English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 62805/95882 (66%)
造访人次 : 3856600      在线人数 : 356
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻

    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/78768

    题名: Nitrogen-Functionalized Graphene Nanoflakes (GNFs:N): Tunable Photoluminescence and Electronic Structures
    作者: Chiou, J.W.;Ray, S.C.;Peng, S.I.;Chuang, C.H.;Wang, B.Y.;Tsai, H.M.;Pao, C.W.;Lin, H.-J.;Shao, Y.C.;Wang, Y.F.;Chen, S.C.;Pong, W.F.;Yeh, Y.C. Chen, C.W. Chen, L.-C. Chen, K.-H. Tsai, M.-H.;Kumar, A.;Ganguly, A.;Papakonstantinou, P.;Yamane, H.;Kosugi, N.;Regier, T.;Liu, L.;Sham, T.K.
    贡献者: 淡江大學物理學系
    日期: 2012-07
    上传时间: 2012-10-22 10:15:44 (UTC+8)
    出版者: Washington: American Chemical Society
    摘要: This study investigates the strong photoluminescence (PL) and X-ray excited optical luminescence observed in nitrogen-functionalized 2D graphene nanoflakes (GNFs:N), which arise from the significantly enhanced density of states in the region of π states and the gap between π and π* states. The increase in the number of the sp2 clusters in the form of pyridine-like N–C, graphite-N-like, and the C═O bonding and the resonant energy transfer from the N and O atoms to the sp2 clusters were found to be responsible for the blue shift and the enhancement of the main PL emission feature. The enhanced PL is strongly related to the induced changes of the electronic structures and bonding properties, which were revealed by the X-ray absorption near-edge structure, X-ray emission spectroscopy, and resonance inelastic X-ray scattering. The study demonstrates that PL emission can be tailored through appropriate tuning of the nitrogen and oxygen contents in GNFs and pave the way for new optoelectronic devices.
    關聯: Journal of Physical Chemistry C 116(30), pp.16251–16258
    DOI: 10.1021/jp303465u
    显示于类别:[物理學系暨研究所] 期刊論文


    档案 描述 大小格式浏览次数
    Nitrogen-Functionalized Graphene Nanoflakes (GNFs N) Tunable Photoluminescence and Electronic Structures.pdf2440KbAdobe PDF1检视/开启



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