Preparation and optical property of gallium zinc oxynitride powder and nanocrystals with sawtooth-like appearance

Atsuo Kamura; Yuji Masubuchi; Teruki Motohashi; Shinichi Kikkawa

doi:10.1016/j.materresbull.2016.11.013

Preparation and optical property of gallium zinc oxynitride powder and nanocrystals with sawtooth-like appearance

Atsuo Kamura, Yuji Masubuchi^*, Teruki Motohashi, Shinichi Kikkawa

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

Gallium zinc oxynitride powder and its nanocrystals were obtained by nitridation of a ZnGa₂O₄ precursor under NH₃ flow. The nitrided powder had the chemical composition of (Ga_0.75Zn_0.23□_0.02) (N_0.71O_0.29), where □ indicates a vacancy, and showed improved crystallinity with a decrease in cationic vacancies compared to that for pristine gallium oxynitride without zinc. Gallium zinc oxynitride nanocrystals with rod-like morphology were obtained by nitridation of the oxide precursor on a NiO pellet. The nanorod crystals were several hundred nanometers wide and several micrometers long. The nanorods had a sawtooth appearance with triangular grains aligned along the length direction of the rods. The nanocrystals with a chemical composition of Ga/Zn = 0.80/0.20 exhibited a broad cathodoluminescence emission at 2.1 eV, similar to the powder products.

Original language	English
Pages (from-to)	130-134
Number of pages	5
Journal	Materials Research Bulletin
Volume	87
DOIs	https://doi.org/10.1016/j.materresbull.2016.11.013
Publication status	Published - 2017 Mar 1
Externally published	Yes

Keywords

A. Nanostructures
A. Nitrides
B. Crystal growth
B. Optical properties
D. Defects

ASJC Scopus subject areas

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

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10.1016/j.materresbull.2016.11.013

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@article{ade1bce7d82440f08b99acf2d814c6c1,

title = "Preparation and optical property of gallium zinc oxynitride powder and nanocrystals with sawtooth-like appearance",

abstract = "Gallium zinc oxynitride powder and its nanocrystals were obtained by nitridation of a ZnGa2O4 precursor under NH3 flow. The nitrided powder had the chemical composition of (Ga0.75Zn0.23□0.02) (N0.71O0.29), where □ indicates a vacancy, and showed improved crystallinity with a decrease in cationic vacancies compared to that for pristine gallium oxynitride without zinc. Gallium zinc oxynitride nanocrystals with rod-like morphology were obtained by nitridation of the oxide precursor on a NiO pellet. The nanorod crystals were several hundred nanometers wide and several micrometers long. The nanorods had a sawtooth appearance with triangular grains aligned along the length direction of the rods. The nanocrystals with a chemical composition of Ga/Zn = 0.80/0.20 exhibited a broad cathodoluminescence emission at 2.1 eV, similar to the powder products.",

keywords = "A. Nanostructures, A. Nitrides, B. Crystal growth, B. Optical properties, D. Defects",

author = "Atsuo Kamura and Yuji Masubuchi and Teruki Motohashi and Shinichi Kikkawa",

year = "2017",

month = mar,

day = "1",

doi = "10.1016/j.materresbull.2016.11.013",

language = "English",

volume = "87",

pages = "130--134",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Preparation and optical property of gallium zinc oxynitride powder and nanocrystals with sawtooth-like appearance

AU - Kamura, Atsuo

AU - Masubuchi, Yuji

AU - Motohashi, Teruki

AU - Kikkawa, Shinichi

PY - 2017/3/1

Y1 - 2017/3/1

N2 - Gallium zinc oxynitride powder and its nanocrystals were obtained by nitridation of a ZnGa2O4 precursor under NH3 flow. The nitrided powder had the chemical composition of (Ga0.75Zn0.23□0.02) (N0.71O0.29), where □ indicates a vacancy, and showed improved crystallinity with a decrease in cationic vacancies compared to that for pristine gallium oxynitride without zinc. Gallium zinc oxynitride nanocrystals with rod-like morphology were obtained by nitridation of the oxide precursor on a NiO pellet. The nanorod crystals were several hundred nanometers wide and several micrometers long. The nanorods had a sawtooth appearance with triangular grains aligned along the length direction of the rods. The nanocrystals with a chemical composition of Ga/Zn = 0.80/0.20 exhibited a broad cathodoluminescence emission at 2.1 eV, similar to the powder products.

AB - Gallium zinc oxynitride powder and its nanocrystals were obtained by nitridation of a ZnGa2O4 precursor under NH3 flow. The nitrided powder had the chemical composition of (Ga0.75Zn0.23□0.02) (N0.71O0.29), where □ indicates a vacancy, and showed improved crystallinity with a decrease in cationic vacancies compared to that for pristine gallium oxynitride without zinc. Gallium zinc oxynitride nanocrystals with rod-like morphology were obtained by nitridation of the oxide precursor on a NiO pellet. The nanorod crystals were several hundred nanometers wide and several micrometers long. The nanorods had a sawtooth appearance with triangular grains aligned along the length direction of the rods. The nanocrystals with a chemical composition of Ga/Zn = 0.80/0.20 exhibited a broad cathodoluminescence emission at 2.1 eV, similar to the powder products.

KW - A. Nanostructures

KW - A. Nitrides

KW - B. Crystal growth

KW - B. Optical properties

KW - D. Defects

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U2 - 10.1016/j.materresbull.2016.11.013

DO - 10.1016/j.materresbull.2016.11.013

M3 - Article

AN - SCOPUS:85000997375

SN - 0025-5408

VL - 87

SP - 130

EP - 134

JO - Materials Research Bulletin

JF - Materials Research Bulletin

ER -

Preparation and optical property of gallium zinc oxynitride powder and nanocrystals with sawtooth-like appearance

Abstract

Keywords

ASJC Scopus subject areas

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