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

Kiyeol Kwak, Kyoungah Cho, Sangsig Kim

Research output: Contribution to journalArticle

8 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 languageEnglish
Article number415204
JournalNanotechnology
Volume22
Issue number41
DOIs
Publication statusPublished - 2011 Oct 14

Fingerprint

Nanowires
Photodiodes
Nanoparticles
Plastics
Photocurrents
Thin films
Lighting
Light
Bias voltage
Charge carriers
Wavelength
Substrates

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Flexible photodiodes constructed with CdTe nanoparticle thin films and single ZnO nanowires on plastics. / Kwak, Kiyeol; Cho, Kyoungah; Kim, Sangsig.

In: Nanotechnology, Vol. 22, No. 41, 415204, 14.10.2011.

Research output: Contribution to journalArticle

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