Control of the Near Infrared Photoluminescence of Locally Functionalized Single‐Walled Carbon Nanotubes via Doping by Azacrown‐Ether Modification

DOI Web Site Web Site PubMed 14 Citations 61 References
  • Hisashi Onitsuka
    Department of Applied Chemistry Graduate School of Engineering Kyushu University 744 Motooka Nishi-ku Fukuoka 819-0395 Japan
  • Tsuyohiko Fujigaya
    Department of Applied Chemistry Graduate School of Engineering Kyushu University 744 Motooka Nishi-ku Fukuoka 819-0395 Japan
  • Naotoshi Nakashima
    International Institute for Carbon-Neutral Energy Research (WPI-I2CNER) Kyushu University 744 Motooka Nishi-ku Fukuoka 819-0395 Japan
  • Tomohiro Shiraki
    Department of Applied Chemistry Graduate School of Engineering Kyushu University 744 Motooka Nishi-ku Fukuoka 819-0395 Japan

Search this article

Description

<jats:title>Abstract</jats:title><jats:p>Doped semiconducting single‐walled carbon nanotubes (SWNTs) through local chemical functionalization (lf‐SWNTs) show fascinating photoluminescence (PL) that appears with a longer wavelength and enhanced quantum yield compared to the original PL of non‐modified SWNTs. In this study, we introduce an azacrown ether moiety at the doped sites of lf‐SWNTs (CR‐lf‐SWNTs), and observe selective PL wavelength shifts depending on different interaction modes of silver ion inclusion and protonation of the amino group in the ring. Interestingly, their different values of the wavelength shifts show a clear correlation with calculated electron density of the nitrogen atom in the azacrown moiety in case of the inclusion form and the protonated form. This newly‐observed responsiveness based on molecular interactions is expected to create doped sites that can versatilely control the PL functions based on molecular systems.</jats:p>

Journal

Citations (14)*help

See more

References(61)*help

See more

Related Projects

See more

Details 詳細情報について

Report a problem

Back to top