Search Results - "Tan, Swee Tiam"
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Self-screening of the quantum confined Stark effect by the polarization induced bulk charges in the quantum barriers
Published in Applied physics letters (16-06-2014)“…InGaN/GaN light-emitting diodes (LEDs) grown along the polar orientations significantly suffer from the quantum confined Stark effect (QCSE) caused by the…”
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High-efficiency and low-loss gallium nitride dielectric metasurfaces for nanophotonics at visible wavelengths
Published in Applied physics letters (27-11-2017)“…The dielectric nanophotonics research community is currently exploring transparent material platforms (e.g., TiO2, Si3N4, and GaP) to realize compact high…”
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Bandgap-Engineered Ga-Rich GaZnO Thin Films for UV Transparent Electronics
Published in IEEE transactions on electron devices (01-12-2009)“…Ga-rich GaZnO thin films were prepared by metal-organic chemical vapor deposition. The optical bandgap of GaZnO films can be engineered from 3.3 to 4.9 eV by…”
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A hole accelerator for InGaN/GaN light-emitting diodes
Published in Applied physics letters (13-10-2014)“…The quantum efficiency of InGaN/GaN light-emitting diodes (LEDs) has been significantly limited by the insufficient hole injection, and this is caused by the…”
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Augmenting Light‐to‐Heat Conversion Through 3D Scalable Palm Fiber for Energy Efficient Photothermal Solar Steam Generation
Published in Solar RRL (01-04-2024)“…Tackling water scarcity is a pressing challenge, propelling recent advancements in solar steam generation (SSG). Recently, 3D photoabsorbers have outperformed…”
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Polarization self-screening in [0001] oriented InGaN/GaN light-emitting diodes for improving the electron injection efficiency
Published in Applied physics letters (23-06-2014)“…InGaN/GaN light-emitting diodes (LEDs) grown along the [0001] orientation inherit very strong polarization induced electric fields. This results in a reduced…”
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On the origin of the electron blocking effect by an n -type AlGaN electron blocking layer
Published in Applied physics letters (17-02-2014)“…In this work, the origin of electron blocking effect of n-type Al0.25Ga0.75N electron blocking layer (EBL) for c+ InGaN/GaN light-emitting diodes has been…”
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A hole modulator for InGaN/GaN light-emitting diodes
Published in Applied physics letters (09-02-2015)“…The low p-type doping efficiency of the p-GaN layer has severely limited the performance of InGaN/GaN light-emitting diodes (LEDs) due to the ineffective hole…”
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Light Generation in Lead Halide Perovskite Nanocrystals: LEDs, Color Converters, Lasers, and Other Applications
Published in Small (Weinheim an der Bergstrasse, Germany) (01-11-2019)“…Facile solution processing lead halide perovskite nanocrystals (LHP‐NCs) exhibit superior properties in light generation, including a wide color gamut, a high…”
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Simultaneous enhancement of electron overflow reduction and hole injection promotion by tailoring the last quantum barrier in InGaN/GaN light-emitting diodes
Published in Applied physics letters (21-04-2014)“…A three-step graded undoped-InGaN layers embedded between the GaN last quantum barrier layer and the p-AlGaN electron blocking layer was proposed and its…”
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Highly Efficient Visible Colloidal Lead-Halide Perovskite Nanocrystal Light-Emitting Diodes
Published in Nano letters (09-05-2018)“…Lead-halide perovskites have been attracting attention for potential use in solid-state lighting. Following the footsteps of solar cells, the field of…”
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Highly Flexible, Electrically Driven, Top-Emitting, Quantum Dot Light-Emitting Stickers
Published in ACS nano (26-08-2014)“…Flexible information displays are key elements in future optoelectronic devices. Quantum dot light-emitting diodes (QLEDs) with advantages in color quality,…”
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High brightness formamidinium lead bromide perovskite nanocrystal light emitting devices
Published in Scientific reports (09-11-2016)“…Formamidinium lead halide (FAPbX 3 ) has attracted greater attention and is more prominent recently in photovoltaic devices due to its broad absorption and…”
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MoS2 functionalized AlGaN/GaN transistor based room temperature NO2 gas sensor
Published in Sensors and actuators. A. Physical. (01-08-2022)“…The ability to monitor toxic gases under room-temperature conditions, with enhanced response and selectivity present in the atmosphere, is still considered as…”
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InGaN/GaN light-emitting diode with a polarization tunnel junction
Published in Applied physics letters (13-05-2013)“…We report InGaN/GaN light-emitting diodes (LED) comprising in situ integrated p+-GaN/InGaN/n+-GaN polarization tunnel junctions. Improved current spreading and…”
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Solution Processed Tungsten Oxide Interfacial Layer for Efficient Hole-Injection in Quantum Dot Light-Emitting Diodes
Published in Small (Weinheim an der Bergstrasse, Germany) (29-01-2014)“…A highly efficient and stable QLED using an inorganic WO3 nanoparticle film as a hole injection layer is demonstrated.The resulting WO3 nanoparticle‐based…”
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A bright cadmium-free, hybrid organic/quantum dot white light-emitting diode
Published in Applied physics letters (03-12-2012)“…We report a bright cadmium-free, InP-based quantum dot light-emitting diode (QD-LED) with efficient green emission. A maximum brightness close to 700 cd/m2…”
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Investigation of p-type depletion doping for InGaN/GaN-based light-emitting diodes
Published in Applied physics letters (16-01-2017)“…Due to the limitation of the hole injection, p-type doping is essential to improve the performance of InGaN/GaN multiple quantum well light-emitting diodes…”
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Structure and optical properties of La-doped ZnO thin films at room temperature
Published in Processing and Application of Ceramics (01-01-2023)“…La-doped ZnO (with 0, 1, 5 and 7 wt.% La) thin films were deposited on Si substrates by ultrasonic spray pyrolysis, using frequency of 1.7MHz, and heated at…”
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Editorial: Advanced Nanomaterials for Light-Emitting Diodes and Solar Cells
Published in Frontiers in chemistry (29-07-2021)Get full text
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