Highly transparent bulk PMMA/ZnO nanocomposites with bright visible luminescence and efficient UV-shielding capability

	Highly transparent bulk PMMA/ZnO nanocomposites with bright visible luminescence and efficient UV-shielding capability
	Zhang Y ; Wang X ; Liu YX ; Song SY ; Liu D
刊名	journal of materials chemistry
	2012
卷号	22 期号:24 页码:11971-11977
关键词	NANOCRYSTALLINE ZNO PARTICLES CORE-SHELL NANOPARTICLES POLYMER NANOCOMPOSITES QUANTUM DOTS PHOTOLUMINESCENCE EMISSION ROUTE FLUORESCENCE COMPOSITES POLYETHER
ISSN号	0959-9428
通讯作者	liu dp
中文摘要	we demonstrate a valuable two-step in situ polymerization process to address the four key issues on preparation of the bulk pmma/zno nanocomposites, that is, transparency, luminescence, uv shielding capability, and homogeneity, since in all previous reports it is hard to give attention to four, or any three and even two of the above properties. step 1 is the in situ sol-gel polymerization process, involving the nucleation and growth of zno quantum dots ( qds) in ethanol solutions. in this step, the zno qds were formed along with the copolymerization of mma monomers and zinc methacrylate (zn(maa)(2)). the obtained pmma/zno precursors emit bright blue and yellow luminescence. then in step 2, the precursors are further polymerized into pmma matrices to get the final bulk pmma/zno nanocomposites that show high transparency, bright visible luminescence, efficient uv-shielding capability, and good homogeneity. the quantum yields of the zno qds could reach as high as 60% for the blue light emitting samples and 30% for the yellow light emitting ones. finally, the careful spectral characterization indicates that the oxygen vacancies that are the main existing defects states in the quantum sized zno particles are probably responsible for the visible luminescence of our zno qd samples.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000304561900015
公开日期	2013-06-30
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/48547]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Zhang Y,Wang X,Liu YX,et al. Highly transparent bulk PMMA/ZnO nanocomposites with bright visible luminescence and efficient UV-shielding capability[J]. journal of materials chemistry,2012,22(24):11971-11977.
APA	Zhang Y,Wang X,Liu YX,Song SY,&Liu D.(2012).Highly transparent bulk PMMA/ZnO nanocomposites with bright visible luminescence and efficient UV-shielding capability.journal of materials chemistry,22(24),11971-11977.
MLA	Zhang Y,et al."Highly transparent bulk PMMA/ZnO nanocomposites with bright visible luminescence and efficient UV-shielding capability".journal of materials chemistry 22.24(2012):11971-11977.