Bilayer composite electrodes for diodes

Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material

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257 10, 257 82, 257 84, 257734, H01L 3524, H01L 5100

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active

057238731

ABSTRACT:
An ohmic hole injecting electrode or contact for diode structures is disclosed. It is formed of multilayer composite materials and gives superior results in this application. The composite materials include a layer of a high work function inorganic material and a layer of conductive polyaniline ("PANI"). In preferred embodiments, the anode has substantial transparency. These preferred materials can function as transparent electrodes in light-related diodes such as LEDs and photovoltaic cells where they exhibit lower turn on voltages and higher efficiencies.

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