The letter discusses the development and characterisation of a GaAs Schottky barrier photodiode based on transparent conducting indium tin oxide (ITO). The use of ITO results in external quantum efficiencies of 60% at 830 nm. The devices have been measured to have a FWHM impulse response of ~20 ps and a ¿3 dBm bandwidth in excess of 20 GHz.
Published in:
Electronics Letters
(Volume:21
,
Issue:
18
)
Date of Publication: August 29 1985