Advertisement

Russian Journal of Electrochemistry

, Volume 55, Issue 5, pp 401–406 | Cite as

Preparation and Photoelectrochemical Performances of CuSCN Thin Films Influenced by Electrodeposition Potential

  • Zhen Wang
  • Da ChenEmail author
  • Fang Wang
  • Laishun Qin
  • Liqun Bai
  • Xingguo Sun
  • Yuexiang HuangEmail author
Article
  • 1 Downloads

Abstract

In this work, p-type CuSCN nanorod thin films were successfully prepared on the fluorine-doped tin oxide (FTO) conductive substrate by a simple electrochemical deposition at different deposition potentials (i.e., −0.1, −0.2, −0.3, −0.4 V), and the influence of deposition potential on the microstructural and photoelectrochemical properties of the prepared CuSCN thin films was then explored. The prepared CuSCN films were nanorod arrays with a rhombohedral β-CuSCN structure, and the better CuSCN crystal structure was achieved when deposited at −0.4 V. The p-type characteristic of the electrodeposited CuSCN thin films were verified by Mott–Schottky measurements. The CuSCN nanorods thin films deposited at −0.2, −0.3, and −0.4 V produced ten times higher photocurrent intensities than the CuSCN thin film deposited at −0.1 V, and the CuSCN thin film deposited at −0.4 V exhibited the best photoelectrochemical performance. The enhanced photoelectrochemical performance of the CuSCN thin film deposited at −0.4 V could be attributed to the better crystal structure, the more charge carrier concentration as well as the more efficient charge separation and migration. This work offers a facile approach to prepare the p-type CuSCN nanorod thin films through electrochemical deposition, and regulate their photoelectrochemical performance by controlling the deposition potential.

Keywords

p-type CuSCN thin films electrochemical deposition photoelectrochemical performance 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Sullivan, I., Zoellner, B., and Maggard, P.A., Copper(I)-based P-type oxides for photoelectrochemical and photovoltaic solar energy conversion, Chem. Mater., 2016, vol. 28, p. 5999.CrossRefGoogle Scholar
  2. 2.
    Wang, Z., Nayak, P.K., Caraveo-Frescas, J.A., and Alshareef, H.N., Recent developments in p-type oxide semiconductor materials and devices, Adv. Mater., 2016, vol. 28, p. 3831.CrossRefGoogle Scholar
  3. 3.
    Gertman, R., Harush, A., and Visoly-Fisher, I., Nano-structured photocathodes for infrared photodetectors and photovoltaics, J. Phys. Chem. C, 2015, vol. 119, p. 1683.CrossRefGoogle Scholar
  4. 4.
    Wijeyasinghe, N. and Anthopoulos, T.D., Copper(I) thiocyanate (CuSCN) as a hole-transport material for large-area opto/electronics, Semicond. Sci. Technol., 2015, vol. 30, p. 193.CrossRefGoogle Scholar
  5. 5.
    Yaacobi-Gross, N., Treat, N.D., Pattanasattayavong, P., Faber, H., Perumal, A.K., and Stingelin, N., High-efficiency organic photovoltaic cells based on the solu-tion-processable hole transporting interlayer copper thio-cyanate (CuSCN) as a replacement for PEDOT:PSS, Adv. Energy Mater., 2015, vol. 5, p. 1401529.CrossRefGoogle Scholar
  6. 6.
    Gao, X.D., Li, X.M., Yu, W.D., Qiu, J.J., and Gan, X.Y., Room-temperature deposition of nanocrystalline CuSCN film by the modified successive ionic layer adsorption and reaction method, Thin Solid Films, 2008, vol. 517, p. 554.CrossRefGoogle Scholar
  7. 7.
    Kumara, G.R.R.A., Konno, A., Senadeera, G.K.R., Jayaweera, P.V.V., De Silva, D.B.R.A., and Tennakone, K., Dye-sensitized solar cell with the hole collector p-CuSCN deposited from a solution in n-propyl sulphide, Sol. Energy Mater. Sol. Cells, 2001, vol. 69, p. 195.CrossRefGoogle Scholar
  8. 8.
    Chappaz-Gillot, C., Salazar, R., Berson, S., and Ivanova, V., Room temperature template-free electrode-position of CuSCN nanowires, Electrochem. Commun., 2012, vol. 24, p. 1.CrossRefGoogle Scholar
  9. 9.
    Chappaz-Gillot, C., Salazar, R., Berson, S., and Ivanova, V., Insights into CuSCN nanowire electrodeposition on flexible substrates, Electrochim. Acta, 2013, vol. 110, p. 375.CrossRefGoogle Scholar
  10. 10.
    Gan, X., Liu, K., Du, X., Guo, L., and Liu, H.X., Bath temperature and deposition potential dependences of CuSCN nanorod arrays prepared by electrochemical deposition, J. Mater. Sci., 2015, vol. 50, p. 7866.CrossRefGoogle Scholar
  11. 11.
    Tennakone, K. and Kumarasinghe, A.R., Deposition of thin polycrystalline films of cuprous thiocyanate on conducting glass and photoelectrochemical dye-sensi-tization, Thin Solid Films, 1995, vol. 261, p. 307.CrossRefGoogle Scholar
  12. 12.
    Wu, W., Jin, Z., Hua, Z., Fu, Y., and Qiu, J., Growth mechanisms of CuSCN films electrodeposited on ITO in EDTA-chelated copper(II) and KSCN aqueous solution, Electrochim. Acta, 2005, vol. 50, p. 2343.CrossRefGoogle Scholar
  13. 13.
    Huang, M.C., Wang, T.H., Tseng, Y.T., Wu, C.C., Lin, J.C., and Hsu, W.Y., Influence of annealing on microstructural and photoelectrochemical characteristics of CuSCN thin films via electrochemical process, J. Alloy Compd, 2015, vol. 622, p. 669.CrossRefGoogle Scholar
  14. 14.
    Fabregat, S.F., Garcia, B.G., Bisquert, J., Bogdanoff, P., and Zaban, A., Mott Schottky analysis of nanoporous semiconductor electrodes in dielectric state deposited on SnO2(F) conducting substrates, J. Electrochem. Soc., 2003, vol. 150, p. 293.CrossRefGoogle Scholar
  15. 15.
    Morrison, S.R., Electrochemistry at Semiconductor and Oxidized Metal Electrodes, New York: Plenum Press, 1980, chapter 4.CrossRefGoogle Scholar
  16. 16.
    Upadhyay, S., Sharma, D., Satsangi, V.R., Shrivastav, R., Waghmare, U.V., and Dass, S., Spray pyrolytically deposited Fe-doped Cu2O thin films for solar hydrogen generation: experiments & first-principles analysis, Mater. Chem. Phys., 2015, vol. 160, p. 32.CrossRefGoogle Scholar
  17. 17.
    Harrington, D.A. and Driessche, P.V.D., Mechanism and equivalent circuits in electrochemical impedance spectroscopy, Electrochim. Acta, 2011, vol. 56, p. 8005.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringChina Jiliang UniversityHangzhou, ZhejiangP.R. China
  2. 2.Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry BiomassZhejiang A & F UniversityLin’an, Zhejiang ProvinceChina

Personalised recommendations