Highly transparent organic light emitting device employing a non-metallic cathode
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United States of America Patent
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Oct 22, 2002
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N/A
app pub date -
Nov 5, 1997
filing date -
Nov 3, 1997
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Abstract
Organic light emitting devices are disclosed which include a heterostructure for producing electroluminescence wherein the heterostructure includes a non-metallic cathode. As a representative embodiment of the present invention, the heterostructure for producing electroluminescence includes in order, a non-metallic cathode layer (1), an electron injecting interface layer (6), an electron transporting layer (2), a hole transporting layer (3), and an anode layer (4); wherein the non-metallic cathode layer (1) includes an indium-tin oxide layer in contact with a copper phthalocyanine layer which functions as the electron injecting interface layer (6).
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