Spatial fluctuations of optical emission from single ZnO/MgZnO nanowire quantum wells

被引:32
作者
Czekalla, C. [1 ]
Guinard, J. [2 ,3 ]
Hanisch, C. [1 ]
Cao, B. Q. [1 ]
Kaidashev, E. M. [1 ]
Boukos, N. [4 ]
Travlos, A. [4 ]
Renard, J. [5 ]
Gayral, B. [5 ]
Dang, D. Le Si [2 ,3 ]
Lorenz, M. [1 ]
Grundmann, M. [1 ]
机构
[1] Univ Leipzig, Inst Expt Phys 2, D-04103 Leipzig, Germany
[2] CNRS, Inst Neel, CEA, Grp Nanophys & Semicond, F-38042 Grenoble, France
[3] Univ Grenoble 1, F-38042 Grenoble, France
[4] Natl Ctr Sci Res Demokritos, Inst Mat Sci, GR-15310 Athens, Greece
[5] CEA, DRFMC, SP2M, PSC,CNRS,Grp Nanophys & Semicond, F-38054 Grenoble, France
关键词
Cathodoluminescence - Light emission - Nanowires - Photoluminescence - Pulsed laser deposition;
D O I
10.1088/0957-4484/19/11/115202
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
MgZnO/ZnO quantum wells on top of ZnO nanowires were grown by pulsed laser deposition. Ensembles of spatially fluctuating and narrow cathodoluminescence peaks with single widths down to 1 meV were found at the spectral position of the quantum well emission at 4 K. In addition, the number of these narrow QW peaks increases with increasing excitation power in micro-photoluminescence, thus pointing to quantum-dot-like emission centers. Indeed, laterally strained areas of about 5 nm diameter were identified at the quantum well positions on top of the nanowires by high-resolution transmission electron microscopy.
引用
收藏
页数:6
相关论文
共 19 条
  • [1] Fabrication and photoluminescent characteristics of ZnO/Mg0.2Zn0.8O coaxial nanorod single quantum well structures
    Bae, Jun Young
    Yoo, Jinkyoung
    Yi, Gyu-Chul
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (17)
  • [2] Hybrid single-nanowire photonic crystal and microresonator structures
    Barrelet, CJ
    Bao, JM
    Loncar, M
    Park, HG
    Capasso, F
    Lieber, CM
    [J]. NANO LETTERS, 2006, 6 (01) : 11 - 15
  • [3] One-dimensional heterostructures in semiconductor nanowhiskers
    Björk, MT
    Ohlsson, BJ
    Sass, T
    Persson, AI
    Thelander, C
    Magnusson, MH
    Deppert, K
    Wallenberg, LR
    Samuelson, L
    [J]. APPLIED PHYSICS LETTERS, 2002, 80 (06) : 1058 - 1060
  • [4] Phosphorus acceptor doped ZnO nanowires prepared by pulsed-laser deposition
    Cao, B. Q.
    Lorenz, M.
    Rahm, A.
    von Wenckstern, H.
    Czekalla, C.
    Lenzner, J.
    Benndorf, G.
    Grundmann, M.
    [J]. NANOTECHNOLOGY, 2007, 18 (45)
  • [5] Luminescence and surface properties of MgxZn1-xO thin films grown by pulsed laser deposition
    Heitsch, S.
    Zimmermann, G.
    Fritsch, D.
    Sturm, C.
    Schmidt-Grund, R.
    Schulz, C.
    Hochmuth, H.
    Spemann, D.
    Benndorf, G.
    Rheinlaender, B.
    Nobis, Th.
    Lorenz, M.
    Grundmann, M.
    [J]. JOURNAL OF APPLIED PHYSICS, 2007, 101 (08)
  • [6] HEITSCH S, 2006, P MRS, V957, P229
  • [7] Quantum confinement effect in ZnO/Mg0.2Zn0.8O multishell nanorod heterostructures -: art. no. 023102
    Jang, ES
    Bae, JY
    Yoo, J
    Park, WI
    Kim, DW
    Yi, GC
    Yatsui, T
    Ohtsu, M
    [J]. APPLIED PHYSICS LETTERS, 2006, 88 (02) : 1 - 3
  • [8] Formation and photoluminescent properties of embedded ZnO quantum dots in ZnO/ZnMgO multiple-quantum-well-structured nanorods
    Kim, Chinkyo
    Park, Won Il
    Yi, Gyu-Chul
    Kim, Miyoung
    [J]. APPLIED PHYSICS LETTERS, 2006, 89 (11)
  • [9] Semiconductor nanowire heterostructures
    Lauhon, LJ
    Gudiksen, MS
    Lieber, CM
    [J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2004, 362 (1819): : 1247 - 1260
  • [10] Nanowire electronic and optoelectronic devices
    Li, Yat
    Qian, Fang
    Xiang, Jie
    Lieber, Charles M.
    [J]. MATERIALS TODAY, 2006, 9 (10) : 18 - 27