Inverted spectra of single-wall carbon nanotube films

被引：3
|
作者：
Lehman, John H. [1 ]
Hurst, Katherine E.
Roberson, Lara K.
Nield, Kathryn
Hamlin, John D.
机构：
[1] Natl Inst Stand & Technol, Boulder, CO 80305 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2008年 / 112卷 / 31期
关键词：
D O I：
10.1021/jp804683z
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We present absolute measurements of reflectance and absorbance for a purified single wall carbon nanotube (SWCNT) film. The absorbance spectrum of a SWCNT-laminated pyroelectric detector for wavelengths 0.6-2 mu m is inverted when compared to absorbance data in the literature, which is typically inferred by reciprocity from transmissivity measured by a spectrophotometer. This surprising behavior has been corroborated by diffuse reflectance measurements and suggests that reflectance dominates absorption for wavelengths near excitonic transitions.
引用
收藏
页码：11776 / 11778
页数：3
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