Pb-free silver pastes with SnO-B2O3 glass frits for crystalline silicon solar cells

Jiachu JIANG; Changli LI; Yue HE; Jinquan WEI; Liangliang LI

doi:10.1109/ICEPT.2017.8046404

Pb-free silver pastes with SnO-B₂O₃ glass frits for crystalline silicon solar cells

Jiachu JIANG, Changli LI, Yue HE, Jinquan WEI, Liangliang LI

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

Abstract

Pb-free silver pastes based on SnO-B₂O₃ glass frits were synthesized and used for the front-contact electrodes of crystalline silicon (c-Si) solar cells. First, four kinds of SnO-B₂O₃ glass frits with different amounts of SnO were synthesized by a melt-quenching method, and four Ag pastes based on these glass frits were prepared correspondingly. Then, Ag pastes were printed on c-Si solar cells and fired to form electrodes. The photovoltaic performance of the cells was measured and analyzed. The surface morphology of Ag electrodes was investigated by scanning electron microscopy. The experimental results showed that the peak firing temperature of the Ag pastes had a significant influence on the cell efficiency. The Ag pastes fired at 760 °C possessed the densest microstructure and the largest efficiency. The maximum efficiency was 10.4% with the optimal glass composition. In addition, the Ag/Si interfacial microstructure was studied by scanning transmission electron microscopy. It was found that Ag crystallites and granules of Ag-Sn intermetallic compound were embedded in the SiN_x anti-reflection coating, indicating that the photocurrent could be conducted through these metallic granules besides a direct ohmic contact between bulk Ag and Si emitter. The experimental data showed that SnO-B₂O₃ was a promising glass frit to be used in the front-contact Ag pastes for c-Si solar cells.

Original language	English
Title of host publication	18th International Conference on Electronic Packaging Technology, ICEPT 2017
Editors	Chenxi WANG, Yanhong TIAN, Tianchun YE
Publisher	IEEE
Pages	44-49
Number of pages	6
ISBN (Electronic)	9781538629727
DOIs	https://doi.org/10.1109/ICEPT.2017.8046404
Publication status	Published - 19 Sept 2017
Externally published	Yes
Event	18th International Conference on Electronic Packaging Technology, ICEPT 2017 - Harbin, China Duration: 16 Aug 2017 → 19 Aug 2017

Conference

Conference	18th International Conference on Electronic Packaging Technology, ICEPT 2017
Country/Territory	China
City	Harbin
Period	16/08/17 → 19/08/17

Bibliographical note

Publisher Copyright:
© 2017 IEEE.

Keywords

glass frit
silicon solar cells
silver pastes
SnO-BO

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1109/ICEPT.2017.8046404

Cite this

@inproceedings{1cca2c39b59b4ef6a1779c16988ad12c,

title = "Pb-free silver pastes with SnO-B2O3 glass frits for crystalline silicon solar cells",

abstract = "Pb-free silver pastes based on SnO-B2O3 glass frits were synthesized and used for the front-contact electrodes of crystalline silicon (c-Si) solar cells. First, four kinds of SnO-B2O3 glass frits with different amounts of SnO were synthesized by a melt-quenching method, and four Ag pastes based on these glass frits were prepared correspondingly. Then, Ag pastes were printed on c-Si solar cells and fired to form electrodes. The photovoltaic performance of the cells was measured and analyzed. The surface morphology of Ag electrodes was investigated by scanning electron microscopy. The experimental results showed that the peak firing temperature of the Ag pastes had a significant influence on the cell efficiency. The Ag pastes fired at 760 °C possessed the densest microstructure and the largest efficiency. The maximum efficiency was 10.4% with the optimal glass composition. In addition, the Ag/Si interfacial microstructure was studied by scanning transmission electron microscopy. It was found that Ag crystallites and granules of Ag-Sn intermetallic compound were embedded in the SiNx anti-reflection coating, indicating that the photocurrent could be conducted through these metallic granules besides a direct ohmic contact between bulk Ag and Si emitter. The experimental data showed that SnO-B2O3 was a promising glass frit to be used in the front-contact Ag pastes for c-Si solar cells.",

keywords = "glass frit, silicon solar cells, silver pastes, SnO-BO",

author = "Jiachu JIANG and Changli LI and Yue HE and Jinquan WEI and Liangliang LI",

note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 18th International Conference on Electronic Packaging Technology, ICEPT 2017 ; Conference date: 16-08-2017 Through 19-08-2017",

