QQ客服 官方微博 反馈留言

	Strong up-conversion emissions in zno:er3+, zno:er3+-yb3+ nanoparticles and their surface modified counterparts
	Meng, Xiuqing1,2; Liu, Chaoren2; Wu, Fengmin1; Li, Jingbo1,2
刊名	Journal of colloid and interface science
	2011-06-15
卷号	358期号:2页码:334-337
关键词	Sol-gel Zno:er-yb nanoparticles Up-conversion Core/shell Three-photon processes
ISSN号	0021-9797
DOI	10.1016/j.jcis.2011.03.036
通讯作者	Li, jingbo(jbli@semi.ac.cn)
英文摘要	Zno:er3+ and zno:er3+-yb3+ nanoparticles (nps) are fabricated by a sol-gel method, afterwards parts of which are separated and surface modified in mo(no3)(3) solution. analyses on phase and structure based on x-ray diffraction (xrd) and high-resolution transmission electron microscopy (hrtem) techniques indicate that er3+ and yb3+ are incorporated into the zno lattice successfully and after mo treatment, a thin layer of moo3 forms on the nps surface, forming core/shell structures. raman scattering spectra reveal the existence of znmoo4 in the shell part. visible up-conversion (uc) is observed in all the samples, with mo treated and untreated zno:er3+ emitting dominant but relatively weak red light, corresponding to f-4(9/2)-i-4(15/2) transition of er3+. in yb3+-codoping systems, the integral uc intensity is enhanced obviously though red emission still dominates the uc spectra before surface modification. in the mo treated system, zno:er3+-yb3+/moo3, green emission is increased while the red is suppressed in comparison to zno:er3+-yb3+, with the intensity of green to red ratio (grr) changing from 0.25 to 8. a novel phenomenon is discovered that the green emissions in our samples involve three-photon processes. (c) 2011 elsevier inc. all rights reserved.
WOS关键词	NANOCRYSTALLINE YTTRIA ; OPTICAL SPECTROSCOPY ; GLASSES ; LUMINESCENCE ; TEMPERATURE ; ER3+ ; YB3+ ; GREEN ; FILMS ; OXIDE
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
语种	英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE
WOS记录号	WOS:000290188400004
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2428201
专题	半导体研究所
通讯作者	Li, Jingbo
作者单位	1.Zhejiang Normal Univ, Res Ctr Light Emitting Diodes LED, Jinhua 321004, Peoples R China 2.Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Meng, Xiuqing,Liu, Chaoren,Wu, Fengmin,et al. Strong up-conversion emissions in zno:er3+, zno:er3+-yb3+ nanoparticles and their surface modified counterparts[J]. Journal of colloid and interface science,2011,358(2):334-337.
APA	Meng, Xiuqing,Liu, Chaoren,Wu, Fengmin,&Li, Jingbo.(2011).Strong up-conversion emissions in zno:er3+, zno:er3+-yb3+ nanoparticles and their surface modified counterparts.Journal of colloid and interface science,358(2),334-337.
MLA	Meng, Xiuqing,et al."Strong up-conversion emissions in zno:er3+, zno:er3+-yb3+ nanoparticles and their surface modified counterparts".Journal of colloid and interface science 358.2(2011):334-337.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。