Voltage-current characteristics of vanadium dioxide based ceramics

Conductivity stabilization by metal and oxide additives in ceramics on the basis of VO2 and glass V2O5–P2O5

“…On the basis of VO 2 and vanadium phosphate glass (VPG) the glass-ceramics was created [5]. Such ceramics has the change of electrical resistance up to 2-3 orders of magnitude in the vicinity of the temperature T t and has shown the phenomenon of threshold switching [6]. Therefore VO 2 -based glass-ceramics can find application in thermistors, electric current inrush limiters and switching devices.…”

“…Though VO 2 -based glass-ceramics is instable at temperature cycling, such material is interesting for practical use, because it can work under the heavy current [6]. As shown in [11], the copper additive increases the conductivity stability of VO 2 -based ceramics.…”

Modification of the Properties of Vanadium Oxide Thin Films by Plasma-Immersion Ion Implantation

“…The switching effect has been observed in vanadium dioxide single crystals and thin-film structures of both planar and sandwich-type [1,5,7], as well as in vanadate-phosphate glasses [26], VO 2 -containing ceramics [27], and V 2 O 5 -gel films [8,28]. When as-prepared samples do not consist of pure vanadium dioxide, preliminary electrical forming (EF) is required, resulting in formation of the VO 2 -containing channel [7,8,[26][27][28].…”

Phase composition, microstructure and conductivity of (85-α)VO2–15(Vanadium–Phosphate–Glass)–αCu glass–ceramics

“…Ceramic materials based on vanadium dioxide VO 2 and V 2 O 5 -P 2 O 5 vanadium-phosphate glass (VPG) exhibit an abrupt change in electric conductivity at a phase transition associated with VO 2 [1] and show a threshold switching in the current-voltage characteristic [2].…”