year = "2017",

month = sep,

day = "19",

doi = "10.1109/ICEPT.2017.8046404",

language = "English",

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JIANG, J, LI, C, HE, Y, WEI, J & LI, L 2017, Pb-free silver pastes with SnO-B₂O₃ glass frits for crystalline silicon solar cells. in C WANG, Y TIAN & T YE (eds), 18th International Conference on Electronic Packaging Technology, ICEPT 2017., 8046404, IEEE, pp. 44-49, 18th International Conference on Electronic Packaging Technology, ICEPT 2017, Harbin, China, 16/08/17. https://doi.org/10.1109/ICEPT.2017.8046404

Pb-free silver pastes with SnO-B₂O₃ glass frits for crystalline silicon solar cells. / JIANG, Jiachu; LI, Changli; HE, Yue et al.
18th International Conference on Electronic Packaging Technology, ICEPT 2017. ed. / Chenxi WANG; Yanhong TIAN; Tianchun YE. IEEE, 2017. p. 44-49 8046404.

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

TY - GEN

T1 - Pb-free silver pastes with SnO-B2O3 glass frits for crystalline silicon solar cells

AU - JIANG, Jiachu

AU - LI, Changli

AU - HE, Yue

AU - WEI, Jinquan

AU - LI, Liangliang

PY - 2017/9/19

Y1 - 2017/9/19

N2 - Pb-free silver pastes based on SnO-B2O3 glass frits were synthesized and used for the front-contact electrodes of crystalline silicon (c-Si) solar cells. First, four kinds of SnO-B2O3 glass frits with different amounts of SnO were synthesized by a melt-quenching method, and four Ag pastes based on these glass frits were prepared correspondingly. Then, Ag pastes were printed on c-Si solar cells and fired to form electrodes. The photovoltaic performance of the cells was measured and analyzed. The surface morphology of Ag electrodes was investigated by scanning electron microscopy. The experimental results showed that the peak firing temperature of the Ag pastes had a significant influence on the cell efficiency. The Ag pastes fired at 760 °C possessed the densest microstructure and the largest efficiency. The maximum efficiency was 10.4% with the optimal glass composition. In addition, the Ag/Si interfacial microstructure was studied by scanning transmission electron microscopy. It was found that Ag crystallites and granules of Ag-Sn intermetallic compound were embedded in the SiNx anti-reflection coating, indicating that the photocurrent could be conducted through these metallic granules besides a direct ohmic contact between bulk Ag and Si emitter. The experimental data showed that SnO-B2O3 was a promising glass frit to be used in the front-contact Ag pastes for c-Si solar cells.

AB - Pb-free silver pastes based on SnO-B2O3 glass frits were synthesized and used for the front-contact electrodes of crystalline silicon (c-Si) solar cells. First, four kinds of SnO-B2O3 glass frits with different amounts of SnO were synthesized by a melt-quenching method, and four Ag pastes based on these glass frits were prepared correspondingly. Then, Ag pastes were printed on c-Si solar cells and fired to form electrodes. The photovoltaic performance of the cells was measured and analyzed. The surface morphology of Ag electrodes was investigated by scanning electron microscopy. The experimental results showed that the peak firing temperature of the Ag pastes had a significant influence on the cell efficiency. The Ag pastes fired at 760 °C possessed the densest microstructure and the largest efficiency. The maximum efficiency was 10.4% with the optimal glass composition. In addition, the Ag/Si interfacial microstructure was studied by scanning transmission electron microscopy. It was found that Ag crystallites and granules of Ag-Sn intermetallic compound were embedded in the SiNx anti-reflection coating, indicating that the photocurrent could be conducted through these metallic granules besides a direct ohmic contact between bulk Ag and Si emitter. The experimental data showed that SnO-B2O3 was a promising glass frit to be used in the front-contact Ag pastes for c-Si solar cells.

KW - glass frit

KW - silicon solar cells

KW - silver pastes

KW - SnO-BO

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DO - 10.1109/ICEPT.2017.8046404

M3 - Conference paper (refereed)

AN - SCOPUS:85032833463

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BT - 18th International Conference on Electronic Packaging Technology, ICEPT 2017

A2 - WANG, Chenxi

A2 - TIAN, Yanhong

A2 - YE, Tianchun

PB - IEEE

T2 - 18th International Conference on Electronic Packaging Technology, ICEPT 2017

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