Pembuatan serbuk perak dengan metode reduksi-presipitasi kimia untuk aplikasi sel surya telah dilakukan. Asam askorbat digunakan sebagai agen pereduksi, dengan gum arab sebagai agen dispersan dan kalium sulfat sebagai agen modifier. Proses reduksi dilakukan dengan metode Irrizary-Rivera dan metode Wu Songping. Pengaruh variasi dosis gum arab dan kalium sulfat terhadap dispersitas dan morfologi partikel perak diamati. Analisis ukuran dan bentuk partikel dilakukan dengan X-Ray mapping EDS. Serbuk perak dengan ukuran 1-2 µm dan bentuk spherical-polihedral didapatdengan metode Irrizary-Rivera dari 0,5 g gum arab dan 0,35 g kalium sulfat. Kadar perak tertinggi adalah 87,10% (%berat) didapat dari metode Wu Songping dengan 0,5 g gum arab dan 0,35 g kalium sulfat. Yield tertinggi sebesar 84,70% diperoleh dari metode Irrizary-Rivera dan 92,59% diperoleh dari metode Wu Songping. Kata kunci: serbuk perak, reduksi-presipitasi kima, gum arab, kalium sulfat.

The preparation of silver powder with chemical reduction-precipitation method for solar cell application was investigated. Ascorbic acid was employed as reducing agent, with Arabic gum as dispersant agent and potassium sulfate as modifier agent. The chemical reduction process is conducted with Irrizary-Rivera And Wu Songping method. Effects of variation Arabic gum and potassium sulfate dosage on silver particle dispersity and morphology is studied. The X-Ray mapping EDS were employed to analyze size and shape of silver powder formed. Silver powder from Irrizary-Rivera method has spherical-polyhedral shape with size of 1-2 µm obtained from the dose of 0,5 g of Arabic gum and 0,35 g of potassium sulfate. The highest silver content in the silver powder was obtained at 87,10%mass obtained from the dose of 0,5 g of Arabic gum and 0,35 g of potassium sulfate using Wu Songping method. The highest yield of silver powder were obtained at efficiencies of 84,70% and 92,59% from the Irrizary-Rivera and Wu Songping method, respectively. Keywords: Silver powder, chemical reduction-precipitation, Arabic gum, potassium sulfate.

http://digilib.polban.ac.id/gdl.php?mod=browse&op=read&id=jbptppolban-gdl-ilhamasyau-6036