Infrared thermography enabled morphology detection approach for additive manufactured flexible electrodes

Additive manufactured flexible electrodes show prospect applications in flexible electronics. However, morphological defects may affect a flexible electronic device's sensitivity, response value, reliability, etc. Therefore, accurate and efficient defect detection is still challenging, especially for mass-manufactured flexible electrodes. This paper proposed and tested a rapid morphological defects detection approach with infrared thermography technology. This approach shows advantages of high detect resolution (minimum test defect: 183.38um), good linearity (R² = 0.9887), efficiency, and nondestructive and large-scale applications, thereby achieving quality control and process evaluation in the mass additive manufacturing of flexible electrodes. Furthermore, resulting in improves the reliability and consistency of flexible electronic devices.