Competing Photocurrent Mechanisms in Quasi-Metallic Carbon Nanotube pn Devices.

Amer, Moh R; Chang, Shun-Wen; Cronin, Stephen B

Amer, Moh R; Chang, Shun-Wen; Cronin, Stephen B.

Afiliação

Amer MR; Center of Excellence for Green Nanotechnologies, University of California Los Angeles, CA 90095, USA and King Abdulaziz City for Science and Technology, Riyadh, Saudi Arabia.
Chang SW; Department of Physics and Astronomy, University of Southern California, Los Angeles, CA, 90089, USA.
Cronin SB; Department of Physics and Astronomy, University of Southern California, Los Angeles, CA, 90089, USA.

Small ; 11(26): 3119-23, 2015 Jul.

Article em En | MEDLINE | ID: mdl-25767070

ABSTRACT

ABSTRACT

Photodetectors based on quasi-metallic carbon nanotubes exhibit unique optoelectronic properties. Due to their small bandgap, photocurrent generation is possible at room temperature. The origin of this photocurrent is investigated to determine the underlying mechanism, which can be photothermoelectric effect or photovoltaic effect, depending on the bandgap magnitude of the quasi-metallic nanotube.

Palavras-chave

bandgaps; carbon nanotubes; carrier generation rates; photocurrents, photothermoelectric effect; thermoelectric power

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Texto completo: 1 Base de dados: MEDLINE Idioma: En Revista: Small Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2015 Tipo de documento: Article País de afiliação: Arábia Saudita

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