Hamamatsu-photonics K.k.

Rohm Co., Ltd.

Other

Hitachi, Ltd.

Ricoh Company, Ltd.

Panasonic Corporation

Olympus Corporation

Centre National De La Recherche Scientifique

Pioneer Corporation

Idemitsu Kosan Company, Limited

University of Southern California

The University of Tokyo

Princeton University

Kyoto University

Nippon Kayaku Kabushiki Kaisha

Chihaya Adachi

Hajime Nakanotani

Takuma Yasuda

Katsuyuki Shizu

Toshinori Matsushima

Kenichi Goushi

Hiroko Nomura

Sangarange Don Atula Sandanayaka

Fatima Bencheikh

Hiroki Noda

Jean-Charles Ribierre

Takashi Fujihara

Hiroyuki Tanaka

Takehiro Takahashi

Hiroshi Miyazaki

Tetsuya Nakagawa

Chuanjiang Qin

Norimasa Yokoyama

Kazunori Togashi

Naoto Notsuka

Shigeo Hara

Takahiko Yamanaka

Keiro Nasu

Ryosuke Kondo

Masatsugu Taneda

Kou Yoshida

Takahiro Higuchi

Taro Furukawa

Toru Hirohata

Yoshitake Suzuki

Ping Kuen Daniel Tsang

Jie Li

Masaki Numata

Shintaro Nomura

Ayataka Endo

Hirokazu Kuwabara

YuSeok Yang

Inseob Park

Takuro Nishimoto

Masayuki Yahiro

Hiroki Uoyama

Qisheng Zhang

Takeshi Komino

Saeyoun Lee

Jun-Yun Kim

Junichi Nishide

Stephen R Forrest

Kazunori Ueno

Koki Yano

Takahiro Kai

Masaaki Ikeda

Marc A Baldo

Yasuo Sasaki

Yasuyuki Sasada

Shigeyuki Matsunami

Kiyoshi Matsumoto

Shigeru Kusano

Takuji Hatakeyama

Isao Shimoyama

Manabu Nakata

Ryota Arai

Kunihisa Kato

Dai Ohnishi

Kei Sakanoue

Kazuo Takimiya

Kensuke Masui

Koichi Karaki

Yasukazu Nakata

Kazuaki Yoshimura

Takahito Oyamada

Hayato Kakizoe

Junzo Otera

Teruaki Hayakawa

Yasuhiro Kondo

Tetsuzo Miki

Atsushi Kawada

Koji Miyazaki

Hironori Kaji

Asuka Yoshizaki

Atsushi Wakamiya

Akihiro Orita

Ryota Kabe

Tetsuo Kan

Katsuaki Suzuki

Hiroshi Ookuma

Yu Hidaka

Woong Shin

Yoshiharu Ajiki

Yasujiro Murata

Kazutake Hagiya

Masato Moriwake

JiYoung Lee

Takumi Shibata

Anthony D'Aleo

William John Potscavage, Jr

Frederic Fages

Sae Youn Lee

Elena Zaborova

Bo Li

James MacDonald

Disclosed are an element comprising a substrate and at least two different optoelectronic devices, wherein the at least two different optoelectronic devices are monolithically fabricated on the substrate; and a method for producing the same. Also disclosed is an organic semiconductor laser diode comprising a substrate, an insulating grating, a first electrode, an organic layer and a second electrode in this order.

Element, method for producing same and organic semiconductor laser diode

Provided is an organic light-emitting element that is excited by an electromagnetic wave. The organic light-emitting element includes: a first electrode; a second electrode disposed to face the first electrode; an organic light-emitting layer disposed between the first electrode and the second electrode, where separation of charges occurs due to incidence of the electromagnetic wave; a hole transporting layer disposed between the first electrode and the organic light-emitting layer; and a charge block layer disposed between the second electrode and the organic light-emitting layer. The charge block layer has a LUMO level shallower than a LUMO level of organic light emitters included in the organic light-emitting layer.

Organic light-emitting element, light-emitting device, and light-emitting method

Using a compound represented by a general formula (A)m-L-(D)n, a light-emitting device having a high emission efficiency can be provided. L is an (m+n)-valent aromatic linking group; A is a group having a positive Hammett's σvalue; D is a group having a negative Hammett's σvalue; m is an integer of 1 or more; n is an integer of 2 or more. Two of plural D's differ in point of the substituent condition at specific aromatic rings.

