Microwave Rectification by a Carbon Nanotube Schottky Diode
arXiv:0805.1899 · doi:10.1063/1.2939095
Abstract
Carbon nanotube Schottky diodes have been fabricated in an all-photolithographic process using dissimilar contact metals on high-frequency compatible substrates (quartz and sapphire). Diodes show near-ideal behavior, and rectify currents of up to 100 nA and at frequencies up to 18 GHz. The voltage and frequency dependence is used to estimate the junction capacitance of ~10-18 F and the intrinsic device cut-off frequency of ~400 GHz.
To appear in Applied Physics Letters