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Improvement of thermal management of high-power GaN-based light-emitting diodes
Abstract The thermal management of high-power light-emitting-diode (LED) devices employing various die-attach materials is analyzed. Three types of die-attach materials are tested, including silverExpand
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High-quality InGaN∕GaN heterojunctions and their photovoltaic effects
High-quality p-GaN∕i-In0.1Ga0.9N∕n-GaN heterojunctional epilayers are grown on (0001)-oriented sapphire substrates by metal organic chemical vapor deposition. The Pendellosung fringes around theExpand
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  • Open Access
Optimized Thermal Management From a Chip to a Heat Sink for High-Power GaN-Based Light-Emitting Diodes
To improve heat dissipation of sapphire-based LEDs, we develop a new LED package with a dual heat spreader design. The first heat spreader is a cup-shaped copper sheet, which was directly contactedExpand
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High performance of Ga-doped ZnO transparent conductive layers using MOCVD for GaN LED applications.
High performance of Ga-doped ZnO (GZO) prepared using metalorganic chemical vapor deposition (MOCVD) was employed in GaN blue light-emitting diodes (LEDs) as transparent conductive layers (TCL). ByExpand
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  • Open Access
Formation process and material properties of reactive sputtered IrO2 thin films
Abstract IrO 2 thin films were deposited by reactive sputtering in various O 2 /(O 2 +Ar) mixing ratios (OMR). The systematic study of the OMR effect on the properties of IrO 2 thin films has beenExpand
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  • Open Access
See-Through Ga 2 O 3 Solar-Blind Photodetectors for Use in Harsh Environments
This paper demonstrates the high-temperature op- eration of fully transparent solar-blind deep ultraviolet (DUV) metal-semiconductor-metal (MSM) photodetectors (PDs) employ- ing β-Ga2 O3 thin filmsExpand
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  • Open Access
Fabrication of Pyramidal Patterned Sapphire Substrates for High-Efficiency InGaN-Based Light Emitting Diodes
In this study, a wet-etched pyramidal patterned sapphire substrate (PSS) was used to fabricate the near-ultraviolet InGaN-based light-emitting diodes (LEDs). The pyramidal PSS was etched using a 3H 2Expand
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PMMA-based capillary electrophoresis electrochemical detection microchip fabrication
In this paper, a 50 ?m (depth) ? 50 ?m (width) microfluidic channel is made on a poly(methyl methacrylate) (PMMA) substrate using thick photoresist. Openings were drilled for buffer reservoirs on anExpand
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High-performance transparent barrier films of SiOx/SiNx stacks on flexible polymer substrates
A transparent barrier structure consisting of silicon oxide (SiO x )/silicon nitride (SiN x ) stacks was deposited on a polycarbonate substrate at 80°C by plasma-enhanced chemical vapor deposition.Expand
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