Idemitsu Kosan Company, Limited

Ryo Naraoka

Chishio Hosokawa

Hitoshi Kuma

Hiroyuki Saito

Tomoki Kato

Masaki Numata

Hiroyuki Iwabuchi

Masahiko Fukuda

The first electrode has a convexo-concave structure including a plurality of convex portions and a plurality of concave portions at an interface with the organic compound layer. The convexo-concave structure has at least one cross section in a thickness direction of the light-transmissive substrate, the cross section being shaped in a sine-wave curve or a curve represented by a sum of a plurality of sine waves having different amplitudes or angles. A distance between a convex portion and an adjacent convex portion forming the convexo-concave structure is equal to or more than a peak wavelength of light radiated from the emitting layer and is equal to or less than a propagation distance (L) of surface plasmon at the interface between the first electrode having the convexo-concave structure and the organic compound layer.

Organic electroluminescent element and electronic instrument

A top-emitting organic electroluminescence device including sequentially a first electrode, one or more organic layers comprising an emitting layer, a second electrode and a capping layer, wherein the capping layer comprises a compound represented by the following formula (1): 

Organic electroluminescence device

An organic EL device comprises: a light-transmissive substrate; a transparent electrode; an organic emitting layer; and an opposing electrode. A light-extraction layer provided by layering a high refractive index layer adjoining the transparent electrode and a low refractive index layer adjoining the light-transmissive substrate includes recess-protrusion units each provided by a protrusion and a recess at an interface between the high refractive index layer and the low refractive index layer. In at least one of the recess-protrusion units, a distance from the interface between the high refractive index layer and the low refractive index layer to an interface between the transparent electrode and the high refractive index layer is equal to or more than an optical coherence length and a height of the protrusion, a width of the protrusion and a gap between the protrusion and another protrusion adjoining the protrusion across the recess is 1 &#x3bc;m or more.

Organic electroluminescent element and lighting device

A top-emission organic electroluminescence device () includes in order a first electrode (), one or more organic layers (B) including a blue-emitting layer (B), a second electrode (), and a capping layer (), wherein the capping layer () is formed of a material that satisfies the expression 'n(&#x3bb;=430 nm)&#x2212;n(&#x3bb;=460 nm)&#x3e;0.08' (where, n(&#x3bb;=x nm) indicates a refractive index at a wavelength of x nm) and has an extinction coefficient of 0.1 or less at a wavelength of 430 to 500 nm.

Organic electroluminescence element

A photoelectric conversion device including a substrate, a photoelectric conversion element including a first electrode, a second electrode and an organic compound layer and a sealing member that are disposed in this order. When a cross section of the photoelectric conversion device in a thickness direction is observed with the sealing member being placed at an upper side, a bonding member seals the organic compound layer at an outside thereof. An output electrode on the sealing member has a protrusion. A side conductive portion is electrically connected with the protrusion in an up-and-down direction. A substrate conductive member electrically connected with the first electrode and the second electrode extends to an outside of the bonding member. An electrical connecting member electrically connects the side conductive portion to the substrate conductive member at a further outside of the bonding member.

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Sodegaura, Japan

Ryo Naraoka