Impact of channel scaling on performance of single SiC nanowire UV photodetector

Ali Uzun; Kasif Teker

doi:10.1117/1.JNP.13.026003

23 April 2019 Impact of channel scaling on performance of single SiC nanowire UV photodetector

Ali Uzun, Kasif Teker

Author Affiliations +

Journal of Nanophotonics, Vol. 13, Issue 2, 026003 (April 2019). https://doi.org/10.1117/1.JNP.13.026003

Abstract

We have investigated the channel length dependence of the key performance parameters, such as speed, responsivity, external quantum efficiency (EQE), and responsivity–bandwidth product, of the silicon carbide nanowire-based ultraviolet (UV) photodetector devices with different channel lengths ranging from 120 to 800 nm. The device with the shortest channel length of 120 nm at low bias voltage of 0.5 V exhibited very high responsivity and EQE of 7.73 × 10³ A / W and 7.77 × 10⁴ % , respectively, under illumination to 254-nm UV light. Our experiments revealed that reduction in channel length resulted in significant enhancement in speed, responsivity, EQE, and responsivity–bandwidth product of the photodetector. This study suggests that scaling down in channel length could enable the development of high-speed and sensitive photodetector devices for emerging nanophotonic and nanoelectronic applications capable of operating at low voltages.

Citation Download Citation

Ali Uzun and Kasif Teker "Impact of channel scaling on performance of single SiC nanowire UV photodetector," Journal of Nanophotonics 13(2), 026003 (23 April 2019). https://doi.org/10.1117/1.JNP.13.026003

Received: 21 January 2019; Accepted: 8 April 2019; Published: 23 April 2019

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