화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.50, No.1, 162-166, February, 2012
Export Citation
전기증착법을 이용한 ZnO 막대구조의 형성 및 염료감응형 태양전지에의 응용
Fabrication of ZnO Rod by Electrodeposition and Its Application to Dye Sensitized Solar Cell
김혜영, 조윤경, 이기영, 이인회, 탁용석†
  • 인하대학교 화학공학과, 402-701 인천시 남구 용현동 253
Hyeyoung Kim, Yunkyoung Jo, Kiyoung Lee, Inhae Lee, and Yongsug Tak†
  • Department of Chemical Engineering, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon 402-751, Korea
E-mail:
초록
본 연구에서는 전해증착법과 열처리를 통하여 ITO 투명전극 위에 고밀도의 ZnO 막대구조를 형성하는 방법을 조사하였다. 증착과정에서 Zn(OH)2와 ZnO가 함께 형성되는 것을 고려할 때 전기화학적 ZnO 증착효율은 33% 이하를 나타내었다. 500 ℃열처리 후 ZnO는 (002)를 선택적으로 갖는 결정구조를 형성하며, 나노막대 구조의 성장속도는 0.986 μm/hr로 측정되었다. 그리고 전기화학적으로 제조한 ZnO 막대를 염료감응 태양전지의 전극으로 사용시 측정된 전지효율은 0.21%로서 태양전지용 전극으로서의 가능성을 확인하였다.
High density of ZnO nanorods were fabricated by electrochemical deposition and subsequent heat treatment. Formation of Zn(OH)2 and ZnO during electrodeposition indicated that the electrodeposition efficiency of ZnO was below 33%. ZnO rod has a preferential (200) growth plane after heat treatment at 500 ℃ and the growth rate of ZnO rod was measured to be 0.986 μm/hr. Dye sensitized solar cell(DSC) showed the efficiency of 0.21% when electrochemically prepared ZnO rod was used as an electrode. It suggests the possible application of ZnO rod structure in the DSC.
Keywords:Electrodeposition;ZnO;DSC;Heat Treatment
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