Application of a rapid graphical method for the design of electrochromic devices
Conference
·
OSTI ID:197614
- National Renewable Energy Lab., Golden, CO (United States)
Recently, Rauh and Cogan presented a model for the thermodynamic equilibrium optical and electrical properties of electrochromic optical modulation devices. Such as empirically based, predictive model is very useful in the engineering design of practical electrochromic devices. The existing model, however, requires considerable computation to model the effects of changes in important device parameters such as layer thicknesses and total mobile ion charge. The authors present a simple, graphical technique for evaluating the equilibrium electrochemical interaction of two electrochromic layers at any applied voltage based on independent, empirical, back-EMF measurements of the materials. The technique allows extremely rapid evaluation of different candidate materials, layer thicknesses and total ion charges. They present the results of the model for a Li-based electrochromic devices employing WO and VO layers with an emphasis on design for low coloration voltage.
- DOE Contract Number:
- AC36-83CH10093
- OSTI ID:
- 197614
- Report Number(s):
- CONF-950793--; ISBN 0-8194-1890-0
- Country of Publication:
- United States
- Language:
- English
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