Diameter scaling of the optical band gap in individual CdSe nanowires

Myalitsin, Anton, Strelow, Christian, Wang, Zhe, Li, Zhen, Kipp, Tobias and Mews, Alf (2011) Diameter scaling of the optical band gap in individual CdSe nanowires. ACS Nano, 5 10: 7920-7927. doi:10.1021/nn202199f


Author Myalitsin, Anton
Strelow, Christian
Wang, Zhe
Li, Zhen
Kipp, Tobias
Mews, Alf
Title Diameter scaling of the optical band gap in individual CdSe nanowires
Journal name ACS Nano   Check publisher's open access policy
ISSN 1936-0851
1936-086X
Publication date 2011-10-25
Sub-type Article (original research)
DOI 10.1021/nn202199f
Volume 5
Issue 10
Start page 7920
End page 7927
Total pages 8
Place of publication Washington, DC, United States
Publisher American Chemical Society
Collection year 2012
Language eng
Abstract The diameter dependence of the optical band gap of single CdSe nanowires (NWs) is investigated by a combination of atomic force microscopy, scanning fluorescence microscopy, and transmission electron microscopy. We find a good congruence of the experimental data to calculations within the effective mass approximation taking into account quantization, exciton Coulomb interaction, and dielectric mismatch. The experimental data are furthermore compared to different theoretical approaches. We discuss the influence of alternating wurtzite and zinc blende segments along the NWs on their optical properties.
Keyword Nanowires
CdSe
Fluorescence
Optical band gap
Effective mass approximation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
Australian Institute for Bioengineering and Nanotechnology Publications
 
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