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wfw8712

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[求助] 急!!!!!!!!!求两篇EI文章的检索号

1. 核/壳结构ZnS:Mn /ZnS 量子点光发射增强研究
张晓松, 李 岚, 黄青松 , 张高峰, 徐建萍 , 宣荣卫, 魏凤巍
2. Temperature dependence of the sole Mn2+ emissions in Manganese
doped ZnS:Mn quantum dots
Xiaosong Zhang, Gaofeng Zhang, Qingsong Huang, Fengwei Wei,
and Yongliang Zhou
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wfw8712: 金币+15, ★★★★★最佳答案 2012-05-17 14:22:23
Accession number:  20111513902033
Title:  Temperature dependence of the sole Mn2+ emissions in manganese doped ZnS:Mn quantum dots
Authors:  Zhang, Xiao Song1, 2 ; Zhang, Gao Feng2 ; Huang, Qing Song2 ; Wei, Feng Wei2 ; Zhou, Yong Liang2   
Author affiliation:  1  School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China
2  Institute of Material Physics, Tianjin University of Technology, Tianjin, 300191, China
Corresponding author:  Zhang, X. S. (zhangxiaosong@tjut.edu.cn)  
Source title:  Advanced Materials Research
Abbreviated source title:  Adv. Mater. Res.
Volume:  159
Monograph title:  Micro Nano Devices, Structure and Computing Systems
Issue date:  2011
Publication year:  2011
Pages:  572-577
Language:  English
ISSN:  10226680
ISBN-13:  9783037850091
Document type:  Conference article (CA)
Conference name:  2010 International Conference on Micro Nano Devices, Structure and Computing Systems, MNDSCS 2010
Conference date:  November 6, 2010 - November 7, 2010
Conference location:  Singapore, Singapore
Conference code:  84505
Sponsor:  International Science and Engineering Center (ISEC); National University of Singapore (NUS); Shenzhen University
Publisher:  Trans Tech Publications, P.O. Box 1254, Clausthal-Zellerfeld, D-38670, Germany
Abstract:  ZnS:Mn Quantum dots (QDs) excess of [S2-] were synthesized by the wet chemical precipitation method with an average diameter of 3.9 nm. Temperature dependence photoluminescence measurements of ZnS:Mn QDs excited at 330nm only show a clear broad emission band with peak at ∼595nm assigned to the 4T1&rarr6A1 transition within the 3d5 configuration of Mn2+ in QDs. Through the temperature dependence of emission intensity, emission energy and full widths at half maximum (FWHM), the mechanisms are analyzed to explain the temperature behavior of Mn2+ emission observed here reasonably. The Mn 2+ emission intensity decreases with increasing temperature. And the blue shift of the Mn2+ emission energy increase is also observed for increasing the temperature. Furthermore, the FWHM shows weak temperature dependence below 110 K and shows an increase with temperature increasing above 110 K. Consequently, the intrinsic mechanisms of temperature dependence photoluminescence are investigated. © (2011) Trans Tech Publications.
Number of references:  15
Main heading:  Semiconductor quantum dots
Controlled terms:  Electron correlations  -  Electron-phonon interactions  -  Manganese  -  Photoluminescence  -  Precipitation (chemical)  -  Temperature distribution  -  Zinc sulfide
Uncontrolled terms:  Average diameter  -  Blue shift  -  Broad emission bands  -  Doped ZnS  -  Electron phonon couplings  -  Emission energies  -  Emission energy full widths at half maximum photoluminescence  -  Emission intensity  -  Full widths at half maximums  -  Intrinsic mechanisms   -  Photoluminescence measurements  -  Quantum Dot  -  Quantum dots  -  Temperature behavior  -  Temperature dependence  -  Wet-chemical precipitation  -  ZnS:Mn Quantum dots
Classification code:  933 Solid State Physics  -  804.2 Inorganic Compounds  -  802.3 Chemical Operations  -  741.1 Light/Optics  -  714.2 Semiconductor Devices and Integrated Circuits  -  641.1 Thermodynamics  -  543.2 Manganese and Alloys
DOI:  10.4028/www.scientific.net/AMR.159.572
Database:  Compendex
Compilation and indexing terms, © 2012 Elsevier Inc.
