کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
514383 866733 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Design of mid-infrared InAs/GaSb superlattice detectors for room temperature operation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Design of mid-infrared InAs/GaSb superlattice detectors for room temperature operation
چکیده انگلیسی

This paper presents the simulation of mid-infrared InAs/GaSb superlattice (SL) detectors by using a finite element FEMLAB code, which is a practical and useful tool to characterize and to define microelectronic devices with appropriate geometry. In the framework of this FEMLAB code, the electro-optic performances of the SL photodetectors for room temperature (RT) operation are theoretical evaluated in terms of zero-bias resistance-area product R0AR0A and of external quantum efficiency ηη in order to estimate the specific detectivity D*D*. In the case of realistic SL active zone, calculated results show an optimal active zone thickness of about 1.3μm and a RT specific detectivity Dλ*=2×109cmW-1Hz1/2 at λ=4μm. This expected value demonstrates that InAs/GaSb SL detector is a competitive technology suitable for third generation detectors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Finite Elements in Analysis and Design - Volume 44, Issues 9–10, June 2008, Pages 611–616
نویسندگان
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