Flexible Graphene/PEDOT: PSS Free-standing Infrared Photodetector

The combination of polymers and nanomaterials has improved the diversity and compatibility of signal detection. The main challenge that researches face is related to the stability, the response rate, and the final signal detection of the fabricated detectors. Graphene as a traditional two-dimensional material has been applied to improve the internal carriers transport and enhance the final detected signal. By mixing the graphene material with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT: PSS) polymer and forming the corresponding composites, synergistic effects have been demonstrated based on the final experiment results. To move further, one free-standing infrared detection (IR) detector has been fabricated with no substrate supported. The results for the infrared wave radiation have been collected and compared with different graphene loadings. Overall, these discoveries offer valuable understanding for promoting graphene-related composites in the field of infrared detection.