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Ultra rapid direct heating synthesis of ZnO nanorods with improved light trapping from stacked photoanodes for high efficiency photocatalytic water splitting
Lee, Wei Cheat1; Fang, Yuanxing1; Commandeur, Daniel1; Qian, Rong2; Al-Abdullah, Zainab T Y1; Chen, Qiao1
2017
Source PublicationNanotechnology
ISSN09574484
Volume28Issue:35
AbstractAn ultra rapid growth method for vertically aligned ZnO nanorod (NR) thin films on metal meshes was developed using a direct heating synthesis technique. A typical NR growth rate of 10 μm h-1was achieved. The effects of the applied heating power and growth duration on the morphologies of ZnO nanostructures were examined. High density surface defects were formed on the ZnO NRs, which is responsible for slow charge recombination and high efficiency in the photoelectrochemical (PEC) water splitting process. The light absorption for a photoanode was significantly improved by light trapping using a 3D stacked metal mesh photoanode structure. With the internal reflection between the stacked photoanodes, the final light leakage is minimised. The light absorption in the stacked photoanode is improved without restricting the charge transportation. In comparison with a single mesh photoanode and a chemical bath deposition grown flat photoanode, the PEC water splitting efficiency from the stacked photoanode was increased by a factor of 2.6 and 6.1 respectively. © 2017 IOP Publishing Ltd.
DOI10.1088/1361-6528/aa7c7c
EI Accession Number20173304049717
EI KeywordsII-VI semiconductors
EI Classification Number702.1 Electric Batteries - 723.5 Computer Applications - 741.1 Light/Optics - 761 Nanotechnology - 801.4.1 Electrochemistry - 804.2 Inorganic Compounds - 913.1 Production Engineering - 933 Solid State Physics - 951 Materials Science
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25785
Collection中国科学院上海硅酸盐研究所
Affiliation1.Chemistry Department, School of Life Sciences, University of Sussex, Brighton; BN1 9QJ, United Kingdom;
2.National Center for Inorganic Mass Spectrometry in Shanghai, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai; 200050, China
Recommended Citation
GB/T 7714
Lee, Wei Cheat,Fang, Yuanxing,Commandeur, Daniel,et al. Ultra rapid direct heating synthesis of ZnO nanorods with improved light trapping from stacked photoanodes for high efficiency photocatalytic water splitting[J]. Nanotechnology,2017,28(35).
APA Lee, Wei Cheat,Fang, Yuanxing,Commandeur, Daniel,Qian, Rong,Al-Abdullah, Zainab T Y,&Chen, Qiao.(2017).Ultra rapid direct heating synthesis of ZnO nanorods with improved light trapping from stacked photoanodes for high efficiency photocatalytic water splitting.Nanotechnology,28(35).
MLA Lee, Wei Cheat,et al."Ultra rapid direct heating synthesis of ZnO nanorods with improved light trapping from stacked photoanodes for high efficiency photocatalytic water splitting".Nanotechnology 28.35(2017).
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