| 초록 |
Electronics that disintegrate after stable operation for a desired amount of time are of great interest for secure memory devices, biomedical implants and environmental sensors. We report thermal-triggered transient electronics based on protective wax coatings and microcapsules that contain encapsulated acid microdroplets. Upon exposure to sufficient heat, the melting of the wax releases the encapsulated acid which then enables rapid device destruction via acidic degradation of electronic components. In addition, using a cyclic poly(phthalaldehyde) (cPPA) substrate, acid sensitive low Tc polymer, affords a more rapid destruction of the device due to acidic depolymerization of cPPA. An autonomic and self-destructive device was demonstrated, where heat triggering is remotely controlled by inductive coupling, and wirelessly powered heater successfully initiated device destruction. |
