ICCAS OpenIR
Photoluminescence spectral imaging of ultralong single-walled carbon nanotubes: Micromanipulation-induced strain, rupture, and determination of handedness
Kiowski, Oliver1,2; Jester, Stefan-Sven1; Lebedkin, Sergei1; Jin, Zhong3; Li, Yan3; Kappes, Manfred M.1,2
2009-08-01
Source PublicationPHYSICAL REVIEW B
ISSN1098-0121
Volume80Issue:7
AbstractWe have applied photoluminescence (PL) microscopy with scanning laser excitation wavelength for imaging and characterizing individual, millimeter-long, single-walled carbon nanotubes (SWNTs) grown by chemical-vapor deposition on structured Si/SiO(2) substrates. Trenches etched into the substrates allowed a direct comparison of the PL properties of air-suspended (across the trenches) and on-SiO(2) segments of the same semiconducting nanotubes. For the on-SiO(2) segments, we found an similar to 10-20-fold decrease in PL intensity and redshifts of the emission and excitation transitions by 7-27 meV and 5-24 meV, respectively, compared to air-suspended regions of the same SWNTs. Furthermore, PL imaging was applied to SWNTs fractured by dragging an atomic force microscope tip across on-SiO(2) segments. Strong, localized changes in the emission properties were observed. These included the appearance of PL blinking at the fracture site and evidence for residual axial and to a lesser extent torsional strain extending tens of microns away from the fracture site. We also discuss how PL measurements of torsional strain can be used to determine the handedness of a luminescent nanotube.
DOI10.1103/PhysRevB.80.075426
Indexed BySCI
Language英语
WOS IDWOS:000269638900098
PublisherAMER PHYSICAL SOC
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/67090
Collection中国科学院化学研究所
Corresponding AuthorLebedkin, Sergei
Affiliation1.Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany
2.Univ Karlsruhe, Inst Phys Chem, D-76128 Karlsruhe, Germany
3.Peking Univ, Coll Chem & Mol Engn, Key Lab Phys & Chem Nanodevices, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Kiowski, Oliver,Jester, Stefan-Sven,Lebedkin, Sergei,et al. Photoluminescence spectral imaging of ultralong single-walled carbon nanotubes: Micromanipulation-induced strain, rupture, and determination of handedness[J]. PHYSICAL REVIEW B,2009,80(7).
APA Kiowski, Oliver,Jester, Stefan-Sven,Lebedkin, Sergei,Jin, Zhong,Li, Yan,&Kappes, Manfred M..(2009).Photoluminescence spectral imaging of ultralong single-walled carbon nanotubes: Micromanipulation-induced strain, rupture, and determination of handedness.PHYSICAL REVIEW B,80(7).
MLA Kiowski, Oliver,et al."Photoluminescence spectral imaging of ultralong single-walled carbon nanotubes: Micromanipulation-induced strain, rupture, and determination of handedness".PHYSICAL REVIEW B 80.7(2009).
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