Realizing super-long Cu2O nanowires arrays for high-efficient water splitting applications with a convenient approach

Nasori Nasori; Tianyi Dai; Xiaohao Jia; Agus Rubiyanto; Dawei Cao; Shengchun Qu; Zhanguo Wang; Zhijie Wang; Yong Lei

doi:10.1088/1674-4926/40/5/052701

Journals >Journal of Semiconductors >Volume 40 >Issue 5 >Page 052701 > Article

Journal of Semiconductors
Vol. 40, Issue 5, 052701 (2019)

Realizing super-long Cu₂O nanowires arrays for high-efficient water splitting applications with a convenient approach

Nasori Nasori^1、2, Tianyi Dai³, Xiaohao Jia^4、5, Agus Rubiyanto², Dawei Cao³, Shengchun Qu^4、5, Zhanguo Wang^4、5, Zhijie Wang^4、5, and Yong Lei¹

Author Affiliations

¹Institute of Physics & IMN MacroNano ® (ZIK), Ilmenau University of Technology, 98693 Ilmenau, Germany

²Physics Department, Faculty of Science, Institute of Technology Sepuluh Nopember, Surabaya, 6200, Indonesia

³Department of Physics, Zhenjiang Key Laboratory for Advanced Sensing Materials and Devices, Faculty of Science, Jiangsu University, Zhenjiang 212013, China

⁴Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China

⁵Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China

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DOI: 10.1088/1674-4926/40/5/052701 Cite this Article

Nasori Nasori, Tianyi Dai, Xiaohao Jia, Agus Rubiyanto, Dawei Cao, Shengchun Qu, Zhanguo Wang, Zhijie Wang, Yong Lei. Realizing super-long Cu₂O nanowires arrays for high-efficient water splitting applications with a convenient approach[J]. Journal of Semiconductors, 2019, 40(5): 052701 Copy Citation Text

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(Color online) Schematic illustration of the whole fabrication procedure of Cu2O NWs by AAO template: gold layer deposition (I), Ni electrodeposition (II), aluminum and barrier layer removal (III), Cu2O growth (IV), and template removal (V).

Fig. 1. (Color online) Schematic illustration of the whole fabrication procedure of Cu₂O NWs by AAO template: gold layer deposition (I), Ni electrodeposition (II), aluminum and barrier layer removal (III), Cu₂O growth (IV), and template removal (V).

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(Color online) SEM images of (a) the as-prepared AAO template, (b) Cu2O NWs (inset is cross-sectional SEM image of Cu2O NWs) and (c) Cu2O films. (d) The corresponding XRD patterns of Cu2O NWs and films (inset is mapping of Cu2O NWs).

Fig. 2. (Color online) SEM images of (a) the as-prepared AAO template, (b) Cu₂O NWs (inset is cross-sectional SEM image of Cu₂O NWs) and (c) Cu₂O films. (d) The corresponding XRD patterns of Cu₂O NWs and films (inset is mapping of Cu₂O NWs).

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Fig. 3. (Color online) (a) EQY spectra, (b) photocurrent–potential profiles, (c) time-dependent photocurrent density spectra and (d) impedance spectra of the Cu₂O NWs and films photoelectrode.

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Fig. 4. (Color online) (a) Top-view SEM image of Cu₂O NWs with Pt NPs. (b) Photocurrent–potential curves and (c) photocurrent-time profile at –0.3 V versus Ag/Ag and (d) EQY spectra of the photoelectrode based on Cu₂O NWs with Pt NPs. The inset is impendence spectra.

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Fig. 5. (Color online) (a) Schematic diagram of Cu₂O NWs/Pt photoelectrode and (b) energy band-gap spectrum of the Cu₂O NWs with/without Pt NPs.

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