International ConferencePREPARATION AND APPLICATION OF 3-DIMENSIONAL YSZ CATHODE FUNCTIONAL LAYERS FOR LOW TEMPERATURE SOLID OXIDE FUEL CELLS Sangbong Ryu, Gu Young Cho, Yoon Ho Lee, Wonjong Yu, Suk Won Cha 20171115 ~ 20171118 7th Asia-Pacific Forum on Renewable Energy, AFORE 2017