한국표면공학회지 (49권5호 416-422)
Effect of Electrolyte Type on Shape and Surface Area Characteristics of Dendritic Cu Powder
도금전해액의 종류에 따른 수지상 구리 분말의 형상 및 표면적 특성
박다정;박채민;강남현;이규환;
Park, Da Jung;Park, Chae-Min;Kang, Nam Hyun;Lee, Kyu Hwan;
재료연구소 전기화학연구실;동아대학교 신소재공학과;부산대학교 재료공학과;
Surface Technology Division, Korea Institute of Materials Science (KIMS);Department of Materials Science and Engineering, Dong-A University;Department of Materials Science and Engineering, Pusan National University;
We have investigated the effects of applied potential, deposition time and electrolyte types on shapes and physical properties of Cu dendrites by potentiostatic electrodeposition. Finer shape of dendrites was observed at less cathodic potential by 100mV than at the limiting current, due to `effective overpotential`. The shape of copper dendrite is related to the deposition time, too. The dendrite depositing for 10 min showed the finest shape. The finer dendrite has the less apparent density and the larger specific surface area. Dendrite from chloride solution has the lowest density and the largest surface area among three plating solutions, sulfate, chloride and pyrophosphate.
Copper;Dendrite;Electrodeposition;BET Surface area;Bath type;
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