Design, Simulations, and Optimizations of Mid-infrared Multiple Quantum Well LEDs

Ding, Ying; Meriggi, Laura; Steer, Matthew J.; Fan, Weijun; Bulashevich, K. A.; Thayne, Iain; MacGregor, Calum; Ironside, C. N.; Sorel, Marc

doi:10.1016/j.proeng.2015.10.153

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…Infrared LEDs or lasers are used as the light source in the monitor. GaAs, GaInSb, and AlGaInSb semiconductors are often used to make infrared LEDs [25]. Infrared LEDs as a light source is used by Scholz et al to monitor the absorption of CO2 at around 4.2 μm [26].…”

Section: Introductionmentioning

confidence: 99%

Broadband 3μm MIR emission from Lead-free perovskite fluorine composite glass and CO2 monitoring in H2 applications

Zhang,

Zhang

et al. 2024

Preprint

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The conventional hydrogen production process is accompanied by the production of large amounts of carbon dioxide, which affects the application of hydrogen energy. Therefore, it is necessary to monitor the carbon dioxide content of hydrogen gas. Due to their excellent optical properties, all-inorganic perovskites can be made into photoluminescence sensors for monitoring gas concentrations. However, toxic lead halide perovskites are limited in photoelectric applications due to their instability and other drawbacks. Perovskites have rarely been studied for broadband luminescence in the mid-infrared range. Herein, this work reports on Dy3+/Er3+ co-doped Cs3Bi2-m-nErmDynBr9-ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF) perovskite fluorine composite glass, which can radiate a broadband mid-infrared luminescence located at 3 µm, covering the characteristic absorption peak of CO2 at 2.7 µm. A CO2 monitoring device is built based on this feature. The use of Bi3+ to replace Pb2+ to form Cs3Bi2Br9 reduces the toxicity of perovskites. The dense and inert nature of the glass is used to isolate the lead-free perovskite Cs3Bi2Br9 from the external environment, thereby improving stability. The addition of Cs3Bi2Br9 not only decreases the phonon density of states in the glass matrix but also changes the local field around the Er and Dy ions. The luminescence of rare earth ions in the mid-infrared is thus enhanced. Cs3Bi2-m-nErmDynBr9-ZBLAN perovskite fluorine composite glass is a promising candidate for future mid-infrared emitting materials due to its non-toxicity and broadband mid-infrared luminescence at 3 µm.

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Section: Introductionmentioning

confidence: 99%

Broadband 3μm MIR emission from Lead-free perovskite fluorine composite glass and CO2 monitoring in H2 applications

Zhang,

Zhang

et al. 2024

Preprint

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“…For example, InAsSb/InAsSbP double‐hetero structure grown by Liquid Phase Epitaxy (LPE) was investigated to show a strong room temperature emission at 4.6 μm, suited for carbon mono‐oxide (CO) detection . Strong carrier confinement of quantum well (QW) structure such as InSb/AlInSb and GaInSb/AlGaInSb was also found to be an attractive material for improved internal quantum efficiency . Furthermore, there is another approach of improving the light extraction efficiency, for example, by introducing the resonant cavity structure …”

Section: Introductionmentioning

confidence: 99%

AlInSb Mid‐Infrared LEDs of High Luminous Efficiency for Gas Sensors

Fujita

Ueno

Morohara

et al. 2018

Physica Status Solidi (a)

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In this paper, performance of mid-infrared light emitting diodes (LEDs) with an InSb buffer layer and AlInSb active/barrier layers, emitting at room temperature is reported. This film structure makes an ideal base material in view of carrier confinement and crystalline quality. In order to achieve a high efficiency for light extraction, backside emission architecture is adopted together with a rough emitting surface and TiO 2 anti-reflection coating. The resulting AlInSb LED shows 75% higher power conversion efficiency than the reference, which has the highest efficiency in the market to date.

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“…Simulation results show that a good control of the optical wavelength and efficient confinement for carrier in the active region is obtained if a MQW active region in the structure design is included [6] The improvement of selectivity inherent to these devices can be made by using quantum well infrared photodetectors having a resonator (R-QWIP). The benefit of resonances is to increase the quantum conversion efficiency [7][8][9]. These detectors will convert the far infrared light signal to be amplified by HBT which derive a visible Light Emitting Diode (LED).…”

Section: Introductionmentioning

confidence: 99%

Analysis of a quantum well structure optical integrated device

Eladl¹

2017

Semicond. Phys. Quantum Electron. Optoelectron.

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Abstract. This paper demonstrates theoretical modeling of a quantum well structure optical integrated device. The constituent devices of the developed structure are a Quantum Well Infrared Photodetector (QWIP) to detect the optical infrared signal, a Heterojunction Phototransistor (HPT) to amplify the signal, and a Light Emitting Diode (LED) to emit this signal in a visible form. The model is based on the transient behavior of the constituent parts of the structure. The dominant pole approximation scheme is used to reduce its transfer function. The convolution theorem is used to get the overall transient response of the device under consideration. All interesting parameters concerning the transient response, rise time, output derivatives are theoretically investigated. The results show that the overall transient behavior, output derivative, and rise time of the considered structure are approximately the same as the constituent device possessing the lowest cutoff frequency. This type of model can be applied with high sensitivity in the up conversion of infrared or far infrared range for image signal processing.Keywords: quantum well infrared photodetector, heterojunction phototransistor, light emitting diode, quantum well structure, optical integrated device.

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Design, Simulations, and Optimizations of Mid-infrared Multiple Quantum Well LEDs

Cited by 8 publications

References 18 publications

Broadband 3μm MIR emission from Lead-free perovskite fluorine composite glass and CO2 monitoring in H2 applications

Broadband 3μm MIR emission from Lead-free perovskite fluorine composite glass and CO2 monitoring in H2 applications

AlInSb Mid‐Infrared LEDs of High Luminous Efficiency for Gas Sensors

Analysis of a quantum well structure optical integrated device

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