Emerging NO gas sensing on substitutionally doped Fe on NiWO SCES insulators.

In this study, we demonstrate the emergence of NO gas sensing capabilities in the typically non-active NiWO, a strongly correlated electron system (SCES), by introducing substitutional Fe at the Ni site. NiWO typically exhibits strong Coulombic repulsion between Ni atoms, resulting in a large band gap of over 3.0 eV and insulating behavior.

3D Multiple Triangular Prisms for Highly Sensitive Non-Contact Mode Triboelectric Bending Sensors.

Here, a highly sensitive triboelectric bending sensor in non-contact mode operation, less sensitive to strain, is demonstrated by designing multiple triangular prisms at both sides of the polydimethylsiloxane film. The sensor can detect bending in a strained condition (up to 20%) as well as bending direction with quite high linear sensitivity (~0.12/degree) up to 120°, due to the electrostatic induction effect between Al and poly (glycerol sebacate) methacrylate.