Abstract
In this study, pulsed laser ablation, online annealing, and following size classification using a differential mobility analyzer (DMA) were employed to fabricate quantum dots (QDs) of zinc oxide (ZnO). The irregularly shaped ZnO particles were obtained at annealing temperature less than 873 K, which gradually transformed into spherical QDs with increasing the annealing temperature. Finally, ZnO QDs with narrow size distribution having spherical shapes were successfully obtained at temperatures above 1173 K under the DMA classification at a nominal size of 10 nm. TEM observation demonstrated that the ZnO QDs obtained by this process were well-crystallized single crystallites with a wurtzite structure. Further, ZnO QDs with average sizes in the range of 4.8–8.1 nm were successfully fabricated by reducing the specified sizes of DMA. These features of the fabricated ZnO QDs are favorable for investigation of intrinsic quantum size effect in ZnO.
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References
Borgohain K, Mahamuni S (1998) Luminescence behavior of chemically grown ZnO quantum dots. Semicond Sci Technol 13:1154–1157. doi:10.1088/0268-1242/13/10/017
Chang HJ, Lu CZ, Wang Y, Son CS, Kim SI, Kim YH et al (2004) Optical properties of ZnO nanocrystals synthesized by using sol-gel method. J Korean Phys Soc 45:959–962
Chatterjee A, Shen CH, Ganguly A, Chen LC, Hsu CW, Hwang JY et al (2004) Strong room-temperature UV emission of nanocrystalline ZnO films derived from a polymeric solution. Chem Phys Lett 391:278–282. doi:10.1016/j.cplett.2004.05.021
Chen DR, Pui DYH (1997) Numerical modeling of the performance of differential mobility analyzers for nanometer aerosol measurements. J Aerosol Sci 28:985–1004. doi:10.1016/S0021-8502(97)00004-9
Chen DR, Pui DYH, Hummes D, Fissan H, Quant FR, Sem GJ (1998) Design and evaluation of a nanometer aerosol differential mobility analyzer (Nano-DMA). J Aerosol Sci 29:497–509. doi:10.1016/S0021-8502(97)10018-0
Chik H, Liang J, Cloutier SG, Kouklin N, Xu JM (2004) Periodic array of uniform ZnO nanorods by second-order self-assembly. Appl Phys Lett 84:3376–3378. doi:10.1063/1.1728298
Deppert K, Bovin JO, Malm JO, Samuelson L (1996) A new method to fabricate size-selected compound semiconductor nanocrystals: aerotaxy. J Cryst Growth 169:13–19. doi:10.1016/0022-0248(96)00342-9
Eom SH, Yu YM, Choi YD, Kim CS (2005) Optical characterization of ZnO whiskers grown without catalyst by hot wall epitaxy method. J Cryst Growth 284:166–171. doi:10.1016/j.jcrysgro.2005.07.006
Fah CP, Xue J, Wang J (2002) Nanosized zinc-oxide particles derived from mechanical activation of Zn5(NO3)2(OH)8 · 2H2O in sodium chloride. J Am Ceram Soc 85:273–275
Flagan RC (1998) History of electrical aerosol measurements. Aerosol Sci Technol 28:301–380. doi:10.1080/02786829808965530
Fuchs NA (1963) On the stationary charge distribution on aerosol particles in a bipolar ionic atmosphere. Geofis Pura Appl 56:185–193. doi:10.1007/BF01993343
Guo L, Yang S, Yang C, Yu P, Wang J, Ge W et al (2000a) Synthesis and characterization of poly(vinylpyrrolidone)-modified zinc oxide nanoparticles. Chem Mater 12:2268–2274. doi:10.1021/cm9907817
Guo L, Yang S, Yang P, Yu P, Wang J, Ge W et al (2000b) Highly monodisperse polymer-capped ZnO nanoparticles: preparation and optical properties. Appl Phys Lett 76:2901–2903. doi:10.1063/1.126511
Hirasawa M, Orii T, Seto T (2005) Synthesis of visible-light emitting Si nanoparticles by laser nano-prototyping. J Aerosol Res 20:103–107
Katagiri T, Seol KS, Takeuchi K, Ohki Y (2004) Crystallization of monodispersed lead zirconate titanate nanoparticles produced by laser ablation. Jpn J Appl Phys 43:4419–4423. doi:10.1143/JJAP.43.4419
Kennedy MK, Kruis FE, Fissan H, Mehta BR, Stappert S, Dumpich G (2003) Tailored nanoparticles films from monosized tin oxide nanocrystals: particle synthesis, film formation, and size-dependent gas-sensing properties. J Appl Phys 93:551–560. doi:10.1063/1.1525855
Kim KK, Koguchi N, Ok YW, Seong TY, Park SJ (2004) Fabrication of ZnO quantum dots embedded in an amorphous oxide layer. Appl Phys Lett 84:3810–3812. doi:10.1063/1.1741030
Knutson EO, Whitby KT (1975) Aerosol classification by electric mobility: apparatus, theory, and application. J Aerosol Sci 6:443–451. doi:10.1016/0021-8502(75)90060-9
Lu JG, Ye ZZ, Huang JY, Zhu LP, Zhao BH, Wang ZL et al (2006a) ZnO quantum dots synthesized by a vapor phase transport process. Appl Phys Lett 88:063110. doi:10.1063/1.2172154
