Buchanan, Ingersoll & Rooney PC
Organic charge transport layer, organic EL device, organic semiconductor device, and organic photoelectric device
The present invention relates to an organic charge transport layer having a low refractive index, and to an organic EL device, an organic semiconductor device, and an organic photoelectric device which are provided with the organic charge transport layer. An object of the present invention is to provide an organic semiconductor thin film having a dramatically reduced refractive index without impairing conductivity, by mixing a predetermined amount of an electret material into an organic semiconductor material. The organic charge transport layer according to the present invention is characterized by containing an organic semiconductor material and an electret material. It is preferable that the organic semiconductor material is a hole transport material and the electret material has a refractive index of 1.5 or lower.
NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY
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Wataru Yasutaka Daisuke
Aita Suzuki Yokoyama