Design of patterned sapphire substrates in flip-chip LEDs for improvement of light-extraction efficiencies
Sign Up to like & getrecommendations! Published in 2018 at "Optical and Quantum Electronics"
DOI: 10.1007/s11082-018-1414-3
Abstract: Patterned sapphire substrates (PSSs) in flip chip light-emitting diodes (FC-LEDs) were designed to improve the light extraction efficiencies (LEEs). Two typical types were considered in the cross-section of the PSS pattern; an extruded type and… read more here.
Keywords: patterned sapphire; flip chip; light extraction; extraction efficiencies ... See more keywords
Fabrication of nano-cavity patterned sapphire substrate using self-assembly meshed Pt thin film on c-plane sapphire substrate
Sign Up to like & getrecommendations! Published in 2017 at "Thin Solid Films"
DOI: 10.1016/j.tsf.2017.03.015
Abstract: Abstract In this work, a nano-cavity patterned sapphire substrate (nc-PSS) is fabricated by using a self-formed meshed Pt thin film on a c-plane sapphire substrate. The light output power of a GaN-based light emitting diode… read more here.
Keywords: sapphire substrate; patterned sapphire; plane sapphire; sapphire ... See more keywords
Three dimensional characterization of GaN-based light emitting diode grown on patterned sapphire substrate by confocal Raman and photoluminescence spectromicroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep45519
Abstract: We performed depth-resolved PL and Raman spectral mappings of a GaN-based LED structure grown on a patterned sapphire substrate (PSS). Our results showed that the Raman mapping in the PSS-GaN heterointerface and the PL mapping… read more here.
Keywords: grown patterned; sapphire substrate; patterned sapphire; raman ... See more keywords
Application of patterned sapphire substrate for III-nitride light-emitting diodes.
Sign Up to like & getrecommendations! Published in 2022 at "Nanoscale"
DOI: 10.1039/d1nr08221c
Abstract: Recent decades have witnessed flourishing prosperity of III-nitride emitters in solid-state lighting and high-resolution displays. As one of the widely used substrates, sapphire shows superiority for heteroepitaxial growth of III-nitride light-emitting diode (LED) structure, due… read more here.
Keywords: iii nitride; patterned sapphire; nitride light; light emitting ... See more keywords
Suppressing optical crosstalk for GaN/InGaN based flip-chip micro light-emitting diodes by using an air-cavity patterned sapphire substrate as a light filter.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.476695
Abstract: In this work, by using three-dimensional finite-difference time-domain (3D FDTD) method, the effect of conventional nano-patterned sapphire substrate (NPSS) on the optical crosstalk and the light extraction efficiency (LEE) for InGaN/GaN-based flip-chip micro light-emitting diodes… read more here.
Keywords: optical crosstalk; patterned sapphire; air; light ... See more keywords
The Effect of Nitridation on Sputtering AlN on Composited Patterned Sapphire Substrate
Sign Up to like & getrecommendations! Published in 2023 at "Materials"
DOI: 10.3390/ma16031104
Abstract: Here, we report on the epitaxial growth of GaN on patterned SiO2-covered cone-shaped patterned sapphire surfaces (PSS). Physical vapor deposition (PVD) AlN films were used as buffers deposited on the SiO2-PSS substrates. The gallium nitride… read more here.
Keywords: growth; patterned sapphire; microscopy; effect nitridation ... See more keywords
Suppressing the Initial Growth of Sidewall GaN by Modifying Micron-Sized Patterned Sapphire Substrate with H3PO4-Based Etchant
Sign Up to like & getrecommendations! Published in 2018 at "Micromachines"
DOI: 10.3390/mi9120622
Abstract: Micron-sized patterned sapphire substrates (PSS) are used to improve the performance of GaN-based light-emitting diodes (LEDs). However, the growth of GaN is initiated not only from the bottom c-plane but also from the sidewall of… read more here.
Keywords: patterned sapphire; micron; sized patterned; gan ... See more keywords
LSP-SPP Coupling Structure Based on Three-Dimensional Patterned Sapphire Substrate for Surface Enhanced Raman Scattering Sensing
Sign Up to like & getrecommendations! Published in 2023 at "Nanomaterials"
DOI: 10.3390/nano13091518
Abstract: Although the fabrication of controllable three-dimensional (3D) microstructures on substrates has been proposed as an effective solution for SERS, there remains a gap in the detection and manufacturability of 3D substrates with high performance. In… read more here.
Keywords: patterned sapphire; surface; three dimensional; substrate ... See more keywords