Silver oxide and dye are used in a sandwich construction with an active area of 1.5× 1.5 cm2 to absorb and convert incident photons to electric energy, improving the photodetector's performance as a light sensor. To extract natural dye from Anemone coronaria, a variable variation of solution concentration based on the density ratio was used. The absorbance of Anemone coronaria was measured to use a spectrophotometer at a wavelength of 200‐1000 nm. This indicates that UV absorption has occurred and notice when the spectral response raises at a concentration of 0.02 M, there is improvement in the infrared region with a wave length of 950 nm. The improved sensitivity in the long wavelength region could be attributed to the formation of dye aggregates within the devices.