ORGANIC PHOTOELECTRIC CONVERSION ELEMENT AND IMAGING DEVICE
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United States of America Patent
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Issued Date -
Sep 24, 2015
app pub date -
Dec 19, 2014
filing date -
Mar 19, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
According to one embodiment, an organic photoelectric conversion element has a positive electrode, a first charge transport layer, an organic photoelectric conversion, a second charge transport layer and a negative electrode, in this order. The first charge transport layer contains a first charge transport material having a LUMO level equal to or greater than that of the organic photoelectric conversion layer. The second charge transport layer contains a second charge transport material having a HOMO level equal to or less than that of the organic photoelectric conversion layer. The first charge transport layer contains an electron trapping/scattering material that has a HOMO level which is +0.5 eV or more, or −0.5 eV or less, than the HOMO level of the first charge transport material, and has a LUMO level which is between −0.5 eV to +0.5 eV of the LUMO level of the first electron transport material.
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