The contradiction between thermodynamic and kinetic effects of stress-modulated antiferroelectricity in ZrO thin films.

The discovery of antiferroelectricity in fluorite-structured binary oxides has opened up promising directions for next-generation electronic devices due to their excellent scalability and compatibility with silicon technology. However, understanding and improving the antiferroelectricity remain ambiguous and present considerable challenges for device applications. In this work, we discover a contradiction between the thermodynamic and kinetic effects of stress-modulated antiferroelectricity in ZrO thin films.

₂.

The homemade explosive, triacetone triperoxide (TATP), is easy to synthesize, sensitive to detonation but hard to detect directly. Vapor sensor arrays composed of a few sensor materials have the potential to discriminate TATP, but the stability of the sensor array is always a tricky problem since each sensor may encounter a device fault. Thus, a sensor array based on a single optoelectronic TiO₂/PW sensor was first constructed by regulating the excitation wavelength to discriminate TATP from other explosives.