Modelling of electronic transport in Quantum Well Infrared Photodetectors

Trinité, Virginie; Ouerghemmi, Ezzeddine; Guériaux, Vincent; Carras, Mathieu; Nedelcu, Alexandru; Costard, E.; Nagle, J.

doi:10.1016/j.infrared.2010.12.014

Cited by 30 publications

(16 citation statements)

References 16 publications

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“…The calculations are based on a photoemissive model. 10 As expected, the spectral responsivity is quasiindependent of the bias voltage and temperature.…”

Section: Optical Engineeringsupporting

confidence: 72%

Quantum well infrared photodetectors: present and future

et al. 2011

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A review of the III-V Lab activities in the field of quantum well infrared photodetectors (QWIPs) is presented. We discuss the specific advantages of this type of detector and present the production facilities and status. A large section is dedicated to broadband QWIPs for space applications and to QWIPs on InP for mid-wavelength infrared detection. We review the progress of QWIP technology for the next generation (dual band, polarimetric, and multispectral) of thermal imagers. Finally, the state-of-the-art of very long wavelength QWIPs is discussed. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). IntroductionAt the III-V Lab, research on quantum well infrared photodetectors (QWIPs) has always been driven by the needs and constraints set by the operational systems. Reliable infrared (IR) cameras for Thales applications need high temperature operation (T FPA > 73 K), low integration time (T INT < 5 ms) to achieve high imaging rates and true microscanning, high instantaneous dynamic range ( + 50 • C) to accurately image objects much hotter than the background. They also need small pitch focal plane arrays (FPAs) (<25 μm) in order to get compact and low cost systems.In this context, parameters such as specific detectivity (D*) or ultimate background limited performance are no more relevant. Moreover, FPA uniformity, stability, peak wavelength reproducibility, and process mastering play an important role. These are reasons why at the III-V Lab, research relies on production facilities.QWIPs have been widely investigated for detection in the mid-wavelength (MW, 3 to 5 μm), long wavelength (LW,8 to

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“…The calculations are based on a photoemissive model. 10 As expected, the spectral responsivity is quasiindependent of the bias voltage and temperature.…”

Section: Optical Engineeringsupporting

confidence: 72%

Quantum well infrared photodetectors: present and future

et al. 2011

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“…Fig. 5 shows the calculated dark current profile at various temperature for the structure reported by Trinité et al [31]. The dotted lines indicate the experimental data found for the same structure.…”

Section: Comparison Between Calculation and Experimental Resultsmentioning

confidence: 71%

“…Comparison between the simulated result (solid lines) done in present work and experimental data (dotted lines) reported by Trinité et al[31] of dark current at various temperature. The figure shows good agreement between calculation and experiment, especially at temperature below 100 K. At elevated temperature, thermal agitation of the carrier and their emission over the barrier begin to dominate, hence the model underestimates the dark current, as the model incorporates only elastic injection of carriers.…”

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confidence: 51%

Spectral broadening and electron–photon coupling in III–V infrared detectors of low dimensional quantum confined system

Joy

Mohammedy

2016

Infrared Physics & Technology

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“…Ao longo dos anos, foram realizadas diversas tentativas para modelar a corrente de escuro [8,9,10,11,12], entretanto, todos os modelos apresentados possuem limites de aplicação relacionados à intensidade do campo elétrico ou à temperatura de operação. Além disso, quase todos os modelos consideram apenas dos elétrons termoexcitados pois, para as temperaturas típicas de trabalho (T > 50K) este é o mecanismo dominante de corrente de escuro, a corrente associada é várias ordens de grandeza maior que a corrente de tunelamento entre poços quânticos.…”

Section: O D E L a G E M D A C O R R E N T E D E E S C U R O E M Q unclassified

“…Os modelos mais comuns calculam a corrente devido ao tunelamento entre os poços, usando o conceito de minibanda [14] ou de estados localizados (Wannier-Stark) [15,12]. Devido à maior simplicidade do modelo de minibandas, este modelo foi utilizado neste trabalho de mestrado para auxiliar na interpretação dos dados experimentais.…”

Section: O D E L a G E M D A C O R R E N T E D E E S C U R O E M Q unclassified

Determinação da corrente de escuro em fotodetectores de radiação infravermelha baseados em poços quânticos (QWIPs)

Claro¹

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Modelling of electronic transport in Quantum Well Infrared Photodetectors

Cited by 30 publications

References 16 publications

Quantum well infrared photodetectors: present and future

Quantum well infrared photodetectors: present and future

Spectral broadening and electron–photon coupling in III–V infrared detectors of low dimensional quantum confined system

Determinação da corrente de escuro em fotodetectores de radiação infravermelha baseados em poços quânticos (QWIPs)

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