Bulletin of the American Physical Society
APS March Meeting 2023
Volume 68, Number 3
Las Vegas, Nevada (March 5-10)
Virtual (March 20-22); Time Zone: Pacific Time
Session AA01: V: Dopants and Defects in Semiconductors
5:00 AM–6:48 AM,
Monday, March 20, 2023
Room: Virtual Room 1
Sponsoring
Unit:
DMP
Chair: Chirag Gupta, University of Wisconsin - Madison
Abstract: AA01.00003 : Modulation of the charge state of Si-vacancy defects in diamond and their photoluminescence using high voltage nanosecond pulses
5:48 AM–6:00 AM
Presenter:
Stephen B Cronin
(USC)
Author:
Stephen B Cronin
(USC)
high voltage pulses, we observe no emission at 738 nm. This feature increases monotonically with peak pulse voltage, pulse repetition rate (i.e., frequency), and incident laser intensity. We observe saturation of the PL intensity for pulse voltages above 3.2 kV and frequency above 100 Hz. Based on electrostatic simulations, we estimated the local electric field intensity near the tip of the Cu electrode to be 2.8 106 V/cm at these voltages. However, as a function of laser power, we observe a linear dependence of PL intensity without saturation. These saturating and non-saturating behaviors provide important insight into the voltage-induced charging mechanisms and kinetics associated with this process
Weng, et al., Applied Physics Letters, 119, 171101 (2021). https://doi.org/10.1063/5.0066537
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