Van Hove singularities and nonlinear photoluminescence in multiwalled carbon nanotubes

被引：0
|
作者：
Yuan Yan-hong [1 ,2 ]
Miao Run-cai [3 ]
Liu Bao-ying [1 ,2 ]
机构：
[1] Northwest Univ, Inst Photon & Photon Technol, Xian 710069, Shaanxi, Peoples R China
[2] Northwest Univ, Prov Key Lab Photoelect Technol, Xian 710069, Shaanxi, Peoples R China
[3] Shaanxi Normal Univ, Xian 710062, Shaanxi, Peoples R China
来源：
OPTOELECTRONICS LETTERS | 2006年 / 2卷 / 03期
关键词：
D O I：
暂无
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The absorption spectrum and photoluminescence spectrum of multiwalled carbon nanotubes(MWNTs) and the peaks related with Van Hove singularities(VHS) were obtained experimentally. Both the VHS formation and the change of band gaps in MWNTs depend on the intershell interaction. The VHS makes the probability of optical transitions enhanced, but the intershell interaction suppresses such radiative transitions. The excitation in the experiment involves a two-photon absorption process and the emission light has the effect of the optical frequency up-conversion.
引用
收藏
页码：186 / 188
页数：3
相关论文
共 50 条
  • [31] Observation of Van Hove singularities in twisted graphene layers
    Li, Guohong
    Luican, A.
    Lopes dos Santos, J. M. B.
    Castro Neto, A. H.
    Reina, A.
    Kong, J.
    Andrei, E. Y.
    NATURE PHYSICS, 2010, 6 (02) : 109 - 113
  • [32] Van Hove singularities in the quark-gluon plasma
    Thoma, MH
    NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 2001, 92 : 162 - 170
  • [33] IMPACT IONIZATION THRESHOLDS AS GENERALIZATIONS OF VAN HOVE SINGULARITIES
    LANDSBERG, PT
    ROBBINS, DJ
    JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1977, 10 (14): : 2717 - 2739
  • [34] Nonlinear photoluminescence in multiwall carbon nanotubes
    Brennan, ME
    Coleman, JN
    Panhuis, MIH
    Marty, L
    Byrne, HJ
    Blau, WJ
    SYNTHETIC METALS, 2001, 119 (1-3) : 641 - 642
  • [35] Spectral Properties of Dirac Billiards at the van Hove Singularities
    Dietz, B.
    Klaus, T.
    Miski-Oglu, M.
    Richter, A.
    Wunderle, M.
    Bouazza, C.
    PHYSICAL REVIEW LETTERS, 2016, 116 (02)
  • [36] Bilayer Kagome Borophene with Multiple van Hove Singularities
    Gao, Qian
    Yan, Qimin
    Hu, Zhenpeng
    Chen, Lan
    ADVANCED SCIENCE, 2024, 11 (37)
  • [37] Origin of van Hove singularities in twisted bilayer graphene
    Ribeiro, H. B.
    Sato, K.
    Eliel, G. S. N.
    de Souza, E. A. T.
    Lu, Chun-Chieh
    Chiu, Po-Wen
    Saito, R.
    Pimenta, M. A.
    CARBON, 2015, 90 : 138 - 145
  • [38] Observation of van Hove Singularities in Twisted Silicene Multilayers
    Li, Zhi
    Zhuang, Jincheng
    Chen, Lan
    Ni, Zhenyi
    Liu, Chen
    Wang, Li
    Xu, Xun
    Wang, Jiaou
    Pi, Xiaodong
    Wang, Xiaolin
    Du, Yi
    Wu, Kehui
    Dou, Shi Xue
    ACS CENTRAL SCIENCE, 2016, 2 (08) : 517 - 521
  • [39] Interferometric measurement of Van Hove singularities in strained graphene
    Entezar, Samad Roshan
    APPLIED OPTICS, 2020, 59 (16) : 4757 - 4762
  • [40] Effects of Van Hove singularities on the upper critical field
    Dias, RG
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (42) : 9053 - 9060
12345