Helicity-Selective Photoreaction of Single-Walled Carbon Nanotubes with Organosulfur Compounds in the Presence of Oxygen
详细信息 查看全文
- 作者：Yutaka Maeda ; Junki Higo ; Yuri Amagai ; Jun Matsui ; Kei Ohkubo ; Yusuke Yoshigoe ; Masahiro Hashimoto ; Kazuhiro Eguchi ; Michio Yamada ; Tadashi Hasegawa ; Yoshinori Sato ; Jing Zhou ; Jing Lu ; Tokuji Miyashita ; Shunichi Fukuzumi ; Tatsuya Murakami ; Kazuyuki Tohji ; Shigeru Nagase ; Takeshi Akasaka
- 刊名：The Journal of the American Chemical Society
- 出版年：2013
- 出版时间：April 24, 2013
- 年：2013
- 卷：135
- 期：16
- 页码：6356-6362
- 全文大小：421K
- 年卷期：v.135,no.16(April 24, 2013)
- ISSN：1520-5126
文摘
This report describes a helicity-selective photoreaction of single-walled carbon nanotubes (SWNTs) with disulfide in the presence of oxygen. The SWNTs were characterized using absorption, photoluminescence (PL), Raman, and X-ray photoelectron spectroscopy, scanning electron microscopy, and current鈥搗oltage (I鈥?i>V) measurements. Results showed remarkable helicity-selective (metallic SWNTs/semiconducting SWNTs and diameter) functionalization of SWNTs. The reaction rate decreases in the order of metallic SWNTs > semiconducting SWNTs and small-diameter SWNTs > large-diameter SWNTs. Control experiments conducted under various experimental conditions and ESR and femtosecond laser flash photolysis measurements revealed that the helicity-selective reaction proceeds via a photoinduced electron transfer reaction. The PL and I鈥?i>V measurements showed that the photoreaction is effective not only to control SWNT conductivity but also for the band gap modulation of semiconducting SWNTs.