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Structural and multiband photoluminescent properties of a hierarchical ZnO/Si nanoheterostructure

  • Hai Jun Xu (a1), Lei Su (a1), Yu Fei Chan (a1) and Xiao Ming Sun (a1)

Hierarchical ZnO/Si nanoheterostructure was prepared by growing oriented ZnO nanowire bundles onto the top of nanoporous silicon pillar array (NSPA) via a self-catalytic thermal evaporation and vapor-phase transport method. Samples were carefully characterized using field emission scanning electron microscopy, x-ray diffraction, and luminescence spectroscopy. One ultraviolet, one blue-green, and two red emission bands were observed in ZnO/NSPA, and the emission mechanism is discussed by developing a model-based energy band diagram. The origins of the ultraviolet and blue-green photoluminescence (PL) bands were attributed to the emission from the band edge transition and surface states of oxygen vacancies of ZnO, while two red PL bands originated from NSPA and could be well explained by the quantum confinement-luminescence center model. The realization of such all solid and wide wavelength nanodevice might be both meaningful for developing new concept lighting devices and potentially extended to fabricate hierarchical Si-based nanoheterostructures in fabricating other optoelectronic nanodevices.

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1.Rohrmoser S., Baldauf J., Harley R.T., Lagoudakis P.G., Sapra S., and Eychmuller A.: Temperature dependence of exciton transfer in hybrid quantum well/nanocrystal heterostructures. Appl. Phys. Lett. 91, 092126 (2007).
2.Xiang J., Lu W., Hu Y., Wu Y., Yan H., and Lieber C.M.: Ge/Si nanowire heterostructures as high-performance field-effect transistors. Nature 441, 489 (2006).
3.Rauter P., Fromherz T., Vinh N.Q., Murdin B.N., Mussler G., Grutzmacher D., and Bauer G.: Continuous voltage tunability of intersubband relaxation times in coupled SiGe quantum well structures using ultrafast spectroscopy. Phys. Rev. Lett. 102, 147401 (2009).
4.Long H., Fang G., Huang H., Mo X., Xia W., Dong B., Meng X., and Zhao X.: Ultraviolet electroluminescence from ZnO/NiO-based heterojunction light-emitting diodes. Appl. Phys. Lett. 95, 013509 (2009).
5.Tzolov M., Chang B., Yin A., Straus D., Xu J.M., and Brown G.: Electronic transport in a controllably grown carbon nanotube-silicon heterojunction array. Phys. Rev. Lett. 92, 075505 (2004).
6.Yi W., Narayanamurti V., Lu H., Scarpulla M.A., and Gossard C.: Probing semiconductor band structures and heterojunction interface properties with ballistic carrier emission: GaAs/AlxGa1−xAs as a model system. Phys. Rev. B 81, 235325 (2010).
7.Jeong M.C., Oh B.Y., Ham M.H., Lee S.W., and Myoung J.M.: ZnO-nanowire-inserted GaN/ZnO heterojunction light-emitting diodes. Small 3, 568 (2007).
8.Tak Y., Hong J., Lee J.S., and Yong K.: Fabrication of ZnO/CdS core/shell nanowire arrays for efficient solar energy conversion. J. Mater. Chem. 19, 5945 (2009).
9.Hsieh Y., Chen H., Lin M., Shiu S., Hofmann M., Chern M., Jia X., Yang Y., Chang H., Huang H., Tseng S., Chen L., Chen K., Lin C., Liang C., and Chen Y.: Electroluminescence from ZnO/Si-nanotips light-emitting diodes. Nano Lett. 9, 1839 (2009).
10.Willander M., Nur O., Bano N., and Sultana K.: Zinc oxide nanorod-based heterostructures on solid and soft substrates for white-light-emitting diode applications. N. J. Phys. 11, 125020 (2009).
11.Chang Y.M., Jian S.R., Lee H.Y., Lin C.M., and Juang J.Y.: Enhanced visible photoluminescence from ultrathin ZnO films grown on Si-nanowires by atomic layer deposition. Nanotechnology 21, 385705 (2010).
12.Xu H.J. and Li X.J.: Silicon nanoporous pillar array: A silicon hierarchical structure with high light absorption and triple-band photoluminescence. Opt. Express 16, 2933 (2008).
13.Xu H.J. and Li X.J.: Preparation, structural and photoluminescent properties of CdS/silicon nanoporous pillar array. J. Phys. Condens. Matter 19, 056003 (2007).
14.Xu H.J. and Li X.J.: Rectification effect and electron transport property of CdS/Si nanoheterostructure based on silicon nanoporous pillar array. Appl. Phys. Lett. 93, 172105 (2008).
15.Yan X., Tay B.K., and Miele P.: Field emission from ordered carbon nanotube-ZnO heterojunction arrays. Carbon 46, 753 (2008).
16.Fan Z., Ruebusch D.J., Rathore A.J., Kapadia R., Ergen O., Leu P.W., and Javey A.: Challenges and prospects of nanopillar based solar cells. Nano Res. 2, 829 (2009).
17.Ku C.S., Huang J.M., Cheng C.Y., Lin C.M., and Lee H.Y.: Annealing effect on the optical response and interdiffusion of n-ZnO/p-Si (111) heterojunction grown by atomic layer deposition. Appl. Phys. Lett. 97, 181915 (2010).
18.Fonoberov V.A., Alim K.A., Balandin A.A., Xiu F.X., and Liu J.L.: Competition between exciton-phonon interaction and defects states in the 3.31 eV band in ZnO. Phys. Rev. B. 73, 165317 (2006).
19.Li C., Fang G.J., Su G.H., Li G.H., Wu X.G., and Zhao X.Z.: Synthesis and photoluminescence properties of vertically aligned ZnO nanorod-nanowall junction arrays on a ZnO-coated silicon substrate. Nanotechnology 17, 3740 (2006).
20.Kasai P.H.: Electron spin resonance studies of donors and acceptors in ZnO. Phys. Rev. 130, 989 (1963).
21.Dijken A.V., Meulenkamp E.A., Vanmaekelbergh D., and Meijerink A.: The kinetics of the radiative and nonradiative processes in nanocrystalline ZnO particles upon photoexcitation. J. Phys. Chem. B 104, 1715 (2000).
22.Liu Y.L., Liu Y.C., Yang H., Wang W.B., Ma J.G., Zhang J.Y., Lu Y.M., Shen D.Z., and Fan X.W.: The optical properties of ZnO films grown on porous Si templates. J. Phys. D Appl. Phys. 36, 2705 (2003).
23.Singh R.G., Singh F., Kanjilal D., Agarwal V., and Mehra R.M.: White light emission from chemically synthesized ZnO–porous silicon nanocomposite. J. Phys. D Appl. Phys. 42, 062002 (2009).
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Journal of Materials Research
  • ISSN: 0884-2914
  • EISSN: 2044-5326
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