Hybrid nanomaterial electrode and fabrication method thereof
AssigneeNational Tsing Hua University
InventorsCHIEN-CHONG HONG, ZI-XIANG LIN, KUO-CHU HWANG
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Abstract
The present invention provides a hybrid nanomaterial electrode, comprising a pair of spaced-apart electrodes, at least three pairs of metallic nanowires disposed between the electrodes and respectively connected with the electrodes, and at least a detecting material connecting with the metallic nanowires. The detecting material is formed as a semiconductor nanostructure or a conductor nanostructure. The hybrid nanomaterial electrode of the present invention can be used in a gas detector for detecting volatile organic compounds, and has the advantage of providing high sensitivity, low detection limit, and the ability to operate at room temperature.
Claims10
A hybrid nanomaterial electrode comprising:
- two electrodes spaced apart from each other by a gap;
- at least three pairs of metallic nanowires crossing the gap and respectively connected with the two electrodes;
- and
- at least a detecting material connecting with the metallic nanowires, the detecting material being formed as a semiconductor nanostructure or a conductive nanostructure;
- wherein the hybrid nanomaterial electrode includes a single beaded electrically conductive channel of a curved shape formed by an electrical sintering process associating a pulse electric field with an organic solvent.
A method of fabricating a hybrid nanomaterial electrode, comprising:
- a. forming at least three metallic nanowires between two electrodes by dielectrophoresis;
- b. breaking the metallic nanowires to form a gap therein;
- c. forming a detecting material in the gap by dielectrophoresis to connect the broken metallic nanowires, wherein the detecting material is formed as a semiconductor nanostructure or a conductive nanostructure;
- and
- d. forming a single electrically conductive channel in a polar organic solvent by applying an electrical sintering process associating a pulse electric field with the polar organic solvent, wherein the pulse electric field is applied as an external voltage abruptly rise to 20 Vp-p.
Dependencies are inferred from the claim text.