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http://dx.doi.org/10.5012/bkcs.2012.33.7.2333

Synthesis and Light Emission from ZnO-Coated Silicon Nanorods  

Kim, Hyun-Su (Department of Materials science and Engineering, Inha University)
Jin, Chang-Hyun (Department of Materials science and Engineering, Inha University)
Park, Sung-Hoon (Department of Materials science and Engineering, Inha University)
Kim, Hyoun-Woo (Division of Materials Science and Engineering, Hanyang University)
Lee, Chong-Mu (Department of Materials science and Engineering, Inha University)
Publication Information
Bulletin of the Korean Chemical Society / v.33, no.7, 2012 , pp. 2333-2337 More about this Journal
Abstract
We report the synthesis and thermal annealing of Si-core/ZnO-shell nanorods using a two-step process comprising the metal-assisted electroless etching of Si and the sputter deposition of ZnO. Transmission electron microscopy and X-ray diffraction analysis showed that the cores of the annealed core-shell nanorods were single crystal diamond cubic-type Si, whereas the shells of the annealed core-shell nanorods were single crystal wurtzite-type ZnO. The PL spectra of Si nanorods consisted of a broad red emission band and a weaker blue emission band. The major emission band of Si nanorods was shifted from 700 nm (in the red region) to 440 nm (in the violet region) by ZnO coating. The violet emission of the core-shell nanorods was enhanced in intensity considerably by annealing in an oxidizing atmosphere. The origin of the PL enhancement by annealing is also discussed.
Keywords
Si-core/ZnO-shell nanorods; Electroless etching; Sputter deposition; Photoluminescence; Thermal annealing;
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1 Itoh, C.; Suzuki, T.; Itoh, N. Phys. Rev. 1989, 41, 3794.
2 Fauchet, P. M. J. Lumin. 1996, 70, 294.   DOI
3 Choi, H. J.; Johnson, J. C.; He, R.; Lee, S. K.; Kim, F.; Pauzauskie, P.; Goldberger, J.; Saykally, R. J.; Yang, P. J. Phys. Chem. B 2003, 107, 8721.   DOI   ScienceOn
4 Kim, H. W.; Shim, S. H.; Lee, C. Mater. Sci. Eng. B 2007, 136, 148.   DOI
5 Park, S.; Kim, H.; Lee, J. W.; Kim, H. W.; Lee, C. J. Kor. Phys. 2008, 53, 657.   DOI   ScienceOn
6 Kim, H. W.; Lee, J. W.; Kebede, M. A.; Kim, H. S.; Srinivasa, B.; Kong, M. H.; Lee, C. J. Nanosci. Nanotechnol. 2008, 8, 5715.   DOI
7 Park, S.; Jun, J.; Kim, H. W.; Lee, C. Solid State Commun. 2009, 149, 315.   DOI
8 Jun, J.; Jin, C.; Kim, H.; Kang, J.; Lee, C. Appl. Phys. A 2009, 96, 813.   DOI
9 Jin, C.; Kim, H.; Kim, H. W.; Lee, C. J. Lumin. 2010, 130, 516.   DOI
10 Sun, L.; He, H.; Liu, C.; Lu, Y.; Ye, Z. Cryst. Eng. Comm. 2011, 13, 2439.   DOI
11 Ma, D. D. D.; Lee, S. T.; Shinar, J. Appl. Phys. Lett. 2005, 87, 033107.   DOI
12 Canham, L. T. Appl. Phys. Lett. 1990, 57, 1046.   DOI
13 Lehmann, V.; Gosele, U. Appl. Phys. Lett. 1991, 58, 856.   DOI
14 Wu, C.; Qin, W.; Qin, G.; Zhao, D.; Zhang, J.; Xu, W.; Lin, H. Chem. Phys. Lett. 2003, 378, 368.   DOI
15 Dovrat, M.; Arad, N.; Zhang, X. H.; Lee, S. T.; Sa'ar, A. Phys. Stat. Sol. (a) 2007, 204, 1512.   DOI
16 Lee, S. T.; Wang, N.; Lee, C. S. Mater. Sci. Eng. A 2000, 286, 16.   DOI
17 Colli, A.; Hoffman, S.; Fasoli, A.; Ferrari, A. C.; Ducati, C.; Dunin-Borkowski, R. E.; Robertson, J. Appl. Phys. A 2006, 85, 247.   DOI
18 Koch, F.; Petrova-Koch, V.; Muschik, T. J. Lumin. 1993, 57, 271.   DOI
19 Duan, X.; Niu, C.; Sahi, V.; Chen, J.; Parce, J. W.; Empedocles, S.; Goldman, J. L. Nature 2003, 425, 274.   DOI
20 Cui, Y.; Zhong, Z.; Wang, D.; Wang, W. U.; Lieber, C. M. Nano Lett. 2003, 3, 149.   DOI   ScienceOn
21 Cullis, A. G.; Canham, L. T. Nature 1991, 353, 335.   DOI
22 Lin, V. S. Y.; Motesharei, K.; Dancil, K. P. S.; Sailor, M. J.; Ghadiri, M. R. Science 1997, 278, 840.   DOI
23 Morales, A. M.; Lieber, C. M. Science 1998, 279, 208.   DOI   ScienceOn
24 Stewart, M. P.; Buriak, J. M. Adv. Mater. 2000, 12, 859.   DOI   ScienceOn
25 Marsen, B.; Sattler, K. Phys. Rev. B 1999, 60, 11593.   DOI
26 Ma, D. D. D.; Lee, C. S.; Au, F. C. K.; Tong, S. Y.; Lee, S. T. Science 2003, 299, 1874.   DOI
27 Kim, N. H.; Kim, H. W.; Seoul, C.; Lee, C. Mater. Sci. Eng. B 2004, 111, 131.   DOI
28 Wu, Y.; Xiang, J.; Yang, C.; Lu, W.; Lieber, C. M. Nature 2004, 430, 61.   DOI   ScienceOn
29 Lauhon, L. J.; Gudiksen, M. S.; Wang, D.; Lieber, C. M. Epitaxial Nature 2002, 420, 57.   DOI   ScienceOn