Effects of processing parameters on ultraviolet emission of In-doped ZnO nanodisks grown by carbothermal reduction

Po Fan Lin; Chih Yuan Ko; Wen Tai Lin; C. T. Lee

doi:10.1016/j.matlet.2006.07.126

Effects of processing parameters on ultraviolet emission of In-doped ZnO nanodisks grown by carbothermal reduction

Po Fan Lin, Chih Yuan Ko, Wen Tai Lin, C. T. Lee

Department of Photonics

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

14 Citations (Scopus)

Abstract

Effects of cooling rate and oxygen partial pressure in flowing Ar on ultraviolet (UV) emission of In-doped ZnO nanodisks grown by carbothermal reduction at 1000 °C were studied. The In doping favored the growth of ZnO nanodisks instead of ZnO nanowires. Air-cooled ZnO nanodisks showed a strong green emission, while furnace cooling in conjunction with introducing O₂, around 1.0%, into flowing Ar during growth significantly enhanced the growth and UV emission of ZnO nanodisks. The causes can be attributed to the reduction of oxygen vacancies and surface defects in ZnO nanodisks. However, higher oxygen partial pressure in flowing Ar resulted in a decrease in the Zn vapor and thus suppressed the growth and UV emission of ZnO nanodisks.

Original language	English
Pages (from-to)	1767-1770
Number of pages	4
Journal	Materials Letters
Volume	61
Issue number	8-9
DOIs	https://doi.org/10.1016/j.matlet.2006.07.126
Publication status	Published - 2007 Apr

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2006.07.126

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title = "Effects of processing parameters on ultraviolet emission of In-doped ZnO nanodisks grown by carbothermal reduction",

abstract = "Effects of cooling rate and oxygen partial pressure in flowing Ar on ultraviolet (UV) emission of In-doped ZnO nanodisks grown by carbothermal reduction at 1000 °C were studied. The In doping favored the growth of ZnO nanodisks instead of ZnO nanowires. Air-cooled ZnO nanodisks showed a strong green emission, while furnace cooling in conjunction with introducing O2, around 1.0%, into flowing Ar during growth significantly enhanced the growth and UV emission of ZnO nanodisks. The causes can be attributed to the reduction of oxygen vacancies and surface defects in ZnO nanodisks. However, higher oxygen partial pressure in flowing Ar resulted in a decrease in the Zn vapor and thus suppressed the growth and UV emission of ZnO nanodisks.",

author = "Lin, {Po Fan} and Ko, {Chih Yuan} and Lin, {Wen Tai} and Lee, {C. T.}",

note = "Funding Information: This work was sponsored in part by the Republic of China National Science Council under Contract No. NSC94-2216-E-006-025.",

year = "2007",

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doi = "10.1016/j.matlet.2006.07.126",

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volume = "61",

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journal = "Materials Letters",

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TY - JOUR

T1 - Effects of processing parameters on ultraviolet emission of In-doped ZnO nanodisks grown by carbothermal reduction

AU - Lin, Po Fan

AU - Ko, Chih Yuan

AU - Lin, Wen Tai

AU - Lee, C. T.

N1 - Funding Information: This work was sponsored in part by the Republic of China National Science Council under Contract No. NSC94-2216-E-006-025.

PY - 2007/4

Y1 - 2007/4

N2 - Effects of cooling rate and oxygen partial pressure in flowing Ar on ultraviolet (UV) emission of In-doped ZnO nanodisks grown by carbothermal reduction at 1000 °C were studied. The In doping favored the growth of ZnO nanodisks instead of ZnO nanowires. Air-cooled ZnO nanodisks showed a strong green emission, while furnace cooling in conjunction with introducing O2, around 1.0%, into flowing Ar during growth significantly enhanced the growth and UV emission of ZnO nanodisks. The causes can be attributed to the reduction of oxygen vacancies and surface defects in ZnO nanodisks. However, higher oxygen partial pressure in flowing Ar resulted in a decrease in the Zn vapor and thus suppressed the growth and UV emission of ZnO nanodisks.

AB - Effects of cooling rate and oxygen partial pressure in flowing Ar on ultraviolet (UV) emission of In-doped ZnO nanodisks grown by carbothermal reduction at 1000 °C were studied. The In doping favored the growth of ZnO nanodisks instead of ZnO nanowires. Air-cooled ZnO nanodisks showed a strong green emission, while furnace cooling in conjunction with introducing O2, around 1.0%, into flowing Ar during growth significantly enhanced the growth and UV emission of ZnO nanodisks. The causes can be attributed to the reduction of oxygen vacancies and surface defects in ZnO nanodisks. However, higher oxygen partial pressure in flowing Ar resulted in a decrease in the Zn vapor and thus suppressed the growth and UV emission of ZnO nanodisks.

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JO - Materials Letters

JF - Materials Letters

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Effects of processing parameters on ultraviolet emission of In-doped ZnO nanodisks grown by carbothermal reduction

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