Optical properties and characterization of zinc nitride nanoneedles prepared from ball-milled Zn powders

Waheed S. Khan; Chuanbao Cao; Dong Yu Ping; Ghulam Nabi; Sajad Hussain; Faheem K. Butt; Tai Cao

doi:10.1016/j.matlet.2011.01.040

Optical properties and characterization of zinc nitride nanoneedles prepared from ball-milled Zn powders

Waheed S. Khan, Chuanbao Cao^*, Dong Yu Ping, Ghulam Nabi, Sajad Hussain, Faheem K. Butt, Tai Cao

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

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

20 Citations (Scopus)

Abstract

Zinc nitride nanoneedles (ZNNs) with diameters at stem and tip parts as 200-300 nm and 30-70 nm respectively have been prepared by the nitridation of ball-milled zinc powders at 600 °C for 120 min under NH₃ gas environment. The structural, compositional and morphological characterizations of the product were conducted by X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy and transmission electron microscopy. From transmission spectrum data, an indirect band gap of 2.72 eV has been calculated for ZNNs whereas photoluminescence studies exhibited a strong UV excitonic mission band at 395 nm as well as two weak defect related blue emissions at 453 and 465 nm. A vapor-solid (VS) process based growth mechanism for the formation of ZNNs has also been discussed briefly.

Original language	English
Pages (from-to)	1264-1267
Number of pages	4
Journal	Materials Letters
Volume	65
Issue number	9
DOIs	https://doi.org/10.1016/j.matlet.2011.01.040
Publication status	Published - 15 May 2011

Keywords

Nanocrystalline materials
Optical properties
Semiconductors

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10.1016/j.matlet.2011.01.040

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title = "Optical properties and characterization of zinc nitride nanoneedles prepared from ball-milled Zn powders",

abstract = "Zinc nitride nanoneedles (ZNNs) with diameters at stem and tip parts as 200-300 nm and 30-70 nm respectively have been prepared by the nitridation of ball-milled zinc powders at 600 °C for 120 min under NH3 gas environment. The structural, compositional and morphological characterizations of the product were conducted by X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy and transmission electron microscopy. From transmission spectrum data, an indirect band gap of 2.72 eV has been calculated for ZNNs whereas photoluminescence studies exhibited a strong UV excitonic mission band at 395 nm as well as two weak defect related blue emissions at 453 and 465 nm. A vapor-solid (VS) process based growth mechanism for the formation of ZNNs has also been discussed briefly.",

keywords = "Nanocrystalline materials, Optical properties, Semiconductors",

author = "Khan, {Waheed S.} and Chuanbao Cao and Ping, {Dong Yu} and Ghulam Nabi and Sajad Hussain and Butt, {Faheem K.} and Tai Cao",

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T1 - Optical properties and characterization of zinc nitride nanoneedles prepared from ball-milled Zn powders

AU - Khan, Waheed S.

AU - Cao, Chuanbao

AU - Ping, Dong Yu

AU - Nabi, Ghulam

AU - Hussain, Sajad

AU - Butt, Faheem K.

AU - Cao, Tai

PY - 2011/5/15

Y1 - 2011/5/15

N2 - Zinc nitride nanoneedles (ZNNs) with diameters at stem and tip parts as 200-300 nm and 30-70 nm respectively have been prepared by the nitridation of ball-milled zinc powders at 600 °C for 120 min under NH3 gas environment. The structural, compositional and morphological characterizations of the product were conducted by X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy and transmission electron microscopy. From transmission spectrum data, an indirect band gap of 2.72 eV has been calculated for ZNNs whereas photoluminescence studies exhibited a strong UV excitonic mission band at 395 nm as well as two weak defect related blue emissions at 453 and 465 nm. A vapor-solid (VS) process based growth mechanism for the formation of ZNNs has also been discussed briefly.

AB - Zinc nitride nanoneedles (ZNNs) with diameters at stem and tip parts as 200-300 nm and 30-70 nm respectively have been prepared by the nitridation of ball-milled zinc powders at 600 °C for 120 min under NH3 gas environment. The structural, compositional and morphological characterizations of the product were conducted by X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy and transmission electron microscopy. From transmission spectrum data, an indirect band gap of 2.72 eV has been calculated for ZNNs whereas photoluminescence studies exhibited a strong UV excitonic mission band at 395 nm as well as two weak defect related blue emissions at 453 and 465 nm. A vapor-solid (VS) process based growth mechanism for the formation of ZNNs has also been discussed briefly.

KW - Nanocrystalline materials

KW - Optical properties

KW - Semiconductors

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DO - 10.1016/j.matlet.2011.01.040

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VL - 65

SP - 1264

EP - 1267

JO - Materials Letters

JF - Materials Letters

IS - 9

ER -

Optical properties and characterization of zinc nitride nanoneedles prepared from ball-milled Zn powders

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Keywords

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