DOI: 10.1063/1.1763633. Photoresponse of sol-gel-synthesized ZnO nanorods

Photoresponse of sol-gel-synthesized ZnO nanorods

10.1063/1.1763633

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

ZnO nanorods were grown on SiO2/Si substrates by a sol-gel method at low temperatures of around T=95 °C. The diameters and the lengths of ZnO nanorods increased at high concentrations of zinc nitrate hexahydrate and methenamine solution. Current–voltage characteristics of the ZnO nanorods network followed a typical nonlinear behavior with significant photoresponse below λ&lt;400 nm in air, and the conductance was enhanced in vacuum with negligible photoresponse. In photoluminescence (PL) and photocurrent (PC) spectra, the PL peak (λpeak=380 nm and 3.26 eV) did not match the PC edge (λedge=400 nm and 3.1 eV), indicating the nondirect band-gap transition in photocurrent. The origin of the photocurrent was discussed from the point of the influence of the desorption of adsorbed water molecules on the surface or inside the ZnO nanorods.

Bibliography

Ahn, S. E., Lee, J. S., Kim, H., Kim, S., Kang, B. H., Kim, K. H., & Kim, G. T. (2004). Photoresponse of sol-gel-synthesized ZnO nanorods. Applied Physics Letters, 84(24), 5022â5024.

Authors 7

Seung Eon Ahn (first)
Jong Soo Lee (additional)
Hyunsuk Kim (additional)
Sangsig Kim (additional)
Byung Hyun Kang (additional)
Kang Hyun Kim (additional)
Gyu Tae Kim (additional)

References 16 Referenced 258

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10.1063/1.1507617 / Appl. Phys. Lett. (2002)
10.1002/1521-4095(200008)12:16<1186::AID-ADMA1186>3.0.CO;2-F / Adv. Mater. (Weinheim, Ger.) (2000)
10.1126/science.1060367 / Science (2001)
10.1063/1.1342050 / Appl. Phys. Lett. (2001)
10.1021/jp025969j / J. Phys. Chem. B (2002)
{'key': '2024020403184096600_r6a', 'first-page': '215', 'volume': '14', 'year': '2000', 'journal-title': 'Adv. Mater. (Weinheim, Ger.)'} / Adv. Mater. (Weinheim, Ger.) (2000)
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10.1021/ja038636o / J. Am. Chem. Soc. (2004)
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{'key': '2024020403184096600_r13'}
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Dates

Type	When
Created	21 years, 2 months ago (June 1, 2004, 6:03 p.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 10:18 p.m.)
Indexed	1 month, 3 weeks ago (July 1, 2025, 4:37 p.m.)
Issued	21 years, 2 months ago (June 14, 2004)
Published	21 years, 2 months ago (June 14, 2004)
Published Print	21 years, 2 months ago (June 14, 2004)

Funders 0

None

BibTeX

@article{Ahn_2004, title={Photoresponse of sol-gel-synthesized ZnO nanorods}, volume={84}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1763633}, DOI={10.1063/1.1763633}, number={24}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Ahn, Seung Eon and Lee, Jong Soo and Kim, Hyunsuk and Kim, Sangsig and Kang, Byung Hyun and Kim, Kang Hyun and Kim, Gyu Tae}, year={2004}, month=jun, pages={5022–5024} }

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