Photoluminescence spectral imaging of ultralong single-walled carbon nanotubes: Micromanipulation-induced strain, rupture, and determination of handedness
文献类型：期刊论文
| 作者 | Kiowski, Oliver1,2; Jester, Stefan-Sven1; Lebedkin, Sergei1; Jin, Zhong3; Li, Yan3; Kappes, Manfred M.1,2 |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 80期号:7 |
| ISSN号 | 1098-0121 |
| DOI | 10.1103/PhysRevB.80.075426 |
| 英文摘要 | We 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000269638900098 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67089]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Lebedkin, Sergei |
| 作者单位 | 1.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 |
| 推荐引用方式 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). |
入库方式： OAI收割
来源：化学研究所
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