Abstract: Spherical silver particles with an average diameter of (1.88±0.25) μm were prepared by a chemical solution approach using silver nitrate as precursor and ascorbic acid as reducing agent in the assistance of several surfactants. The effects of the surfactants on the morphology and size distribution were investigated. The results showed that tri-sodium citrate could promote the formation of silver nanoflakes. When the mass ratio of Arabic gum, polyvinylpyrrolidenone and polyethylene glycol 4000 was 4∶1∶1, the silver nanoflakes could be self-assembled to micron-sized silver particles with smooth surface and uniform particle size distribution. The reducing ability of ascorbic acid increased with increasing pH value. The as-prepared silver particles were mixed with organic carrier and glass powders to form a paste which was then screen-printed on a silicon substrate and sintered at 850 ℃ to form a conductive thick film with a resistivity of 3.11 μΩ·cm.
叶慧, 沈天成, 陈远志, 徐进. 太阳能电池用球形银颗粒的液相法制备研究[J]. 材料导报, 2024, 38(1): 22050236-5.
YE Hui, SHEN Tiancheng, CHEN Yuanzhi, XU Jin. A Facile Solution Method for the Preparation of Spherical Silver Particles for the Applications of Solar Cells. Materials Reports, 2024, 38(1): 22050236-5.
1 Ren H M, Guo Y, Huang S Y, et al. ACS Applied Materials & Interfaces, 2015, 7(24), 13685. 2 Li W, Wu T, Jiao R, et al. Colloids and Surfaces A-Physicochemical and Engineering Aspects, 2015, 466, 132. 3 Luo S, Chen Y, Fan G, et al. Applied Physics A-Materials Science & Processing, 2014, 117(2), 891. 4 Cheng F, Betts J W, Kelly S M, et al. Materials Science & Engineering C-Materials for Biological Applications, 2015, 46, 530. 5 Sagitha P, Sarada K, Muraleedharan K. Transactions of Nonferrous Me-tals Society of China, 2016, 26(10), 2693. 6 Guo X, Deng D, Tian Q, et al. Advanced Powder Technology, 2014, 25(3), 865. 7 Yeom J, Nagao S, Chen C, et al. Applied Physics Letters, 2019, 114(25), 253103. 8 Lee H H, Chou K S, Shih Z W. International Journal of Adhesion and Adhesives, 2005, 25(5), 437. 9 Guo G, Gan W, Xiang F, et al. Journal of Materials Science-Materials in Electronics, 2011, 22(5), 527. 10 Sannohe K, Ma T, Hayase S. Advanced Powder Technology, 2019, 30(12), 3088. 11 Tian Q H, Deng D, Li Y, et al. Transactions of Nonferrous Metals Society of China, 2018, 28(3), 524. 12 Nam S, Parikh D V, Condon B D, et al. Journal of Nanoparticle Research, 2011, 13(9), 3755. 13 Koczkur K M, Mourdikoudis S, Polavarapu L, et al. Dalton Transactions, 2015, 44(41), 17883. 14 Chen Z, Balankura T, Fichthorn K A, et al. ACS Nano, 2019, 13(2), 1849. 15 Jiang X C, Chen C Y, Chen W M, et al. Langmuir, 2010, 26(6), 4400. 16 Zhang Z T, Zhao B, Hu L M. Journal of Solid State Chemistry, 1996, 121(1), 105. 17 Wang H S, Qiao X L, Chen J G, et al. Materials Chemistry and Physics, 2005, 94(2-3), 449. 18 Chen Z, Ye H, Chen Y, et al. Materials Letters, 2021, 293, 129665.