Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
A. D. D. DWIVEDI1, P. CHAKRABARTI1,*
In this paper we report an analytical modeling of N+-Hg0.69 Cd0.31Te /n0 Hg0.78 Cd0.22Te /p+-Hg0.78 Cd0.22Te p-i-n photodetector for long wavelength free space optical communication. The results obtained on the basis of our model have been compared and contrasted with the simulated results using ATLASTM. The photodetector has been studied in respect of energy band diagram, electric field profile, doping profile, dark current, resistance area-product, quantum efficiency, spectral response, responsivity and detectivity by analytical method using closed form equations and also been simulated by using device simulation software ATLASTM from SILVACO® international. The photodetector exhibits a high value of quantum efficiency ~80 %, responsivity ~7 A/W, specific detectivity ~3.44×1011 mHz1/2W-1at wavelength10.6μm, dark current of the order of 10-11 A. The estimated noise equivalent power (NEP) is the order of 3×10-18 W..
ATLAS simulation, p-i-n photodetector, Optical communication, Hg-Cd-Te.
A. D. D. DWIVEDI, P. CHAKRABARTI, Analytical modeling and ATLAS simulation of N+-Hg0.69 Cd0.31Te /n0- Hg0.78 Cd0.22Te/p+Hg0.78 Cd0.22Te p-i-n photodetector for long wavelength free space optical communication, Optoelectronics and Advanced Materials - Rapid Communications, 4, 4, April 2010, pp.480-497 (2010).
Submitted at: Sept. 21, 2009
Accepted at: April 11, 2010
Optoelectronics and Advanced Materials - Rapid Communications
(2025): Impact Factor = 0.5 - Journal Citation Reports (Clarivate Analytics, 2026)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.