Unformatted text preview: doping concentrations up to 15%. Also new devices that use new host material such as indium-free transparent conducting oxides have been reported to increase efficiency of OLED devices. New techniques are also being developed to apply these OLEDs to flexible substrates using inkjet printers and thin film transistor arrays. These flexible substrates must have properties similar to glass, such as a smooth surface, transparency , thermal stability, solvent resistance, and low coefficient of thermal expansion (CLTE). The issues are not only being worked out in the area of academia but also by companies such as Eastman Kodak, Dow Chemical, DuPont, and Universal Display Technology. In order to move past these drawbacks, new and different approaches and solutions transcending disciplines in science and engineering will be required....
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- Spring '08
- Light-emitting diode, Display technology, Eastman Kodak, Organic electronics, light-emitting diodes, Organic LED