A numerical simulation tool for infrared thermopile detectors

Author

Levin, Alexander

Author_Institution

Dexter Res. Center, MI, USA

fYear

2005

fDate

19-23 June 2005

Firstpage

476

Lastpage

479

Abstract

A model for thermopile detectors is developed using a MatLab based numerical simulation. The model uses geometry and physical parameters of thermopile materials as input data and calculates the main characteristics of the detector. The numerical results closely agree with experimentally determined parameters. The influence of several input parameters on the detector´s performance is studied. Using this approach the output signal of the Dexter Research ST150 detector is improved by 30%. A new model of a CMOS based detector for gas analysis is optimized. The simulation results show significant improvement in the detector´s performance when poly-Si/Al materials are substituted by n-poly-Si/p-poly-Si materials. The model predicts D* = 2.5×10⁸ cmHz¹2//W with a time constant of 17 ms.

Keywords

elemental semiconductors; infrared detectors; photodetectors; semiconductor device models; silicon; thermopiles; 17 ms; Dexter research ST150 detector; MatLab; Si; gas analysis; infrared thermopile detectors; numerical simulation tool; time constant; Biomembranes; CMOS technology; Ferroelectric materials; Geometry; Heat transfer; Infrared detectors; Mathematical model; Numerical simulation; Temperature distribution; Thermal conductivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Thermoelectrics, 2005. ICT 2005. 24th International Conference on

ISSN

1094-2734

Print_ISBN

0-7803-9552-2

Type

conf

DOI

10.1109/ICT.2005.1519986

Filename

1519986