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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 9 — May. 6, 2013
  • pp: 11448–11456

Single cuprous oxide films synthesized by radical oxidation at low temperature for PV application

Zhigang Zang, Atsushi Nakamura, and Jiro Temmyo  »View Author Affiliations

Optics Express, Vol. 21, Issue 9, pp. 11448-11456 (2013)

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Cuprous oxide (Cu2O) films synthesis by radical oxidation with nitrogen (N2) plasma treatment and different RF power at low temperature (500°C) are studied in this paper. X-ray diffraction measurements show that synthesized Cu2O thin films grow on c-sapphire substrate with preferred (111) orientation. With nitrogen (N2) plasma treatment, the optical bandgap energy is increased from 1.69 to 2.42 eV, when N2 plasma treatment time is increased from 0 min to 40 min. Although the hole density is increased from 1014 to 1015 cm−3 and the resistivity is decreased from 1879 to 780Ωcm after N2 plasma treatment, the performance of Cu2O films is poorer compared to that of Cu2O using RF power of 0. The fabricated ZnO/Cu2O solar cells based on Cu2O films with RF power of 0 W show a good rectifying behavior with a efficiency of 0.02%, an open-circuit voltage of 0.1 V, and a fill factor of 24%.

© 2013 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(310.0310) Thin films : Thin films
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Thin Films

Original Manuscript: November 27, 2012
Revised Manuscript: February 11, 2013
Manuscript Accepted: February 18, 2013
Published: May 3, 2013

Zhigang Zang, Atsushi Nakamura, and Jiro Temmyo, "Single cuprous oxide films synthesized by radical oxidation at low temperature for PV application," Opt. Express 21, 11448-11456 (2013)

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  1. B. S. Li, K. Akimoto, and A. Shen, “Growth of Cu2O thin films with high hole mobility by introducing a low-temperature buffer layer,” J. Cryst. Growth311(4), 1102–1105 (2009). [CrossRef]
  2. S. S. Jeong, A. Mittiga, E. Salza, A. Masci, and S. Passerini, “Electrodeposited ZnO/Cu2O heterojunction solar cells,” Electrochim. Acta53(5), 2226–2231 (2008). [CrossRef]
  3. I. Grozdanov, “Electroless chemical deposition technique for Cu2O thin films,” Mater. Lett.19(5-6), 281–285 (1994). [CrossRef]
  4. P. Wang, X. H. Zhao, and B. J. Li, “ZnO-coated CuO nanowire arrays: fabrications, optoelectronic properties, and photovoltaic applications,” Opt. Express19(12), 11271–11279 (2011). [CrossRef] [PubMed]
  5. A. Mittiga, E. Salza, F. Sarto, M. Tucci, and R. Vasanthi, “Heterojunction solar cell with 2% efficiency based on a Cu2O substrate,” Appl. Phys. Lett.88(16), 163502 (2006). [CrossRef]
  6. T. Minami, T. Miyata, K. Ihara, Y. Minamino, and S. Tsukada, “Effect of ZnO film deposition methods on the photovoltaic properties of ZnO–Cu2O heterojunctiondevices,” Thin Solid Films494(1–2), 47–52 (2006). [CrossRef]
  7. A. O. Musa, T. Akomolafe, and M. Carter, “Production of cuprousoxide, asolarcell material, by thermal oxidation and a study of its physical and electrical properties,” Sol. Energy Mater. Sol. Cells51(3–4), 305–316 (1998). [CrossRef]
  8. V. Figueiredo, E. Elangovan, G. Goncalves, P. Barquinha, L. Pereira, N. Franco, E. Alves, R. Martins, and E. Fortunato, “Effect of post-annealing on the properties of copper oxide thin films obtained from the oxidation of evaporated metallic copper,” Appl. Surf. Sci.254(13), 3949–3954 (2008). [CrossRef]
  9. S. H. Jeong and E. S. Aydil, “Heteroepitaxial growth of Cu2O thin film on ZnO by metal organic chemical vapor deposition,” J. Cryst. Growth311(17), 4188–4192 (2009). [CrossRef]
  10. S. Kang, S. Hong, J. Choi, J. Kim, I. Hwang, I. Byun, Y. Kim, W. Kim, and B. Park, “Layer-to-island growth of electrodeposited Cu2O films and filamentary switching in single-channeled grain boundaries,” J. Appl. Phys.107(5), 053704 (2010). [CrossRef]
  11. L. Du and H. Wang, “Infrared laser induced lateral photovoltaic effect observed in Cu2O nanoscale film,” Opt. Express18(9), 9113–9118 (2010). [CrossRef] [PubMed]
  12. C. C. Ooi and G. K. L. Goh, “Formation of cuprous oxide films via oxygen plasma,” Thin Solid Films518(24), e98–e100 (2010). [CrossRef]
  13. H. J. Li, C. Y. Pu, C. Y. Ma, S. Li, W. J. Dong, S. Y. Bao, and Q. Y. Zhang, “Growth behavior and optical properties of N doped Cu2O films,” Thin Solid Films520(1), 212–216 (2011). [CrossRef]
  14. D. Mardare and G. I. Rusu, “The influence of heat treatment on the optical properties of titanium oxide thin films,” Mater. Lett.56(3), 210–214 (2002). [CrossRef]
  15. W. Seiler, E. Millon, J. Perrière, R. Benzerga, and C. Boulmer-Leborgne, “Epitaxial growth of copper oxide films by reactive cross-beam pulsed-laser deposition,” J. Cryst. Growth311(12), 3352–3358 (2009). [CrossRef]
  16. Y. Nakano, S. Saeki, and T. Morikawa, “Optical bandgap widening of p-type Cu2O films by nitrogen doping,” Appl. Phys. Lett.94(2), 022111 (2009). [CrossRef]
  17. S. H. Jeong, S. H. Song, K. Nagaich, S. A. Campbell, and E. S. Aydil, “An analysis of temperature dependent current-voltage characteristics of Cu2O/ZnO heterojunction solar cells,” Thin Solid Films519(19), 6613–6619 (2011). [CrossRef]
  18. B. Balamurugan and B. R. Mehta, “Optical and structural properties of nanocrystalline copper oxide thin films prepared by activated reactive evaporation,” Thin Solid Films396(1–2), 90–96 (2001). [CrossRef]

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