Influence of diameter on the photoresponse in a networked zinc-oxide nanowire photodetector

Ryong Ha, Jae Chul Pyun, Hwangyou Oh, Heon Jin Choi, Young Jin Choi, Jae Kwan Park

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We report on the photoresponses of networked ZnO nanowire photodetectors fabricated by using a simple, mass-scalable process. ZnO nanowires were synthesized by using a carbothermal reduction process and the diameter of the nanowires was controlled by using the thickness of the gold catalyst. The photoresponse was measured by using photodectors fabricated with nanowires of 80 nm and 300 nm in diameter. The photoresponse showed no dependence on the diameter of the nanowires in the wavelength range of 200 ∼ 370 nm, which is attributed to the effects of photo-generation and photolysis on the surface nanowires, while it showed a dependence on the diameter in the wavelength range of 370 ∼ 650 nm.

Original languageEnglish
Pages (from-to)1992-1995
Number of pages4
JournalJournal of the Korean Physical Society
Volume53
Issue number4
DOIs
Publication statusPublished - 2008 Jan 1

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zinc oxides
photometers
nanowires
wavelengths
photolysis
gold
catalysts

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

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abstract = "We report on the photoresponses of networked ZnO nanowire photodetectors fabricated by using a simple, mass-scalable process. ZnO nanowires were synthesized by using a carbothermal reduction process and the diameter of the nanowires was controlled by using the thickness of the gold catalyst. The photoresponse was measured by using photodectors fabricated with nanowires of 80 nm and 300 nm in diameter. The photoresponse showed no dependence on the diameter of the nanowires in the wavelength range of 200 ∼ 370 nm, which is attributed to the effects of photo-generation and photolysis on the surface nanowires, while it showed a dependence on the diameter in the wavelength range of 370 ∼ 650 nm.",
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Influence of diameter on the photoresponse in a networked zinc-oxide nanowire photodetector. / Ha, Ryong; Pyun, Jae Chul; Oh, Hwangyou; Choi, Heon Jin; Choi, Young Jin; Park, Jae Kwan.

In: Journal of the Korean Physical Society, Vol. 53, No. 4, 01.01.2008, p. 1992-1995.

Research output: Contribution to journalArticle

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T1 - Influence of diameter on the photoresponse in a networked zinc-oxide nanowire photodetector

AU - Ha, Ryong

AU - Pyun, Jae Chul

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AU - Choi, Heon Jin

AU - Choi, Young Jin

AU - Park, Jae Kwan

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AB - We report on the photoresponses of networked ZnO nanowire photodetectors fabricated by using a simple, mass-scalable process. ZnO nanowires were synthesized by using a carbothermal reduction process and the diameter of the nanowires was controlled by using the thickness of the gold catalyst. The photoresponse was measured by using photodectors fabricated with nanowires of 80 nm and 300 nm in diameter. The photoresponse showed no dependence on the diameter of the nanowires in the wavelength range of 200 ∼ 370 nm, which is attributed to the effects of photo-generation and photolysis on the surface nanowires, while it showed a dependence on the diameter in the wavelength range of 370 ∼ 650 nm.

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