nBn and pBp infrared detectors with graded barrier layer, graded absorption layer, or chirped strained layer super lattice absorption layer

作者: Sarath D. Gunapala , David Z. Ting , Sumith V. Bandara , Cory J. Hill

DOI:

关键词: DetectorOpticsOptoelectronicsMaterials scienceBarrier layerLattice (order)InfraredAbsorption layerConcentration gradientValence (chemistry)Valence band

摘要: An nBn detector is described where for some embodiments the barrier layer has a concentration gradient, absorption and chirped strained super lattice. The use of graded or layer, lattice allows design energy bands so that valence band may be aligned across device. Other are claimed.

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