利用Sol-gel法制备了含制孔剂P123的ZnO前驱体,通过无皂乳液聚合法和分步乳液聚合法制备了不同粒径的PS小球,采用共沉积法得到P123-PS-ZnO凝胶.高温煅烧去除有机模板剂P123和PS,从而制备出系列孔径可控的多孔ZnO电致发光材料.研究表明,多孔结构可以显著改善ZnO的电致发光性能;ZnO发光强度随PS粒度的改变而改变,当使用100nm PS小球为模板时,多孔ZnO材料的相对发光强度较未使用PS模板提高了4.03倍.
参考文献
| [1] | Yu P;Tang Z K;Wong G K L.Room temperature stimulated emission from ZnO quantum dot films[A].Singapore:World Scientific Publishing Co.Ptc.Ltd,1996:1453. |
| [2] | Guang-hui Ning;Xiao-peng Zhao;Jia Li;Chang-qing Zhang .Hugely enhanced electroluminescence from mesoporous ZnO particles[J].Optical materials,2006(4):385-390. |
| [3] | Kong L B;Li F C;Zhang L Y et al.Sol-gel glass-coated zinc oxide for varistor applications[J].Journal of Materials Science Letters,1998,17(09):769. |
| [4] | Sakohara S;Zshida M;Anderson M A .Visible luminescence and surface properties of nanosized ZnO colloids prepared by hydrolyzing zinc acetate[J].Journal of Physical Chemistry B,1998,102(50):10169. |
| [5] | S. Monticone;R. Tufeu;A. V. Kanaev .Complex Nature of the UV and Visible Fluorescence of Colloidal ZnO Nanoparticles[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,1998(16):2854-2862. |
| [6] | Lili Wu;Youshi Wu;Xiaoru Pan;Fanyuan Kong .Synthesis of ZnO nanorod and the annealing effect on its photoluminescence property[J].Optical materials,2006(4):418-422. |
| [7] | Yam H;He P;Johson J et al.Dendritic nanowire ultraviolet laser array[J].Journal of the American Chemical Society,2003,125(16):4728. |
| [8] | J. Y. Lao;J. Y. Huang;D. Z. Wang;Z. F. Ren .ZnO Nanobridges and Nanonails[J].Nano letters,2003(2):235-238. |
| [9] | Blue Luminescence of ZnO Nanoparticles Based on Non-Equilibrium Processes: Defect Origins and Emission Controls[J].Advanced functional materials,2010(4):561. |
| [10] | J. Li;X. Zhao;C. Yan .Synthesis and characterization of mesoporous zinc sulfide by surfactant-assisted templating process[J].Materials Letters,2006(23):2896-2899. |
| [11] | Li H;Zhao XP;Yan CM;Luo YJ .Electroluminescence of ZnO nanocrystalline particles annealed from mesoporous precursors[J].Materials Chemistry and Physics,2008(1):177-182. |
| [12] | Yan CM;Chen Z;Zhao XP .Enhanced electroluminescence of ZnO nanocrystalline annealing from mesoporous precursors[J].Solid State Communications,2006(1):18-22. |
| [13] | Du X;He JH .Facile size-controllable syntheses of highly monodisperse polystyrene nano- and microspheres by polyvinylpyrrolidone-mediated emulsifier-free emulsion polymerization[J].Journal of Applied Polymer Science,2008(3):1755-1760. |
| [14] | 陈政,王玲玲,姜万涛,严春美,赵晓鹏.多孔纳米氧化锌的模板法优化制备与电致发光特性[J].无机材料学报,2007(05):901-906. |
| [15] | Kwok WM;Djurisic AB;Leung YH;Chan WK;Phillips DL .Time-resolved photoluminescence study of the stimulated emission in ZnO nanoneedles[J].Applied physics letters,2005(9):3108-1-3108-3-0. |
| [16] | Zhao, XP;Chen, Z;Luo, YJ;Wang, LL .Giant enhanced infrared and orange emissions of ZnO nanoparticles induced by rich oxygen atmosphere[J].Solid State Communications,2008(11/12):447-451. |
| [17] | Ge HL;Song YL;Jiang L;Zhu DB .One-step preparation of polystyrene colloidal crystal films with structural colors and high hydrophobicity[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2006(4):1539-1543. |
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