Generation of ultra-small InN nanocrystals by pulsed laser ablation of suspension in organic solution

Date
2017-03
Authors
Kurşungöz, C.
U. Şimşek, E.
Tuzaklı, R.
Ortaç, B.
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Supervisor
Co-Advisor
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Instructor
Source Title
Applied Physics A: Materials Science and Processing
Print ISSN
0947-8396
Electronic ISSN
Publisher
Springer Verlag
Volume
123
Issue
209
Pages
1 - 10
Language
English
Type
Article
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Abstract

Nanostructures of InN have been extensively investigated since nano-size provides a number of advantages allowing applications in nanoscale electronic and optoelectronic devices. It is quite important to obtain pure InN nanocrystals (InN-NCs) to reveal the characteristic features, which gain interest in the literature. Here, we proposed a new approach for the synthesis of ultra-small hexagonal InN-NCs by using suspension of micron-sized InN powder in ethanol with pulsed laser ablation method. The liquid environment, laser energy and ablation time were optimized and a post-synthesis treatment, centrifugation, was performed to achieve InN-NCs with the smallest size. Besides, the micron-sized InN powder suspension, as a starting material, enabled us to obtain InN-NCs having diameters smaller than 5 nm. We also presented a detailed characterization of InN-NCs and demonstrated that the formation mechanism mainly depends on the fragmentation due to laser irradiation of the suspension.

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Keywords
Ablation, Laser ablation, Nanocrystalline powders, Nanocrystals, Optoelectronic devices, Organic lasers, Formation mechanism, Laser energies, Liquid environment, Nanoscale electronics, New approaches, Organic solutions, Post-synthesis treatment, Powder suspension, Pulsed lasers
Citation
Published Version (Please cite this version)