blocked impurity band detector
Also found in: Acronyms.
blocked impurity band detector
[′bläkt im′pyu̇r·əd·ē ¦band di‚tek·tər] (electronics)
A detector of long-wavelength infrared radiation consisting of a heavily doped extrinsic photoconductor on which an undoped intrinsic layer is grown epitaxially to prevent dark current from flowing in the impurity band.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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