An idea for development of intelligent materials and devices

Based on the variation of spontaneous polarization P-s of ferroelectrics under applied electric field, temperature and stress, a concept of composite functional effect that different kinds of materials with different functional effects can be composed together to find a new material by multilayer and thin film integrated technologies was proposed to design new intelligent materials and devices. The principle demonstration and experimental results of a pyroelectric voltage transformer showed that this assumption is reasonable and feasible.