Facile synthesis of ZnO nanobullets/nanoflakes and their applications to dye-sensitized solar cells |
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| Authors: | Jixia MouWeiguang Zhang Jun FanHong Deng Wei Chen |
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| Affiliation: | a School of Chemistry & Environment, South China Normal University, Guangzhou 510006, China
b Wuhan National Laboratory for Optoelectronics and College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | In this paper we reported a successful synthesis of ZnO nanobullets/nanoflakes by a simple hydro/solvothermal method employing a mixture of water/ethylene glycol as the solvent, and zinc acetate as the zinc source. The final products were characterized by powder X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Raman scattering and photofluorescence spectra of the products were also investigated. ZnO with both nanobullets and nanoflakes nanostructures had been comparably studied as active photoanodes in dye-sensitized solar cell (DSSC) system, and the overall light-to-energy conversion efficiency of 1.93% has been achieved for nanobullets based DSSC, while that for ZnO nanoflakes based DSSC has been raised up to 3.64%. |
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| Keywords: | Hydro/solvothermal reaction ZnO nanostructures Photoanodes Dye-sensitized solar cells |
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