Vertical nanoporous GaN substrates for photonic engineering: Lu2O3:Eu single crystal thin films as an example

Liu, Jie; Yang, Xiaokun; Chen, Rongrong; Feng, Bin; Zhu, Hongyan; Luan, Caìna; Xiao, Hongdi

doi:10.1016/j.jallcom.2021.162069

Cited by 5 publications

(2 citation statements)

References 35 publications

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“…W. J. Tseng also prepared GaN nanopores and observed similar enhancements in water splitting performance [49]. Increased surface areas have been shown to enhance light absorption effectively [50][51][52][53]. Additionally, reduced sidewalls shorten the migration distance of photo-generated carriers to the GaN/solution interface, reducing the chance of electron-hole recombination [54,55].…”

Section: Introductionmentioning

confidence: 78%

The Fabrication of GaN Nanostructures Using Cost-Effective Methods for Application in Water Splitting

Zhao

et al. 2023

Crystals

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The adjustable bandgap, single crystal structure, and strong chemical inertness of GaN materials make them excellent candidates for water splitting applications. The fabrication of GaN nanostructures can enhance their water splitting performance by increasing their surface area, improving photon absorption, and accelerating photocatalytic reactions. Developing cost-effective methods to fabricate GaN nanostructures is crucial to promote the development of GaN-based materials in water splitting applications. In this review, we introduce the main cost-effective techniques for the fabrication of GaN nanostructures and highlight future development directions.

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Section: Introductionmentioning

confidence: 78%

The Fabrication of GaN Nanostructures Using Cost-Effective Methods for Application in Water Splitting

Zhao

et al. 2023

Crystals

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“…Lu 2 O 3 single crystal as sesquioxide has proven to be prospective for high-power solid-state lasers, high-energy radiation detection, and semiconductors due to its high thermal conductivity, low phonon energy, high-density scintillators, high absorption efficiency, wide band gap, and robust thermal stability [1][2][3][4][5][6][7]. Polishing, as the terminal process of traditional ultra-precision machining, can achieve high surface flatness and roughness, but inevitably produces surface and subsurface damage.…”

Section: Introductionmentioning

confidence: 99%

Surface and Subsurface Quality Assessment of Polished Lu2O3 Single Crystal Using Quasi-Brewster Angle Technique

Yao

Shen

et al. 2021

Front. Phys.

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The sesquioxide Lu2O3 single crystal has attracted tremendous attention as potential host material for high-power solid-state lasers. As polishing is the terminal process of conventional ultra-precision machining, the quality of polished crystal directly impacts the crucial performance indicators of optics. The high melting point of Lu2O3 single crystal makes crystal preparation difficult. Therefore, investigations on the surface/subsurface quality inspection of polished Lu2O3 single crystal are scarce. In this paper, we utilize the quasi-Brewster angle technique (qBAT) based on ellipsometry to inspect the quality of polished Lu2O3 single crystal, achieving fast, non-destructive, and high-sensitive surface/subsurface damage assessment. A systematic crystal processing scheme is designed and polished Lu2O3 crystal samples are obtained. To verify the results of qBAT, the surface and subsurface quality are tested using optical profilometer and transmission electron microscope, respectively. The consistency of the test results demonstrates the feasibility, high sensitivity, and accuracy of the qBAT. To our knowledge, this is the first time that the qBAT is applied to investigate the polished surface/subsurface quality of Lu2O3 single crystal. In conclusion, this method provides a powerful approach to the high-precision characterization of the surface/subsurface quality of Lu2O3 single crystal, and has significant potential for material property study and process optimization during ultra-precision machining.

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Optical properties of large-size and damage-free polished Lu2O3 single crystal covering the ultraviolet-visible-and near-infrared (UV–VIS–NIR) spectral region

Yao

Shen

et al. 2022

Journal of Alloys and Compounds

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Vertical nanoporous GaN substrates for photonic engineering: Lu2O3:Eu single crystal thin films as an example

Cited by 5 publications

References 35 publications

The Fabrication of GaN Nanostructures Using Cost-Effective Methods for Application in Water Splitting

The Fabrication of GaN Nanostructures Using Cost-Effective Methods for Application in Water Splitting

Surface and Subsurface Quality Assessment of Polished Lu2O3 Single Crystal Using Quasi-Brewster Angle Technique

Optical properties of large-size and damage-free polished Lu2O3 single crystal covering the ultraviolet-visible-and near-infrared (UV–VIS–NIR) spectral region

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