DEVICE HAVING HOLE INJECTION TRANSPORT LAYER AND FABRICATION PROCESS, AND INK FOR FORMING HOLE INJECTION TRANSPORT LAYER

摘要

PROBLEM TO BE SOLVED: To provide a device which achieves a long lifetime while using a simple fabrication process.

SOLUTION: A device includes two or more electrodes facing each other on a substrate, and a hole injection transport layer arranged between two electrodes, wherein the hole injection transport layer contains at least a transition metal compound which contains a transition metal oxide, a transition metal and a protective agent, or contains nano particles containing a transition metal which contains at least a transition metal compound containing a transition metal oxide, and a protective agent.

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