Determination of doping polarity of unintentionally doped antimonide avalanche photodiodes on InP substrate

Mariah Schwartz; Sri Harsha Kodati; SeungHyun Lee; Hyemin Jung; Dekang Chen; Chris Grein; T. J. Ronningen; Joe Campbell; Sanjay Krishna

doi:10.1117/12.2622140

27 May 2022 Determination of doping polarity of unintentionally doped antimonide avalanche photodiodes on InP substrate

Mariah Schwartz, Sri Harsha Kodati, SeungHyun Lee, Hyemin Jung, Dekang Chen, Chris Grein, T. J. Ronningen, Joe Campbell, Sanjay Krishna

Author Affiliations +

Proceedings Volume 12107, Infrared Technology and Applications XLVIII; 121070G (2022) https://doi.org/10.1117/12.2622140
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

Background doping polarity type is a critical parameter for avalanche photodiode performance. We demonstrated a technique using capacitance-voltage (CV) measurements on double mesa structures with a p-i-n or n-i-p homojunctions to determine the polarity type of the unintentionally doped intrinsic (uid) region. CV measurements scale with the size of the mesa and enable design flexibility in producing variable top or bottom mesa diameters. We designed and tested AlGaAsSb and AlInAsSb structures and performed measurements at varying temperatures. Measurements varied with the top mesa, indicating the p-n junction is located between the p-region and the uid region, therefore it is n-type.

Conference Presentation

Citation Download Citation

Mariah Schwartz, Sri Harsha Kodati, SeungHyun Lee, Hyemin Jung, Dekang Chen, Chris Grein, T. J. Ronningen, Joe Campbell, and Sanjay Krishna "Determination of doping polarity of unintentionally doped antimonide avalanche photodiodes on InP substrate", Proc. SPIE 12107, Infrared Technology and Applications XLVIII, 121070G (27 May 2022); https://doi.org/10.1117/12.2622140

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