Toward both p- and n-doping of hexagonal boron nitride using sub-bandgap illumination

A. Perepeliuc; R. Gujrati; A. Srivastava; P. Vuong; V. Ottapilakkal; P. L. Voss; S. Sundaram; J. P. Salvestrini; A. Ougazzaden

doi:10.1117/12.2662309

16 March 2023 Toward both p- and n-doping of hexagonal boron nitride using sub-bandgap illumination

A. Perepeliuc, R. Gujrati, A. Srivastava, P. Vuong, V. Ottapilakkal, P. L. Voss, S. Sundaram, J. P. Salvestrini, A. Ougazzaden

Author Affiliations +

Proceedings Volume 12422, Oxide-based Materials and Devices XIV; 124220H (2023) https://doi.org/10.1117/12.2662309
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Giant room temperature persistent photoconductivity in hexagonal boron nitride under UVC irradiation has been demonstrated. Scanning lasers dots on sample surface at two different wavelengths (213 and 266 nm) have been used to induce such effect, the former being more efficient. Conductivity has been increased by 6 orders of magnitude upon illumination. Such increase persists significantly for at least 6 months. Decrease of photoinduced current has been shown to be 10% more important for samples irradiated under vacuum than for those irradiated under atmospheric pressure. Type of photoinduced carriers were investigated using p-hBN/n-AlGaN junctions through C/V measurements. P-type carriers are believed to be generated by 213 nm illumination whereas 266 nm laser is supposed to trigger n-type carriers.

Conference Presentation

Citation Download Citation

A. Perepeliuc, R. Gujrati, A. Srivastava, P. Vuong, V. Ottapilakkal, P. L. Voss, S. Sundaram, J. P. Salvestrini, and A. Ougazzaden "Toward both p- and n-doping of hexagonal boron nitride using sub-bandgap illumination", Proc. SPIE 12422, Oxide-based Materials and Devices XIV, 124220H (16 March 2023); https://doi.org/10.1117/12.2662309

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