DOI: 10.1002/adfm.200304434. Characterization and Field‐Emission Properties of Needle‐like Zinc Oxide Nanowires Grown Vertically on Conductive Zinc Oxide Films

Characterization and Field‐Emission Properties of Needle‐like Zinc Oxide Nanowires Grown Vertically on Conductive Zinc Oxide Films

10.1002/adfm.200304434

Crossref journal-article

Wiley

Advanced Functional Materials (311)

Abstract

AbstractNeedle‐like ZnO nanowires with high density are grown uniformly and vertically over an entire Ga‐doped conductive ZnO film at 550 °C. The nanowires are grown preferentially in the c‐axis direction. The X‐ray diffraction (XRD) θ‐scan curve shows a full width at half maximum (FWHM) value of 2°. This indicates that the c‐axes of the nanorods are along the normal direction of the substrate surface. The investigation using high‐resolution transmission electron microscopy (HRTEM) confirmed that each nanowire is a single crystal. A room‐temperature photoluminescence (PL) spectrum of the wires consists of a strong and sharp UV emission band at 380 nm and a weak and broad green–yellow band. It reveals a low concentration of oxygen vacancies in the ZnO nanowires and their high optical quality. Field electron emission from the wires was also investigated. The turn‐on field for the ZnO nanowires was found to be about 18 V μm–1 at a current density of 0.01 μA cm–2. The emission current density from the ZnO nanowires reached 0.1 mA cm–2 at a bias field of 24 V μm–1.

Bibliography

Tseng, Y. âK., Huang, C. âJ., Cheng, H. âM., Lin, I. âN., Liu, K. âS., & Chen, I. âC. (2003). Characterization and FieldâEmission Properties of Needleâlike Zinc Oxide Nanowires Grown Vertically on Conductive Zinc Oxide Films. Advanced Functional Materials, 13(10), 811â814. Portico.

Authors 6

Y.‐K. Tseng (first)
C.‐J. Huang (additional)
H.‐M. Cheng (additional)
I.‐N. Lin (additional)
K.‐S. Liu (additional)
I.‐C. Chen (additional)

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Dates

Type	When
Created	21 years, 10 months ago (Oct. 8, 2003, 6:03 a.m.)
Deposited	1 year, 9 months ago (Nov. 16, 2023, 9:44 p.m.)
Indexed	2 weeks, 5 days ago (Aug. 3, 2025, 7:01 p.m.)
Issued	21 years, 10 months ago (Oct. 2, 2003)
Published	21 years, 10 months ago (Oct. 2, 2003)
Published Online	21 years, 10 months ago (Oct. 7, 2003)
Published Print	21 years, 10 months ago (Oct. 2, 2003)

Funders 0

None

BibTeX

@article{Tseng_2003, title={Characterization and Field‐Emission Properties of Needle‐like Zinc Oxide Nanowires Grown Vertically on Conductive Zinc Oxide Films}, volume={13}, ISSN={1616-3028}, url={http://dx.doi.org/10.1002/adfm.200304434}, DOI={10.1002/adfm.200304434}, number={10}, journal={Advanced Functional Materials}, publisher={Wiley}, author={Tseng, Y.‐K. and Huang, C.‐J. and Cheng, H.‐M. and Lin, I.‐N. and Liu, K.‐S. and Chen, I.‐C.}, year={2003}, month=oct, pages={811–814} }

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