High Mobility LPE HgCdTe By Post Growth Indium Doping

P. Koppel; K. E. Owens; R. E. Longshore

doi:10.1117/12.960630

12 September 1989 High Mobility LPE HgCdTe By Post Growth Indium Doping

P. Koppel, K. E. Owens, R. E. Longshore

Proceedings Volume 1106, Future Infrared Detector Materials; (1989) https://doi.org/10.1117/12.960630
Event: SPIE 1989 Technical Symposium on Aerospace Sensing, 1989, Orlando, FL, United States

Abstract

N-type, 5LPE2 HgCdTe, with carrier concentrations of 2 x 10 14 cm-3 and mobilites greater than 1 x 10 5 cm /V-s, at 20 K, were produced by a Hg-vapor anneal of the as-grown, p-type starting material, followed by diffusion of an evaporated indium layer. When the Hg-vapor anneal follows the indium diffusion, the material remains p-type, indicating that the two steps are not commutative. Experimental techniques used to explore these differences were Hall effect, capacitance-voltage measurements on MIS structures, photoconductive lifetime, and SIMS. Possible causes of the differences in electrical properties between the two cases are discussed. The low temperature mobilities obtained for the n-type LPE layers compare well with bulk data from other workers. A calculation of the transport properties for the n-type case is also presented to show the effects of compensation.

Citation Download Citation

P. Koppel, K. E. Owens, and R. E. Longshore "High Mobility LPE HgCdTe By Post Growth Indium Doping", Proc. SPIE 1106, Future Infrared Detector Materials, (12 September 1989); https://doi.org/10.1117/12.960630

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