eco-friendly Pb-free Bi₂O₃-B ₂O₃-ZnO glass frits were chosen as an inorganic additive for the Al paste used in Si solar cells. The effects of the molar ratio of Bi₂O₃ to B2O3 in the glass composition on the electrical resistance of the Al electrode and on the cell performance were investigated. The results showed that as the molar ratio of Bi₂O₃ to B₂O₃ increased, the glass transition temperature and softening temperature decreased because of the reduced glass viscosity. In Al screen-printed Si solar cells, as the molar ratio of Bi₂O₃ to B₂O₃ increased, the sheet electrical resistance of the Al electrode decreased and the cell efficiency increased. The uniformity and thickness of the back-surface field was significantly influenced by the glass composition.

Original language	English
Article number	10MB22
Journal	Japanese journal of applied physics
Volume	52
Issue number	10 PART2
DOIs	https://doi.org/10.7567/JJAP.52.10MB22
Publication status	Published - 2013

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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Effect of the molar ratio of B₂O₃ to Bi ₂O₃ in Al paste with Bi₂O₃-B ₂O₃-ZnO glass on screen printed contact formation and si solar cell performance. / Kim, Bit Na; Kim, Hyeong Jun; Chang, Hyo Sik; Hong, Hyun Seon; Ryu, Sung Soo; Lee, Heon.

In: Japanese journal of applied physics, Vol. 52, No. 10 PART2, 10MB22, 2013.

Research output: Contribution to journal › Article › peer-review

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abstract = "In this study, eco-friendly Pb-free Bi2O3-B 2O3-ZnO glass frits were chosen as an inorganic additive for the Al paste used in Si solar cells. The effects of the molar ratio of Bi2O3 to B2O3 in the glass composition on the electrical resistance of the Al electrode and on the cell performance were investigated. The results showed that as the molar ratio of Bi2O3 to B2O3 increased, the glass transition temperature and softening temperature decreased because of the reduced glass viscosity. In Al screen-printed Si solar cells, as the molar ratio of Bi2O3 to B2O3 increased, the sheet electrical resistance of the Al electrode decreased and the cell efficiency increased. The uniformity and thickness of the back-surface field was significantly influenced by the glass composition.",

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AU - Ryu, Sung Soo

AU - Lee, Heon

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