Organic semiconductor devices: Physics and applications

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A brief introduction to the physics of organic semiconductors and some highlights from the development of organic light-emitting diodes (OLED), organic field-effect transistors (OFET), and organic photovoltaics (OPV) technologies, is presented. The temperature and electric field dependence of organic semiconductors varies from material to material, with different charge transport models appearing more appropriate in different circumstances. White-light OLEDs are demonstrated with fluorescent tube efficiency that relies on a tuning of both the electronic and optical properties of the system. The structure of three common OFETs include deposition of the active semiconducting layer as a neat, un-doped layer with charge flow through the channel relying on injection of charge from the contacts. Efficient organic solar cells can be realized with evaporated multi-layer small molecule devices similar to the structure of multi-layer small molecule LEDs.

Original languageEnglish
Pages (from-to)17-22
Number of pages6
JournalAustralian Physics
Issue number1
Publication statusPublished - Jan 2011

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