Browsing by Author "Wei, Cheng-Yang"

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Nanogap formation by palladium hydrogenation for surface conduction electron emitters fabrication
(2007-04-16)
Tsai, Chih-Hao
;
Pan, Fu-Ming
;
Chen, Kuan-Jung
;
Wei, Cheng-Yang
;
Liu, Mei
Nanometer-scale gaps in Pd strips are obtained by hydrogen absorption under high pressure treatment. The resulting lattice constant increase due to the Pd phase transformation after hydrogen uptake results in a large compressive stress on the thin Pd films. Under proper geometric arrangement of the Pd electrode within a surface conduction electron (SCE) emitter structure, a single nanogap per SCE device is obtained. A turn-on voltage of 41 V is observed for emitters with a 25 nm gap. (c) 2007 American Institute of Physics.