Dalton, Larry R. Department of Chemistry, University of Washington, Seattle, Washington.
- A brief history of electro-optic polymers
- Theory-inspired design
- Diels-Alder chemistry for control of material glass transition temperature
- Additional Readings
Optoelectronics encompasses electro-optic, light-emitting device (LED), photovoltaic (PV), and photorefractive (PR) phenomena. These are quite different phenomena. For polymer materials, each of these derives from the presence of conjugated (interacting) pi orbitals. Of the two types of electron orbitals existing in organic materials, pi orbitals concentrate electron density above and below the plane of the nuclei, while sigma orbitals concentrate electron density between nuclei. Thus, pi electrons are less tightly bound by coulombic (charge) interaction with nuclei than are sigma electrons. While LED, PV, and PR phenomena depend on the absorption/emission of light and the generation and migration of charge (electrons and holes), electro-optic activity does not. Also, the applications of each of these phenomena are quite different; that is, photovoltaics are used for renewable energy, light-emitting devices for displays, photorefractives for real-time holography, and electro-optics for telecommunications, computing, and sensing.
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information