Title :
p-n Junction photodetectors based on macroscopic single-wall carbon nanotube films
Author :
Xiaowei He ; Nanot, Sebastien ; Xuan Wang ; Hauge, Robert H. ; Kane, Alexander A. ; Goldsmith, John E. M. ; Leonard, Francois ; Kono, Junichiro
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
We have designed, fabricated, and characterized novel p-n junction photodetectors based on macroscopic single-wall carbon nanotube films. A broadband responsivity up to ~ 1 V/W was observed at the junction region. By controlling for substrate and doping levels, we determined that the mechanism is the photothermoelectric effect, which is supported by a theoretical model.
Keywords :
carbon nanotubes; doping profiles; nanophotonics; optical design techniques; optical fabrication; p-n junctions; photodetectors; photoelectricity; photothermal effects; thermoelectricity; C; broadband responsivity; doping levels; macroscopic single-wall carbon nanotube films; p-n junction photodetectors; photothermoelectric effect; Carbon nanotubes; Films; III-V semiconductor materials; Lighting; P-n junctions; Photodetectors; Substrates;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
