화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.34, No.2, 495-499, February, 2017
DOI10.1007/s11814-016-0283-3  Export Citation
Polyol-mediated synthesis of ZnO nanoparticle-assembled hollow spheres/nanorods and their photoanode performances
Soon Wook Kim, Tri Khoa Nguyen, Doan Van Thuan, Dinh Khoi Dang1, Seung Hyun Hur1, Eui Jung Kim1, †, and Sung Hong Hahn
  • Department of Physics and Energy Harvest-storage Research Center, University of Ulsan, Ulsan 44610, Korea
  • 1Department of Chemical Engineering, University of Ulsan, Ulsan 44610, Korea
E-mail:
ZnO nanoparticle-assembled hollow spheres (raspberry-like) and elliptical nanorods (rice-like) were synthesized via a facile polyol process. Employing ethylene glycol as a polyol led to a ZnO nanoparticle-assembled hollow sphere structure, while diethylene glycol resulted in an elliptical nanorod structure. The ZnO hollow spheres had a higher Brunauer-Emmett-Teller (BET) surface area, better dye adsorption, more incident light trapping, and lower defect density than the ZnO elliptical nanorods. The ZnO hollow sphere-based dye-sensitized solar cells (DSSCs) exhibited a three-times higher current density than the ZnO elliptical nanorod-based DSSCs.
Keywords:ZnO Hollow Spheres;ZnO Elliptical Nanorods;Polyol Process;Dye-sensitized Solar Cells
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