Abstract
ZnO nanorods were grown homogenously and vertically on ITO using electrochemical techniques. The physical properties of the nanorods were characterized using SEM and optical absorption. The electrical conductivity, deduced using STM at different tip heights, and was found to be 20 Ω-cm with a carrier concentration of 3×1015 cm−3.The results show that electrochemically grown ZnO nanorods have electrical properties suitable for use in electronic devices such as solar cells and transistors. A-Si:H p-i-n solar cells were then deposited after the fabrication on the ZnO on ITO-coated substrates. The results show that the textured solar cell performance was 30% higher than the planar solar cell.
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References
F. Xu and L. Sun, Energy & Environmental Science 4, no. 3 (2011): 818.
H. Zhou, A. Colli, A. Ahnood, Y. Yang, N. Rupesinghe, T. Butler, I. Haneef, P. Hiralal, A. Nathan, G.A.J. Amaratunga, Adv. Materials, 21, 38–39, 3919-3923, (2009)
D. Pradhan and K. Tong Leung, Langmuir 24, no. 17 (2008): 9707–9716.
V. Srikant and D. R. Clarke, Journal of Applied Physics 81 (1997): 6357.
C. Uher, R. L. Hockey, and E. Ben-Jacob, Phys Rev B 35 (1987) 4483–4488
S. Paulson, A. Helser, M. B Nardelli, R. M. Taylor, M. Falvo, R. Superfine, S. Washburn, Science 290, (2000) 1742–1744
E. Schlenker, A. Bakin, B. Postels, A. C. Mofor, H.-H. Wehmann, T. Weimann, P. Hinze, and A. Waag, Phys. Stat. Sol. B 244, (2007) 1473–1477
Y. W. Heo, L. C. Tien, D. P. Norton, B. S. Kang, F. Ren, B. P. Gila, S. J. Peartona, Appl Phys Lett 85, (2004) 2002–2004
Y.-J. Ma, Z. Zhang, F. Zhou, L. Lu, A. Jinand C. Gu, Nanotechnology 16 (2005) 746–749
Q.H. Li, Q. Wan, Y.X. Liang, and T.H. Wang, Appl Phys Lett 84, (2004) 4556–4558
C. Díaz-Guerra and J. Piqueras, “Journal of Applied Physics, vol. 86, no. 4, p. 1874, Aug. 1999.
S. S. Hegedus and W. N. Shafarman, Research and Applications, vol. 12, no. 2-3, pp. 155–176, Mar. 2004.
R. Dewan and D. Knipp, Journal of Applied Physics, vol. 106, no. 7, p. 074901, Oct. 2009.
Acknowledgment
The authors would like to thank Dr Steve Hudziak, University College London for the STM manipulation. This work was supported in part by EU-FP7 Project ORAMA CP-IP 246334-2 and the Royal Society Wolfson Research Merit Award, UK.
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Suzuki, Y., Ibheanacho, B., Ahnood, A. et al. Electrical Characterization of Electrochemically Grown ZnO Nanorods using STM. MRS Online Proceedings Library 1391, 71–75 (2012). https://doi.org/10.1557/opl.2012.801
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DOI: https://doi.org/10.1557/opl.2012.801