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.

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页码：11776 / 11778

页数：3

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