Effect of Cu2O nano-particles on the temperature sensing and optical switching of poly-(dioctyl-flourene)

This paper reports the effect of Cu2O nanoparticles on the temperature sensing properties and optical switching of Poly-(Dioctylfluorene). A surface type capacitive temperature sensor and optical switch has been fabricated by depositing 720 nm thin layer of F8:Cu2O on pre-patterned silver (Ag) electrodes, using optical lithography and shadow masking followed by vacuum thermal deposition. The effect of temperature on the electrical resistance for sensor and as optical switch by exposing light has been investigated. The sensor responded exponentially with increasing temperature, also exposing to light it work as an optical switch. The on off of this optical switch is will explained by graph. Scanning Electron Microscopy has been employed to study the morphology of F8:Cu2O thin film. These results demonstrated that the temperature sensor and optical switch made of F8:Cu2O have excellent accuracy and performance.