Polyol-mediated synthesis of ZnO nanoparticle-assembled hollow spheres/nanorods and their photoanode performances

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 st...

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Bibliographic Details
Published in:The Korean journal of chemical engineering 2017, 34(2), 203, pp.495-499
Main Authors: Kim, Soon Wook, Nguyen, Tri Khoa, Van Thuan, Doan, Dang, Dinh Khoi, Hur, Seung Hyun, Kim, Eui Jung, Hahn, Sung Hong
Format: Article
Language:English
Subjects:
Adsorption
Biotechnology
Catalysis
Chemistry
Chemistry and Materials Science
Electronic
Ethylene glycol
Industrial Chemistry/Chemical Engineering
Inorganic
Materials (Organic
Materials Science
Nanoparticles
Nanorods
Solar cells
Surface area
Thin Films
Zinc oxide
화학공학
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Summary: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.
ISSN:0256-1115
1975-7220
DOI:10.1007/s11814-016-0283-3