Quantum well - Wikipedia
WEBA quantum well is a potential well with only discrete energy values. The classic model used to demonstrate a quantum well is to confine particles, which were initially free to move in three dimensions, to two dimensions, by forcing them to occupy a planar region.
Demonstration of 621-nm-wavelength InGaN-based single-quantum-well …
WEBJun 27, 2022 · This work describes InGaN-based red single-quantum-well (SQW) LEDs with an emission peak wavelength of over 621 nm. The LEDs have a light-output power of 1.7 mW at 20 mA of injection current for an EQE of 4.3%. The details of the optoelectrical properties are discussed.
Highly efficient blue InGaN nanoscale light-emitting diodes
WEBAug 3, 2022 · Using a sol–gel passivation method, the fabrication of blue InGaN nanorod-LEDs with the highest external quantum efficiency value ever reported for LEDs in the nanoscale is demonstrated.
Advancing high-performance visible light communication with …
WEBMar 25, 2024 · This study showcases a method for achieving high-performance yellow and red micro-LEDs through precise control of indium content within quantum wells. By employing a hybrid quantum well...
LED Materials: Epitaxy and Quantum Well Structures
WEBJan 1, 2016 · This chapter describes how, in order to achieve low droop and high-efficiency light-emitting diodes (LEDs), we investigated the following multiple quantum wells (MQWs) and electron-blocking layer (EBL) design to enhance our LED devices: graded-thickness multiple quantum wells (GQWs), graded-composition multiple quantum barriers (GQBs ...
Electroluminescence properties of InGaN/GaN multiple quantum well …
WEBNov 10, 2017 · Two InGaN/GaN multiple quantum well (MQW)-based blue light emitting diodes (LEDs) emitting photons at approximately the same wavelength, with different indium contents and well widths, are...
Monolithic multi-color, multi-quantum well semiconductor LED
WEBAug 3, 2010 · A monolithic, multi-color semiconductor light emitting diode (LED) is formed with a multi-bandgap, multi-quantum well (MQW) active light emitting region which emits light at spaced-apart wavelength bands or regions ranging from UV to red.
Effect of quantum barrier width and quantum resonant tunneling …
WEBMar 1, 2021 · LEDs are based on resonant tunneling diode (RTD) quantum well (QW) structures, which exhibit the characteristic property of negative differential resistance (NDR) that is crucial for LED operation.
WEBA quantum well is a particular kind of heterostructure in which one thin "well" layer is surrounded by two "barrier" layers. Both electrons and holes see lower energy in the "well" layer, hence the name (by analogy with a "potential well").
High Efficiency LED Designs Using Quantum Well Engineering
WEBHigh Efficiency LED Designs Using Quantum Well Engineering. T2022-149 Achieving high efficiency LEDs with green, amber and longer wavelengths using III-nitride/II-IV-nitride heterostructures as the active media. The Need.
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