yet2.com - technology discovered here
Search Technologies Technology Needs
Browse Technologies
Browse Technology Needs

yet2.com corporate web site
 Tech of the Week
Each week we feature special technologies. Take a moment to view the other Tech of the Week articles, you may find one that meets a present need.
Inkjet and ink technologies with particular application to printers
Inkjet ink technologies for increased brilliancy, excellent latency, and bleed prevention
Inkjet technologies for printing on special surfaces or with special effects
Novel solar collector
Superior inkjet colors
 Info
Tech of the Week is special. Click View Listing Details to see the full information on this technology -- even if you're not already a member.
To take full advantage of yet2.com, Become a Member.
 Archive List
Balance King: Active chairs strengthen the muscles of the back and waist
Novel technology for the exploration and evaluation of groundwater (fresh/thermal) deposits at depths up to 7000 meters with credibility of 95%
Energy-efficient carbon dioxide removal and sequestration
Renewable resource-based ionic liquids
Foamed non-polymeric ionic compounds
More articles...
 
 Tech of the Week

Single-layer electrochromic polymer technology for automotive and architectural glazing light control

DuPont

DuPont has successfully developed a less complex, lower cost electrochromatic (EC) technology for controllable light transmission in automotive and architectural safety glazing applications. It is based on an organic polymer film that can function as a controllable EC interlayer. This technology addresses the need for reducing the complexity of current EC technologies and can be used in rigid and flexible forms, large sizes, and curved shapes. It has applications in dynamic electrochromic glazing systems that undergo a reversible change in color from light to dark by application of a very low voltage. Target markets in automotive include sunroofs, mirrors, instrument clusters, windshield shadebands, sidelights and backlights. For the architectural market opportunities include skylights, office partitions, windows and curtain walls.

electrochromic polymer layerelectrochromic polymer layerelectrochromic polymer layer

How it’s different

Today’s EC device construction is complex, with no cost-effective options. Such construction consists of multiple layers, each of them incorporating a specific functionality: the electrochromophore, the electrolyte and the ion storage layer. In addition, in most of these conventional devices, the electrolyte layer is a liquid or a gel. This can cause problems including solvent evaporation and leakage. The versatility of current EC device systems for use in rigid and flexible forms is also limited.

DuPont EC technology is ideally suited to address current needs along with high potential for further development and versatility in diverse applications. It offers an economical solution that could lead to important cost advantages in comparison to current technologies. The EC device construction is simplified, the number of layers is reduced, and the system does not uses liquid or gel electrolytes. This is an all-solid system with a single interlayer that is electrochromically/electrolytically and ionically functional.

The technology can work either in transmissive or reflective mode. Transmissive EC devices are made with indium tin oxide electrodes that are fully transparent in the visible spectral range. Examples of reflector electrode materials include metallic conductors such as rhodium alloy or chromium. The electrochromic film layer can perform a dual role, such as electrochromophore and an electrolyte. All of the components of the electronic control systems are commercially available. Some development work needs to be done to optimize the power profile of the controllers.

Download this Tech of the Week as a PDF

You can download this Tech of the Week as a PDF file that you can share with co-workers. When viewed on a computer with an Internet connection, the PDF includes live links back to yet2.com and the technology listing.

Delicious logo
Save this TOW to del.icio.us

Want to see more? Tech of the Week is special. Click View Listing Details to see the full information on this technology -- even if you're not already a member.
Want to know more? yet2.com will confidentially pass your question along to the provider of this technology and get back to you with an answer if it is available. This service is free. Ask the owner a question
Like an introduction? Deal directly with the licensing contact for this technology. You´ll need to provide some minimal information. This service is confidential and free of charge unless noted. Request an introduction
Send an email to a friend or colleague that contains a link to this technology. Email this listing to a friend
Boston, MA, USA       Liverpool, United Kingdom       Tokyo, Japan                  
Find a Technology |  List a Technology |  Insight |  Using this Site |  About Us |  Home |  Customer Support |  Help
Privacy Statement   |   Terms of Use Agreement   |   Technology Abstracts
Copyright © 1999-2014 by yet2.com, Inc. All Rights Reserved.
120.05.28.04