超细导电粉体对异质结太阳能电池金属化影响研究

doi:10.11896/cldb.25040291

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Abstract Heterojunction solar cells have become a hot spot in current solar cell technology development due to their advantages, such as low proces-sing temperature, simple manufacturing process, and high photoelectric conversion efficiency. The conductive paste is a critical component that directly determines the photoelectric conversion efficiency of heterojunction solar cells. Consequently, the development of high-performance, low-cost pastes is of paramount economic importance. In this work, chemically synthesized silver powder and silver-coated copper powder were selected to prepare low-temperature silver paste and silver-copper paste for heterojunction solar cells. The research investigated the influence of different types and formulations of conductive powders on the contact resistivity and line resistance of the conductive pastes. The experimental results revealed that the optimal performance was achieved with a formulation consisting of 32.5% nano spherical silver powder (average particle size 0.4 μm) and 60% flake silver powder (average particle size 3.02 μm) in the silver paste. This optimized composition demonstrated the best line resistance and contact resistivity, measuring 1.16 Ω·cm and 1.10 mΩ·cm², respectively. In addition, a silver-copper conductive paste featuring a total silver content of 33% was prepared in this research by combining spherical silver-coated copper powder (18% silver coverage, 3.46 μm in average size) and nano spherical silver powder (0.4 μm in average size). Through optimization of the ratio between the silver powder and silver-coated copper powder, the resulting paste exhibited excellent low-temperature rapid curing characteristics and electrical performance comparable to that of pure silver pastes. The optimal mass ratio was determined to be 20% nano spherical silver powder and 72.5% silver-coated copper powder. With this formulation, the paste achieved a line resistance of 1.41 Ω·cm and a contact resistivity of 1.74 mΩ·cm².

Key words： heterojunction solar cell ultrafine silver powder silver-coated copper powder epoxy resin latent curing agent

Published: 25 July 2026 Online: 2026-08-12

CLC number:

TG335.58

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	Articles by authors
	YAN Fangcun
	DI Juqing
	XUE Hui
	CHEN Yinghong
	QIN Xiansong
	YAN Lingguang
	ZHONG Guanghong

Cite this article:

YAN Fangcun,DI Juqing,XUE Hui, et al. Effect of Ultrafine Conductive Powders on Metallization of Heterojunction Solar Cells[J]. Materials Reports, 2026, 40(14): 25040291-6.

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https://www.mater-rep.com/EN/10.11896/cldb.25040291 OR https://www.mater-rep.com/EN/Y2026/V40/I14/25040291

1 Li C, Song H W, Chen C. Chinese Journal of Luminescence, 2024, 45(5), 711(in Chinese).
李超, 宋宏伟, 陈聪. 发光学报, 2024, 45(5), 711.
2 Xu Z T, Lin J, Huang J S, et al. Chinese Journal of Luminescence, 2025, 46(1), 98(in Chinese).
许振桐, 林杰, Huang Jingsong, 等. 发光学报, 2025, 46(1), 98.
3 Liao Z H, Wang J Y, Yuan Z F, et al. Precious Metals, 2023, 44(S1), 28(in Chinese).
廖志辉, 王建勇, 袁再芳, 等. 贵金属, 2023, 44(S1), 28.
4 Gong F, Wu Q W, Shi W L, et al. New Energy Science and Technology, 2024, 5(1), 16(in Chinese).
巩峰, 吴庆文, 史卫利, 等. 新能源科技, 2024, 5(1), 16.
5 Xu Z, Yang W G, Bai L, et al. Solar Energy, 2024, 362(6), 5(in Chinese).
徐卓, 杨伟光, 白龙, 等. 太阳能, 2024, 362(6), 5.
6 Zhao G X, Yang C S, Tang L, et al. Solar Energy, 2024, 368(12), 31(in Chinese).
赵桂香, 扬川苏, 汤磊, 等. 太阳能, 2024, 368(12), 31.
7 Guo X Y, Zheng C Y, Wang Q M, et al. The Chinese Journal of Nonferrous Metals, 2024, 34(9), 3037(in Chinese).
郭学益, 郑忱奕, 王亲猛, 等. 中国有色金属学报, 2024, 34(9), 3037.
8 Li S, Jin L F, Xu W, et al. Journal of East China University of Science and Technology(Natural Science Edition), 2015, 41(6), 787(in Chinese).
李森, 金理福, 许巍, 等. 华东理工大学学报(自然科学版), 2015, 41(6), 787.
9 Wang J, Wang H Q, Wan L S, et al. Electrical Engineering Materials, 2023(5), 40(in Chinese).
王静, 王海清, 万莉莎, 等. 电工材料, 2023(5), 40.
10 Dong Y, Guo S Q, Li X, et al. Journal of Functional Materials, 2021, 52(4), 4030(in Chinese).
董弋, 郭少青, 李鑫, 等. 功能材料, 2021, 52(4), 4030.
11 Yan F C, Teng Y, Yan J K, et al. Chinese Journal of Rare Metals, 2017, 41(2), 173(in Chinese).
闫方存, 滕媛, 严继康, 等. 稀有金属, 2017, 41(2), 173.
12 Sun Z, Yu X H, Zhuang Z Y, et al. Surface Technology, 2021, 50(5), 119(in Chinese).
孙志, 于晓辉, 庄再裕, 等. 表面技术, 2021, 50(5), 119.
13 Xu JY, Cai X L, Wang K J, et al. Science Technology and Engineering, 2012, 12(4), 922(in Chinese).
徐景雨, 蔡晓兰, 王开军, 等. 科学技术与工程, 2012, 12(4), 922.
14 Chen L H, Dong Y W, Yang H W, et al. Rare Metal Materials and Engineering, 2024, 53(1), 281(in Chinese).
陈雷昊, 董一苇, 杨宏伟, 等. 稀有金属材料与工程, 2024, 53(1), 281.
15 Yang X Y, Chen N F, Tao Q L, et al. Journal of Synthetic Crystals, 2018, 47(9), 1917(in Chinese).
杨秀钰, 陈诺夫, 陶泉丽, 等. 人工晶体学报, 2018, 47(9), 1917.
16 Wang G Y, Han A J, Liu W Z, et al. Acta Energiae Solaris Sinica, 2024, 45(2), 489(in Chinese).
王光远, 韩安军, 刘文柱, 等. 太阳能学报, 2024, 45(2), 489.