Patent ID: 7818993

Claim:
Flexible hydrogen sensors, comprising: high temperature chemical vapor deposition (CVD) single-walled carbon nanotubes (SWNTs) with clean surfaces; flexible plastic substrates for supporting said SWNTs; palladium (Pd) nanoparticles on said SWNTs, said Pd nanoparticles being spaced from each other to form individual discontinuous Pd nanoparticles rather a continuous Pd film; two metal electrodes of gold, said gold electrodes being positioned on SWNTs and said gold electrodes being spaced and separated from each other; said gold electrodes arc covered and coated with - insulating silicon dioxide SIO 2 film; no Pd nanoparticles are deposited on said gold electrodes because said gold electrodes are covered with said SiO 2 film: said SWNTs and said Pd nanoparticles having variable resistance for conversion and amplification into electrical signals; said SWNTs and Pd nanoparticles cooperating with each other to provide high-performance flexible hydrogen sensors for sensing hydrogen; and said high-performance flexible hydrogen sensors being bendable for conforming and complementing contours of other structures while substantially maintaining performance.