A hybrid organic semiconductor/silicon photodiode for efficient ultraviolet photodetection.
A method employing conjugated polymer thin film blends is shown to provide a simple and convenient way of greatly enhancing the ultraviolet response of silicon photodetectors. Hybrid organic semiconductor/silicon photodetectors are demonstrated using fluorene copolymers and give a quantum efficiency of 60% at 200 nm. The quantum efficiency is greater than 34% over the entire 200-620 nm range. These devices show promise for use in high sensitivity, low cost UV-visible photodetection and imaging applications.
Levell
J W
JW
Organic Semiconductor Centre, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife, United Kingdom.
Giardini
M E
ME
Samuel
I D W
ID
D004867:Equipment Design; D019544:Equipment Failure Analysis; D009930:Organic Chemicals / Q000528:radiation effects*; D010783:Photometry / Q000295:instrumentation*; D012666:Semiconductors; D012825:Silicon / Q000737:chemistry*; D014466:Ultraviolet Rays
D009930:Organic Chemicals; D012825:Silicon