RT info:eu-repo/semantics/bachelorThesis
T1 Preliminary investigations on Thermal Electric Devices
A1 Méndez Puertas, Jesús Antonio
A2 Universidad de Valladolid. Escuela Técnica Superior de Ingenieros de Telecomunicación
K1 [pendiente de asignar]
AB A study of the possibilities and developments of the electronic thermal devicesis presented. Mainly, it is focused on the review of the principles and previousinvestigations on the thermal integrated switches based on the novel vanadium dioxidematerial, that presents a semiconductor to metal state phase transition around 68ºC.In order to prove the viability of the thermal integrated logic circuits, basicallyconsisting on thermal logic gates made of phonsistors, it has been experimentallytested, using a heating plate and a source meter, a single SMT (Semiconductor toMetal Transition) switch and a thermal logic gate structure, based on a platinumcontacts geometry deposited on a VO2 thin film over a silicon substrate.The experiments revealed the correct operation of the VO2 switch, proving theprevious studied theories, as the resistance change and the reason that produce thetransition activation. Also, the NOR logic function was proved on the thermal logicstructure, using current driven inputs and a pull-up resistor in the output. The resultsacquired present the possibility of creating thermal logic gates and electronic circuitsbased on the phonsistor scheme. Further investigations building nanoscale structures,which would improve the performance, could be done to test the minimum switchingtimes and the power consumption that would have the thermal logic technology.
YR 2015
FD 2015
LK http://uvadoc.uva.es/handle/10324/15104
UL http://uvadoc.uva.es/handle/10324/15104
LA eng
DS UVaDOC
RD 14-mar-2025