Flexible photodiodes constructed with CdTe nanoparticle thin films and single ZnO nanowires on plastics

Kiyeol Kwak; Kyoungah Cho; Sangsig Kim

doi:10.1088/0957-4484/22/41/415204

Flexible photodiodes constructed with CdTe nanoparticle thin films and single ZnO nanowires on plastics

Kiyeol Kwak, Kyoungah Cho, Sangsig Kim

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We construct a flexible pn heterostructured photodiode using a CdTe nanoparticle thin film and a single ZnO nanowire (NW) on a plastic substrate. The photocurrent characteristics of the flexible photodiode are examined under illumination with 325nm wavelength light and the photocurrent efficiencies at bias voltages of ± 2.5V are estimated to be 8.0 and 2.1νAW ^-1 under forward and reverse bias conditions, respectively. The photocurrent generation of the pn heterostructured photodiode is dominantly associated with the transport of the photogenerated charge carriers in the single ZnO NW. Furthermore, the operations of our flexible photodiode are investigated in the upwardly and downwardly bent states, as well as in the flat state.

Original language	English
Article number	415204
Journal	Nanotechnology
Volume	22
Issue number	41
DOIs	https://doi.org/10.1088/0957-4484/22/41/415204
Publication status	Published - 2011 Oct 14

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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abstract = "We construct a flexible pn heterostructured photodiode using a CdTe nanoparticle thin film and a single ZnO nanowire (NW) on a plastic substrate. The photocurrent characteristics of the flexible photodiode are examined under illumination with 325nm wavelength light and the photocurrent efficiencies at bias voltages of ± 2.5V are estimated to be 8.0 and 2.1νAW -1 under forward and reverse bias conditions, respectively. The photocurrent generation of the pn heterostructured photodiode is dominantly associated with the transport of the photogenerated charge carriers in the single ZnO NW. Furthermore, the operations of our flexible photodiode are investigated in the upwardly and downwardly bent states, as well as in the flat state.",

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N2 - We construct a flexible pn heterostructured photodiode using a CdTe nanoparticle thin film and a single ZnO nanowire (NW) on a plastic substrate. The photocurrent characteristics of the flexible photodiode are examined under illumination with 325nm wavelength light and the photocurrent efficiencies at bias voltages of ± 2.5V are estimated to be 8.0 and 2.1νAW -1 under forward and reverse bias conditions, respectively. The photocurrent generation of the pn heterostructured photodiode is dominantly associated with the transport of the photogenerated charge carriers in the single ZnO NW. Furthermore, the operations of our flexible photodiode are investigated in the upwardly and downwardly bent states, as well as in the flat state.

AB - We construct a flexible pn heterostructured photodiode using a CdTe nanoparticle thin film and a single ZnO nanowire (NW) on a plastic substrate. The photocurrent characteristics of the flexible photodiode are examined under illumination with 325nm wavelength light and the photocurrent efficiencies at bias voltages of ± 2.5V are estimated to be 8.0 and 2.1νAW -1 under forward and reverse bias conditions, respectively. The photocurrent generation of the pn heterostructured photodiode is dominantly associated with the transport of the photogenerated charge carriers in the single ZnO NW. Furthermore, the operations of our flexible photodiode are investigated in the upwardly and downwardly bent states, as well as in the flat state.

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Flexible photodiodes constructed with CdTe nanoparticle thin films and single ZnO nanowires on plastics

Abstract

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