Energy structure and micromechanism of photo-EMF effect in adaptive IR-detectors based on CdTe:V crystals

Yu. P. Gnatenko; M. S. Brodyn; I. O. Faryna; P. M. Bukivskij; O. A. Shigiltchoff; M. S. Furyer; R. V. Gamernyk; N. Kukhtarev; T. Kukhtareva

doi:10.1117/12.678751

11 September 2006 Energy structure and micromechanism of photo-EMF effect in adaptive IR-detectors based on CdTe:V crystals

Yu. P. Gnatenko, M. S. Brodyn, I. O. Faryna, P. M. Bukivskij, O. A. Shigiltchoff, M. S. Furyer, R. V. Gamernyk, N. Kukhtarev, T. Kukhtareva

Author Affiliations +

Proceedings Volume 6294, Infrared and Photoelectronic Imagers and Detector Devices II; 62940U (2006) https://doi.org/10.1117/12.678751
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

For the first time the photo-EMF measurements were carried out for CdTe crystals doped with V atoms as a result of the photogeneration of carriers from deep impurity centers to the conduction band and the tilted geometry was applied that allowed two-mentional monitoring of the vibration source. The CdTe:V crystals were excited by a He-Ne laser with λ=1.15 μm (&barh;ω=1.08 eV) and P=2 mW. The mechanism of appearance of the holographic current in the CdTe:V crystals (adaptive IR-photodetectors) taking into account of real defect structure was proposed. The frequency dependence of ac photo-EMF (holographic) current for the CdTe:V crystal was measured. It was shown that a low cutoff frequency for the laser intensity I=0.2 mW/mm² equals 6.0 kHz that corresponds to the response time of 26 μsec.

Citation Download Citation

Yu. P. Gnatenko, M. S. Brodyn, I. O. Faryna, P. M. Bukivskij, O. A. Shigiltchoff, M. S. Furyer, R. V. Gamernyk, N. Kukhtarev, and T. Kukhtareva "Energy structure and micromechanism of photo-EMF effect in adaptive IR-detectors based on CdTe:V crystals", Proc. SPIE 6294, Infrared and Photoelectronic Imagers and Detector Devices II, 62940U (11 September 2006); https://doi.org/10.1117/12.678751

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available