Nondestructive characterization of thermochromic materials for tunable thermal devices

Li Voti1, G. Leahu1, M.C.Larciprete, M. Centini, G. Cesarini, Fratoddi² , C.Sibilia1, M.Bertolotti1

  1. Dipartimento di Scienze di Base ed Applicate per l’Ingegneria, Sapienza Università di Roma, Via A. Scarpa 16 00161 Roma, Italy
  2. Dipartimento di Chimica, Sapienza Università di Roma, Piazzale A.Moro, Roma, Italy

The optical and infrared properties in thermochromic materials have been investigated in the last years due to the large variety of photonic devices realised thanks to the metal-insulator phase transition: “smart” windows, tunable thermal devices, thermally controllable localized-plasmon, hysteresis enhancement, optical memory, ultrafast switching in photonic crystals. In this paper we show the performances of several multilayer structures based on vanadium dioxide which can be used as tunable thermal devices. We measured their infrared properties during the semiconductor-to-metal phase transition, and determine the effective thermal parameters and the induced emissivity changes by photothermal radiometry

 <-  TECHNICAL SESSION (TS) VI.3

<- Torna a Programma

<- Back to Masterplan