PL Tunable GaN Nanoparticles Synthesis through Femtosecond Pulsed Laser Ablation in Different Environments
1
College of Electronic Science and Engineering, Jilin University, Changchun 130012, China
2
College of physics, Jilin University, Changchun 130012, China
*
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(3), 439; https://doi.org/10.3390/nano10030439
Received: 5 February 2020
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Revised: 22 February 2020
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Accepted: 26 February 2020
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Published: 29 February 2020
(This article belongs to the Section Synthesis, Interfaces and Nanostructures)
The tunable photoluminescence (PL) property is very important for gallium nitride (GaN) nanoparticles in the application of ultraviolet and blue optoelectronic devices, while conventional methods are not so satisfactory that alternative methods for preparing GaN nanoparticles should be studied. In this paper, ultra-small and well dispersed GaN nanoparticles are fabricated through femtosecond pulse laser ablation in air, water and ethanol. For the PL spectra of GaN nanoparticles, there are no shifts in air, red shifts in water and blue shifts in ethanol compared with the intrinsic PL spectra of bulk GaN. The X-ray photoelectron spectroscopy (XPS) results demonstrate that the various PL spectra can be due to the different components inside the GaN nanoparticles, which not only have effect on the PL emissions, but also greatly influence the intensity of PL. This study validates that the ablation environment has a great adjustable effect on the properties of GaN nanoparticles.
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Keywords:
GaN-NPs; fs-PLAL; tunable PL properties; ablation environments
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MDPI and ACS Style
Hao, J.; Xu, S.; Gao, B.; Pan, L. PL Tunable GaN Nanoparticles Synthesis through Femtosecond Pulsed Laser Ablation in Different Environments. Nanomaterials 2020, 10, 439. https://doi.org/10.3390/nano10030439
AMA Style
Hao J, Xu S, Gao B, Pan L. PL Tunable GaN Nanoparticles Synthesis through Femtosecond Pulsed Laser Ablation in Different Environments. Nanomaterials. 2020; 10(3):439. https://doi.org/10.3390/nano10030439
Chicago/Turabian StyleHao, Juan, Sijia Xu, Bingrong Gao, and Lingyun Pan. 2020. "PL Tunable GaN Nanoparticles Synthesis through Femtosecond Pulsed Laser Ablation in Different Environments" Nanomaterials 10, no. 3: 439. https://doi.org/10.3390/nano10030439
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