| Abstract Scope |
This study presents the fabrication and characterization of a flexible RGB photodetector array using zinc oxide (ZnO) layers deposited via printing techniques. Initially, the flexible PET sheet was taken, and after surface hydrophilization, the silver nanowire-based interdigitated electrode was printed. Then, the ZnO layers were subsequently coated with various organic dyes to achieve wavelength-specific sensitivity: SQ2 for red light, Protoporphyrin IX dye for blue light, and Perylenediimide dye for green light. Electrical contacts were made to enable functionality, while an electronic circuit help to validate the operation of the RGB photodetector array. The device demonstrated selective light detection, which was confirmed by shining each primary color incident light on the photodetector array. To enhance the longevity and stability of the photodetectors, encapsulation with polydimethylsiloxane (PDMS) was performed. Our results indicate the potential of this flexible photodetector array for applications in wearable things. |