硝基芳烃分子对功能化单壁碳纳米管光致发光的高效猝灭

Efficient quenching of photoluminescence from functionalized single-walled carbon nanotubes by nitroaromatic molecules.

作者信息

Kose Muhammet Erkan, Harruff Barbara A, Lin Yi, Veca L Monica, Lu Fushen, Sun Ya-Ping

机构信息

Department of Chemistry and Laboratory for Emerging Materials and Technology, Clemson University, Clemson, SC 29634-0973, USA.

出版信息

J Phys Chem B. 2006 Jul 27;110(29):14032-4. doi: 10.1021/jp063251o.

DOI:10.1021/jp063251o

PMID:16854095

Abstract

The photoluminescence from functionalized single-walled carbon nanotubes was found to be highly sensitive to the presence of nitroaromatic compounds such as nitrobenzene, 4-nitrotoluene, and 2,4-dinitrotoluene. The strong luminescence quenching in solution was at the upper limit of diffusion-control and also showed significant static quenching contributions. Mechanistic implication of the results and potential applications are discussed.

摘要

研究发现，功能化单壁碳纳米管的光致发光对硝基苯、4-硝基甲苯和2,4-二硝基甲苯等硝基芳香化合物的存在高度敏感。溶液中强烈的发光猝灭处于扩散控制的上限，并且还表现出显著的静态猝灭贡献。文中讨论了该结果的机理意义及潜在应用。