Hydrogen-Incorporation Stabilization of Metallic VO₂(R) Phase to Room Temperature, Displaying Promising Low-Temperature Thermoelectric Effect

Regulation of electron–electron correlation has been found to be a new effective way to selectively control carrier concentration, which is a crucial step toward improving thermoelectric properties. The pure electronic behavior successfully stabilized the nonambient metallic VO2(R) to room temperature, giving excellent thermoelectric performance among the simple oxides with wider working temperature ranges.