Thursday, July 26, 2012

US Patent 8227957 - Piezoelectric nanowire electrical energy generator

This patent from Samsung teaches the use of piezoelectric nanowires in an auxiliary power source for mobile devices which can convert light or mechanical energy into electrical energy. Claim 1 reads:

1. An apparatus for generating electrical energy, comprising:

a first electrode;

a second electrode spaced apart from the first electrode;

a nanowire which includes a piezoelectric material and is disposed on the first electrode;

an active layer disposed on the first electrode;

a conductive layer disposed on the active layer; and

an insulating film disposed between the conductive layer and the nanowire, wherein the nanowire and the active layer are electrically connected to each other.