Nondestructive evaluation of junction effects in GaAs avalanche photoconductors

Michael H. Herman; Kenneth M. Positeri; S. M. Ahern; Robert A. Lewis

doi:10.1117/12.59069

12 May 1992 Nondestructive evaluation of junction effects in GaAs avalanche photoconductors

Michael H. Herman, Kenneth M. Positeri, S. M. Ahern, Robert A. Lewis

Proceedings Volume 1632, Optically Activated Switching II; (1992) https://doi.org/10.1117/12.59069
Event: OE/LASE '92, 1992, Los Angeles, CA, United States

Abstract

We have studied the current-voltage-temperature response of off-state NIN GaAs Avalanche Photoconductors. These non-destructive tests, evaluated in terms of thermal activation energies (E_a), and Resistance-Voltage (R-V) characteristics, are found to effectively distinguish between two types of devices. The first type possesses E_a < E_gap/2 and resistivity commensurate with bulk SI GaAs; the second demonstrates E_a > E_gap/s and R values greatly surpassing those of bulk Semi-Insulating GaAs. These data are consistent with junction effects at both contact-bulk interfaces, arising from the formation of an uncompensated P-type region near the N⁺ contact layer. We explain the P-type behavior by trapped electron neutralization of the deep compensating donor EL2.

Citation Download Citation

Michael H. Herman, Kenneth M. Positeri, S. M. Ahern, and Robert A. Lewis "Nondestructive evaluation of junction effects in GaAs avalanche photoconductors", Proc. SPIE 1632, Optically Activated Switching II, (12 May 1992); https://doi.org/10.1117/12.59069

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