Lu JG, Ye ZZ, Zhang YZ, Liang QL, Fujita SZ, Wang ZL (2006b) Self-assembled ZnO quantum dots with tunable optical properties. Appl Phys Lett 89:023122. doi:10.1063/1.2221892
Mahamuni S, Borgohain K, Bendre BS, Leppert VJ, Risbud SH (1999) Spectroscopic and structural characterization of electrochemically grown ZnO quantum dots. J Appl Phys 85:2861–2865. doi:10.1063/1.369049
Nakaso K, Fujimoto T, Seto T, Shimada M, Okuyama K (2001) Size distribution change of titania nano-particle agglomerates generated by gas phase reaction, agglomeration, and sintering. Aerosol Sci Technol 35:929–947. doi:10.1080/02786820126857
Newton MC, Firth S, Matsuura T, Warburton PA (2006) Synthesis and characterization of zinc oxide tetrapod nanocrystals. J Phys 26:251–255. doi:10.1088/1742-6596/26/1/060
Park YS, Reynolds DC (1967) Growth of ZnO single crystals. J Appl Phys 38:756–760. doi:10.1063/1.1709407
Polarz S, Roy A, Merz M, Halm S, Schroder D, Schneider L et al (2005) Chemical vapor synthesis of size-selected zinc oxide nanoparticles. Small 1:540–552. doi:10.1002/smll.200400085
Seol KS, Tsutatani Y, Camata RP, Yabumoto J, Isomura S, Okada Y et al (2000) A differential mobility analyzer and a faraday cup electrometer for operation at 200–930 Pa pressure. J Aerosol Sci 31:1389–1395. doi:10.1016/S0021-8502(00)00037-9
Seol KS, Tsutatani Y, Fujimoto T, Okada Y, Nagamoto H (2001) New in situ measurement method for nanoparticles formed in a radio frequency plasma-enhanced chemical vapor deposition. J Vac Sci Technol B 19:1998–2000. doi:10.1116/1.1404979
Seol KS, Tomita S, Takeuchi K, Miyagawa T, Katagiri T, Ohki Y (2002a) Gas-phase production of monodisperse lead titanate nanoparticles. Appl Phys Lett 81:1893–1895. doi:10.1063/1.1505744
Seol KS, Takeuchi K, Miyagawa T, Ohki Y (2002b) Characteristics of nanoparticles formed during pulsed laser ablation of SrBi2Ta2O9. Jpn J Appl Phys 41:5654–5658. doi:10.1143/JJAP.41.5654
Seol KS, Ohki Y, Takeuchi K (2004) Recent development of differential mobility analyzer for size-classification of nanoparticles and their applications to nanotechnologies. KIEE Int Trans EA 4C:39–44
Seto T, Shimada M, Okuyama K (1995) Evaluation of sintering of nanometer-sized titania using aerosol method. Aerosol Sci Technol 23:183–200. doi:10.1080/02786829508965303
Suzuki N, Makino T, Yamada Y, Yoshita T, Seto T (2001) Monodispersed, nonagglomerated silicon nanocrystallites. Appl Phys Lett 78:2043–2045. doi:10.1063/1.1360236
Suzuki K, Kageyama K, Takagi H, Sakabe Y, Takeuchi K (2008) Fabrication of monodispersed barium titanate nanoparticles with narrow size distribution. J Am Ceram Soc 75:1721–1724. doi:10.1111/j.1551-2916.2008.02345.x
Ueda M, Kim SW, Fujita S, Fujita S (2004) Focused ion beam patterning for fabrication of periodical two-dimensional zinc oxide nanodot arrays. Jpn J Appl Phys 43:L652–L654. doi:10.1143/JJAP.43.L652
Wiedensohler A (1988) An approximation of the bipolar charge distribution for particles in the submicron size range. J Aerosol Sci 19:387–389. doi:10.1016/0021-8502(88)90278-9
Yadav HK, Sreenivas K, Gupta V, Singh SP, Katiyar RS (2007) Effect of surface defects on the visible emission from ZnO nanoparticles. J Mater Res 22:2404–2409. doi:10.1557/jmr.2007.0321
Yu WD, Li XM, Gao XD (2004) Self-catalytic synthesis and photoluminescence of ZnO nanostructures on ZnO nanocrystal substrates. Appl Phys Lett 84:2658–2660. doi:10.1063/1.1695097
Zhang BP, Liu CY, Segawa Y, Kashiwaba Y, Haga K (2005) Free excitonic transition of zinc oxide nanocrystalline films formed on amorphous substrates by metalorganic chemical vapor deposition. Thin Solid Films 474:165–168. doi:10.1016/j.tsf.2004.08.123
Zhao D, Liu Y, Shen D, Lu Y, Zhang L, Fan X (2003) Structure and photoluminescence properties of ZnO microrods. J Appl Phys 94:5605–5608. doi:10.1063/1.1615703
Zhou H, Alves H, Hofmann DM, Kriegseis W, Meyer BK, Kaczmarczyk G et al (2002) Behind the weak excitonic emission of ZnO quantum dots: ZnO/Zn(OH)2 core-shell structure. Appl Phys Lett 80:210–212. doi:10.1063/1.1432763
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Suzuki, K., Inoguchi, M., Kageyama, K. et al. Well-crystallized zinc oxide quantum dots with narrow size distribution. J Nanopart Res 11, 1349–1360 (2009). https://doi.org/10.1007/s11051-008-9521-x
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DOI: https://doi.org/10.1007/s11051-008-9521-x