Single-wall carbon nanotube films for photocurrent generation. A prompt response to visible-light irradiation

被引：142

作者：

Barazzouk, S

Hotchandani, S

Vinodgopal, K

Kamat, PV ^{[1
]}

机构：

[1] Univ Notre Dame, Radiat Lab, Notre Dame, IN 46530 USA

[2] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46530 USA

[3] Univ Quebec Trois Rivieres, Grp Rech Energie & Informat Biomol, Trois Rivieres, PQ G9A 5H7, Canada

[4] Indiana Univ, Dept Chem, Gary, IN 46408 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2004年 / 108卷 / 44期

关键词：

D O I：

10.1021/jp0458405

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：

Electrophoretically deposited single-wall carbon nanotube (SWCNT) films on optically transparent electrodes are photoelctrochemically active and generate photoeurrent upon visible excitation. A low photon-to-current conversion efficiency of 0.15% suggests that most of the photogenerated charge carriers are lost in the recombination process. Time-resolved transient absorption experiments confirm the charge separation following the laser-pulse excitation of SWCNTs. Relaxation of photogenerated charge carriers in the SWCNT to the lowest energy gap occurs in similar to1 ps.

引用

页码：17015 / 17018

页数：4

共 16 条

[1]

Ajayan PM, 2001, TOP APPL PHYS, V80, P391

[2] Excitons in carbon nanotubes [J].