Leeuw Tonya K, Tsyboulski Dmitri A, Nikolaev Pavel N, Bachilo Sergei M, Arepalli Sivaram, Weisman R Bruce
Department of Chemistry, Richard E. Smalley Institute for Nanoscale Science and Technology, and Center for Biological and Environmental Nanotechnology, Rice University, 6100 Main Street, Houston, Texas 77005, USA.
Nano Lett. 2008 Mar;8(3):826-31. doi: 10.1021/nl072861c. Epub 2008 Feb 26.
The fluorescence spectra of individual semiconducting single-walled carbon nanotubes embedded in polymer films were measured during the application of controlled stretching and compressive strains. Nanotube band gaps were found to shift in systematic patterns that depend on the (n,m) structural type and are in excellent agreement with the predictions of theoretical models. Loss of nanotube-host adhesion was revealed by abrupt irregularities in plots of spectral shift vs strain.
在施加可控拉伸和压缩应变的过程中，对嵌入聚合物薄膜中的单个半导体单壁碳纳米管的荧光光谱进行了测量。发现纳米管带隙以系统的模式发生移动，这取决于(n,m)结构类型，并且与理论模型的预测非常吻合。光谱位移与应变关系图中的突然不规则现象揭示了纳米管与主体之间附着力的丧失。
