Premium
Numerical device simulation to investigate the noise currents of mercury cadmium telluride photosensors for thermal imaging applications
Author(s) -
Kocer H.
Publication year - 2013
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.1894
Subject(s) - mercury cadmium telluride , photodetector , infrared , noise (video) , mercury (programming language) , optoelectronics , thermal , materials science , quantum tunnelling , cadmium telluride photovoltaics , physics , optics , computer science , artificial intelligence , meteorology , image (mathematics) , programming language
SUMMARY Infrared (IR) sensors are widely used in thermal imaging and sensor applications. The performance of IR sensor is strongly dependent on the noise currents of the sensor. If characteristics of the noise currents are known prior to the costly and time‐consuming sensor production phase, high performance IR sensors could be obtained rapidly and cost effectively. In this study, a p–n long‐wave IR mercury cadmium telluride sensor is evaluated at 77 K using a physics‐based numerical modeling and simulation approach. Results of the study showed that 1/ f noise originating from the trap‐assisted tunneling dominates as the cut‐off wavelength and the magnitude of the applied reverse bias voltage increase. Copyright © 2013 John Wiley & Sons, Ltd.