Tuning of crystal quality and optical properties of hydrothermally synthesized ZnO nanorods by magnetic field
作者： Y.F. Chiang , S.M. Kuo , C.P. Liu , J.C.A. Huang , W.T. Yao
DOI: 10.1016/J.MATCHEMPHYS.2014.09.028
关键词:
摘要: Abstract This study systematically investigates the effects of magnetic field on defects suppression in hydrothermally synthesized ZnO nanorods. A clear correlation between crystalline quality and field-induced defect-related emission intensity is demonstrated. The density nanorods reduced by increasing strength applied field, drastically reducing visible photoluminescence. mechanism emissions explained a model-based analysis paths electrical currents resulting Lorentz force related neighboring pair rolling cellular patterns that are generated from Rayleigh–Benard convection. work provides new means controlling nanomaterials, improving such materials, thereby adjusting their light-emitting properties.
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sci-hub.se 参考文章(19)
Lori E. Greene, Matt Law, Joshua Goldberger, Franklin Kim, Justin C. Johnson, Yanfeng Zhang, Richard J. Saykally, Peidong Yang, Low-temperature wafer-scale production of ZnO nanowire arrays. Angewandte Chemie. ,vol. 42, pp. 3031- 3034 ,(2003) , 10.1002/ANIE.200351461
Ralph Möiner, Ulrich Müller, A numerical investigation of three-dimensional magnetoconvection in rectangular cavities International Journal of Heat and Mass Transfer. ,vol. 42, pp. 1111- 1121 ,(1999) , 10.1016/S0017-9310(98)00115-X
L. Vayssieres, Growth of Arrayed Nanorods and Nanowires of ZnO from Aqueous Solutions Advanced Materials. ,vol. 15, pp. 464- 466 ,(2003) , 10.1002/ADMA.200390108
Jose A. Gavira, Juan Ma. García-Ruiz, Effects of a Magnetic Field on Lysozyme Crystal Nucleation and Growth in a Diffusive Environment Crystal Growth & Design. ,vol. 9, pp. 2610- 2615 ,(2009) , 10.1021/CG8008688
Bixia Lin, Zhuxi Fu, Yunbo Jia, Green luminescent center in undoped zinc oxide films deposited on silicon substrates Applied Physics Letters. ,vol. 79, pp. 943- 945 ,(2001) , 10.1063/1.1394173
Bin Liu, Hua Chun Zeng, Hydrothermal synthesis of ZnO nanorods in the diameter regime of 50 nm. Journal of the American Chemical Society. ,vol. 125, pp. 4430- 4431 ,(2003) , 10.1021/JA0299452
D Li, YH Leung, AB Djurišić, ZT Liu, MH Xie, SL Shi, SJ Xu, WK Chan, None, Different origins of visible luminescence in ZnO nanostructures fabricated by the chemical and evaporation methods Applied Physics Letters. ,vol. 85, pp. 1601- 1603 ,(2004) , 10.1063/1.1786375
K. Vanheusden, C. H. Seager, W. L. Warren, D. R. Tallant, J. A. Voigt, Correlation between photoluminescence and oxygen vacancies in ZnO phosphors Applied Physics Letters. ,vol. 68, pp. 403- 405 ,(1996) , 10.1063/1.116699
J. Zhou, N. S. Xu, Z. L. Wang, Dissolving Behavior and Stability of ZnO Wires in Biofluids: A Study on Biodegradability and Biocompatibility of ZnO Nanostructures Advanced Materials. ,vol. 18, pp. 2432- 2435 ,(2006) , 10.1002/ADMA.200600200
Jianwei Qi, Nobuko I. Wakayama, The combined effects of magnetic field and magnetic field gradients on convection in crystal growth Physics of Fluids. ,vol. 16, pp. 3450- 3459 ,(2004) , 10.1063/1.1778402