2楼2012-05-17 12:53:23
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wfw8712: 金币+15, ★★★★★最佳答案 2012-05-17 14:22:28
Accession number:  20110813685147
Title:  Photoluminescence enhancement of ZnS:Mn/ZnS core/shell quantum dots
Authors:  Zhang, Xiao-Song1, 2 ; Li, Lan1 ; Huang, Qing-Song1 ; Zhang, Gao-Feng1 ; Xu, Jian-Ping1 ; Xuan, Rong-Wei1 ; Wei, Feng-Wei1  
Author affiliation:  1  Institute of Material Physics, Tianjin University of Technology, Tianjin 300384, China
2  School of Materials Science and Engineering, Harbin Insititute of Technology, Harbin 150001, China
Corresponding author:  Zhang, X.-S. (zhangxiaosong@tjut.edu.cn)  
Source title:  Guangdianzi Jiguang/Journal of Optoelectronics Laser
Abbreviated source title:  Guangdianzi Jiguang
Volume:  22
Issue:  1
Issue date:  January 2011
Publication year:  2011
Pages:  1-4
Language:  Chinese
ISSN:  10050086
CODEN:  GUJIE9
Document type:  Journal article (JA)
Publisher:  Board of Optronics Lasers, No. 47 Yang-Liu-Qing Ying-Jian Road, Tian-Jin City, 300380, China
Abstract:  ZnS:Mn and ZnS:Mn/ZnS core/shell quantum dots (QDs) were prepared in the aqueous medium from readily available precursors. The construction and luminescence properties of ZnS:Mn and ZnS:Mn/ZnS core/shell QDs were evaluated by X-ray diffraction (XRD) and photoluminescence (PL) spectra.The powder X-ray diffraction (XRD) measurements show that the ZnS:Mn and ZnS:Mn/ZnS core/shell QDs are β-ZnS structure, and the size of ZnS:Mn/ZnS core/shell QDs increases with adding ZnS shells. ZnS:Mn and ZnS:Mn/ZnS core/shell QDs both have photoluminescence at 586 nm through the 4T1-6A1 transition of Mn ions. Specially, the PL intensity of ZnS:Mn/ZnS core/shell QDs is enhanced with adding ZnS shells, and ZnS shells never lead to blue or red shift in PL spectra. It is because ZnS shells can block some non-radiative recombination routes related to the surface state of the QDs, which will increase the concentration of luminescent center and decrease the non-radiative recombination sites. The luminescence intensity of thioglycolic acid (TAG) modified ZnS:Mn QDs decreases significantly, while that of thioglycolic acid modified ZnS:Mn/ZnS QDs decreases slightly, although the stability and solubility of thioglycolic acid modified ZnS:Mn and ZnS:Mn/ZnS QDs are improved.
Number of references:  16
Main heading:  Zinc sulfide
Controlled terms:  Diffraction  -  Light emission  -  Manganese  -  Photoluminescence  -  Semiconductor quantum dots  -  Shells (structures)  -  X ray diffraction
Uncontrolled terms:  Aqueous medium  -  Core/shell  -  Luminescence intensity  -  Luminescence properties  -  Luminescent centers  -  Mn ions  -  Non-radiative recombinations  -  Photoluminescence enhancement  -  PL intensity  -  PL spectra   -  Powder X ray diffraction  -  Quantum Dot  -  Quantum dots  -  Red shift  -  Surface state  -  Thioglycolic acid  -  Thioglycolic acid (TAG) modified  -  ZnS:Mn  -  ZnS:Mn/ZnS
Classification code:  408.2 Structural Members and Shapes  -  543.2 Manganese and Alloys  -  714.2 Semiconductor Devices and Integrated Circuits  -  741.1 Light/Optics  -  804.2 Inorganic Compounds  -  931.3 Atomic and Molecular Physics
Database:  Compendex
Compilation and indexing terms, © 2012 Elsevier Inc.
3楼2012-05-17 12:56:57
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