Research of patterned ultraviolet curing ink absorber in uncooled infrared detector

In this study, ultraviolet curing ink is used as absorber of uncooled infrared detector in the near and far wavelength infrared spectrum. The ultraviolet curing ink is patterned by lithography to meet the requirement of industrial production. The absorbance of the radiation wavelength of 320 mm is higher than 80%. Fabricated with the absorber, the infrared sensor shows voltage responsivity of 1186 V W-1 and specific detectivity of 2.6 x 10(8) cm Hz(1/2) W-1 at 5.3 Hz respectively. The detectivity of single crystal LiTaO3 substrate with absorber is around 23.6 times higher than that without it at 138.3 Hz.