Investigation of electrical properties and thermal stability of ohmic contacts to n-ZnSe for planar contacts on blue-green laser diodes

Karl Schuell; Wolfgang Spahn; V. Hock; U. Lunz; M. Ehinger; Wolfgang Faschinger; Gottfried Landwehr

doi:10.1117/12.238969

1 May 1996 Investigation of electrical properties and thermal stability of ohmic contacts to n-ZnSe for planar contacts on blue-green laser diodes

Karl Schuell, Wolfgang Spahn, V. Hock, U. Lunz, M. Ehinger, Wolfgang Faschinger, Gottfried Landwehr

Author Affiliations +

Proceedings Volume 2693, Physics and Simulation of Optoelectronic Devices IV; (1996) https://doi.org/10.1117/12.238969
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

The formation of contacts by means of indium, aluminum, tin and indium-tin-oxide (ITO) to n-type ZnSe layers grown by MBE has been investigated using x-ray-photoelectron- spectroscopy (XPS) and current-voltage (I-V) techniques. Quite different behavior was found for metal contacts compared to ITO. For the latter it is possible to form ohmic contacts for ZnSe doping levels in the range of n equals 2 multiplied by 10¹⁷ to 3.5 multiplied by 10¹⁸ cm^-3 with specific contact resistances as low as R_c equals 9 multiplied by 10^-3 (Omega) cm². Whereas metal contacts behave according to thermionic emission theory with nonlinear I-V-curves depending on the doping level of ZnSe epilayers.

Citation Download Citation

Karl Schuell, Wolfgang Spahn, V. Hock, U. Lunz, M. Ehinger, Wolfgang Faschinger, and Gottfried Landwehr "Investigation of electrical properties and thermal stability of ohmic contacts to n-ZnSe for planar contacts on blue-green laser diodes", Proc. SPIE 2693, Physics and Simulation of Optoelectronic Devices IV, (1 May 1996); https://doi.org/10.1117/12.238969

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