Share Email Print
cover

Proceedings Paper

Thermochromic Materials Research For Optical Switching Films
Author(s): G. V. Jorgenson; J. C. Lee
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A dual-ion-beam-sputtering (DIBS) deposition system is used to deposit doped vanadium dioxide (V1-xMx02), where M is a dopant that decreases the transition temperature (Tt) from that of stoichiometric V02. The objective is to synthesize a material that will passively switch between a heat- transmitting-and a heat-reflecting-state at specific design temperatures. The technique is reactive ion beam sputtering of vanadium and a dopant (separate beams) in a well controlled atmosphere of Ar with a partial pressure of O2. The films are deposited at elevated temperature (>700K) onto glass and sapphire substrates for spectrophotometric evaluation above and below Tt. The longer range goals of this research are to develop the material for: (1) thin film application to building glazings and (2) pigments for opaque wall coatings. The glazings will transmit and the walls will absorb solar energy when the V1-xMxO2 temperature (T) is low (T<Tt). At T>Tt, both glazings and walls will reflect the solar infrared.

Paper Details

Date Published: 2 December 1985
PDF: 4 pages
Proc. SPIE 0562, Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IV, (2 December 1985); doi: 10.1117/12.966280
Show Author Affiliations
G. V. Jorgenson, Honeywell Systems and Research Center (United States)
J. C. Lee, Honeywell Systems and Research Center (United States)


Published in SPIE Proceedings Vol. 0562:
Optical Materials Technology for Energy Efficiency and Solar Energy Conversion IV
Carl M. Lampert, Editor(s)

© SPIE. Terms of Use
Back to Top