Patent ID: 8507865
Filing Date: 2013-08-13
Classification: B82Y,H01L,Y02E

Abstract:
1. An infrared photo detector to detect infrared radiation on an organic basis, comprising: a first electrode; a second electrode; and an organically based photo active layer arranged between the first and second electrodes, the organically based photo active layer containing semi-conducting infrared-absorbing nanoparticles, the infrared-absorbing nanoparticles containing lead sulfide (PbS) and being at least partially in the form of nanocrystals, whereby the organically based photo active layer is constructed as a three component bulk hetero junction of lead sulfide:poly(3-hexylthiophene-2,5-diyl):phenyl-C the infrared-absorbing nanoparticles have a diameter selected to match the infrared radiation to be absorbed.