Luminescent and structural characteristics of ZnO nanorods fabricated by postannealing

Chin Ching Lin; Hung Chou Liao; San-Yuan Chen; Syh Yuh Cheng

doi:10.1116/1.2163893

Luminescent and structural characteristics of ZnO nanorods fabricated by postannealing

Chin Ching Lin, Hung Chou Liao, San-Yuan Chen^*, Syh Yuh Cheng

^*Corresponding author for this work

Department of Materials Science and Engineering

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

2 Scopus citations

Abstract

Well-aligned ZnO nanorods grown on silicon substrates buffered with ZnO film were postannealed at 200-1000 °C in various atmospheres. The optical properties of ZnO nanorods were much improved by annealing at high temperatures in both atmospheres of N2 and O2. This improvement was ascribed to the decrease in structure defects as compared to as-grown ZnO nanorods. However, for the ZnO nanorods annealed in H2 N2, a stronger UV emission occurs at 600 °C; above that the UV emission rapidly disappeared, which was attributed to the collapse of the ZnO nanorods due to H2 etching during a higher-temperature annealing in H2 N2. The crystallinity and optical properties of the ZnO nanorods can be controlled by postannealing treatment.

Original language	English
Pages (from-to)	304-307
Number of pages	4
Journal	Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Volume	24
Issue number	1
DOIs	https://doi.org/10.1116/1.2163893
State	Published - 1 Jan 2006

Access to Document

10.1116/1.2163893

Cite this

@article{8788442870474662ae59149b1405381f,

title = "Luminescent and structural characteristics of ZnO nanorods fabricated by postannealing",

abstract = "Well-aligned ZnO nanorods grown on silicon substrates buffered with ZnO film were postannealed at 200-1000 °C in various atmospheres. The optical properties of ZnO nanorods were much improved by annealing at high temperatures in both atmospheres of N2 and O2. This improvement was ascribed to the decrease in structure defects as compared to as-grown ZnO nanorods. However, for the ZnO nanorods annealed in H2 N2, a stronger UV emission occurs at 600 °C; above that the UV emission rapidly disappeared, which was attributed to the collapse of the ZnO nanorods due to H2 etching during a higher-temperature annealing in H2 N2. The crystallinity and optical properties of the ZnO nanorods can be controlled by postannealing treatment.",

author = "Lin, {Chin Ching} and Liao, {Hung Chou} and San-Yuan Chen and Cheng, {Syh Yuh}",

year = "2006",

month = jan,

day = "1",

doi = "10.1116/1.2163893",

language = "English",

volume = "24",

pages = "304--307",

journal = "Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures",

issn = "1071-1023",

publisher = "AVS Science and Technology Society",

number = "1",

}

TY - JOUR

T1 - Luminescent and structural characteristics of ZnO nanorods fabricated by postannealing

AU - Lin, Chin Ching

AU - Liao, Hung Chou

AU - Chen, San-Yuan

AU - Cheng, Syh Yuh

PY - 2006/1/1

Y1 - 2006/1/1

N2 - Well-aligned ZnO nanorods grown on silicon substrates buffered with ZnO film were postannealed at 200-1000 °C in various atmospheres. The optical properties of ZnO nanorods were much improved by annealing at high temperatures in both atmospheres of N2 and O2. This improvement was ascribed to the decrease in structure defects as compared to as-grown ZnO nanorods. However, for the ZnO nanorods annealed in H2 N2, a stronger UV emission occurs at 600 °C; above that the UV emission rapidly disappeared, which was attributed to the collapse of the ZnO nanorods due to H2 etching during a higher-temperature annealing in H2 N2. The crystallinity and optical properties of the ZnO nanorods can be controlled by postannealing treatment.

AB - Well-aligned ZnO nanorods grown on silicon substrates buffered with ZnO film were postannealed at 200-1000 °C in various atmospheres. The optical properties of ZnO nanorods were much improved by annealing at high temperatures in both atmospheres of N2 and O2. This improvement was ascribed to the decrease in structure defects as compared to as-grown ZnO nanorods. However, for the ZnO nanorods annealed in H2 N2, a stronger UV emission occurs at 600 °C; above that the UV emission rapidly disappeared, which was attributed to the collapse of the ZnO nanorods due to H2 etching during a higher-temperature annealing in H2 N2. The crystallinity and optical properties of the ZnO nanorods can be controlled by postannealing treatment.

UR - http://www.scopus.com/inward/record.url?scp=31544483949&partnerID=8YFLogxK

U2 - 10.1116/1.2163893

DO - 10.1116/1.2163893

M3 - Article

AN - SCOPUS:31544483949

SN - 1071-1023

VL - 24

SP - 304

EP - 307

JO - Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures

JF - Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures

IS - 1

ER -

Luminescent and structural characteristics of ZnO nanorods fabricated by postannealing

Abstract

Access to Document

Other files and links

Fingerprint

Cite this