Compound, light-emitting material and light-emitting element

An organic electroluminescent device having an anode, a cathode, and a light-emitting layer between the anode and the cathode, wherein the light-emitting layer contains at least a first organic compound, a second organic compound and a third organic compound satisfying the following formula (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light-emitting material, has a high light emission efficiency. Formula (A): E(A)>E(B)>E(C) wherein E(A), E(B) and E(C) each represent a lowest excited singlet energy level of the first organic compound, the second organic compound and the third organic compound, respectively.

Organic electroluminescence element

Luminescent particles with a maximum diameter of less than 100 μm are produced by stirring an emulsion material, including a host material, an organic luminescent material containing no heavy metal element, a surfactant and water, under conditions that melt the host material, thereby forming an emulsion, and then cooling the emulsion. This method can provide luminescent particles which are highly safe and which exhibit high luminous efficiency in water.

Method for producing luminescent particles, luminescent particles, and bioimaging material

An organic electroluminescent device having a structure of at least an anode, a light-emitting layerand a cathodelayered in that order, wherein the light-emitting layercontains a first host material, a second host material and a light-emitting material of a dopant, and both the first host material and the second host material have a lowest excited triplet energy level higher than the lowest excited triplet energy level of the light-emitting material. The device is protected from performance deterioration with time in driving and has a long lifetime.

Organic electroluminescent device

Disclosed are a current excitation type organic semiconductor laser containing a pair of electrodes, an organic laser active layer and an optical resonator structure between the pair of electrodes and a laser having an organic layer on a distributed feedback grating structure. The lasers include a continuous-wave laser, a quasi-continuous-wave laser and an electrically driven semiconductor laser diode.

Continuous-wave organic thin-film distributed feedback laser and electrically driven organic semiconductor laser diode

An organic-inorganic perovskite satisfying E<Eand E-E≤0.1 eV has a high emission efficiency. Erepresents the excited singlet energy level in emission of an inorganic component, Erepresents the excited triplet energy level in emission of an inorganic component, Erepresents the excited triplet energy level in emission of an organic component.

Organic-inorganic perovskite, film, light-emitting film, delayed fluorescence-emitting film, light-emitting element, and method for producing light-emitting element

Disclosed is a current-injection organic semiconductor laser diode comprising a pair of electrodes, an optical resonator structure, and one or more organic layers including a light amplification layer composed of an organic semiconductor, which has a sufficient overlap between the distribution of exciton density and the electric field intensity distribution of the resonant optical mode during current injection to emit laser light.

Current-injection organic semiconductor laser diode, method for producing same and program

An organic electroluminescent device having an anode, a cathode, and a light emitting layer between the anode and the cathode, in which the light emitting layer contains a first organic compound, a second organic compound, and a third organic compound that satisfy the following expression (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light emitting material, is capable of enhancing the light emission efficiency. E(A), E(B) and E(C) represent a lowest, singlet excitation energy level of the first, second and third organic compound, respectively.E(A)>E(B)>E(C)  (A)

An organic light-emitting device containing both a compound represented by the following general formula (1) and a compound represented by the following general formula (2) has a high light emission efficiency. The rings a to c each are a benzene ring that can be optionally condensed, Rand Reach represent a substituted or unsubstituted aryl group, etc., four of Rto Reach are a substituted or unsubstituted carbazol-9-yl group, but all of these four are not the same, and the remaining one is a hydrogen atom, a cyano group, etc.

Organic light emitting element, composition and membrane

An organic light-emitting device having a perovskite layer having a thickness of 50 nm or more has a low drive voltage and a high power efficiency, and can suppress interelectrode short-circuiting and current leakage.

Organic light-emitting element

Provided is a light-emitting device including an organic light-emitting element and a control unit that controls the organic light-emitting element. The organic light-emitting element includes a first electrode, a second electrode, and an organic light-emitting layer which is disposed between the first electrode and the second electrode and in which separation of charges occurs due to incidence of excited light. The control unit changes a potential difference between the first electrode and the second electrode so that recoupling of the charges occurs, in a second period after passage of a delay period from a first period in which the excited light is incident to the organic light-emitting layer.

Light-emitting device, light-emitting method, and organic light-emitting element

A compound represented by the following general formula is excellent in light emission properties. Rand Reach independently represent a fluorinated alkyl group, D represents a substituent in which Hammett's &#x3c3;value is negative, and A represents a substituent in which Hammett's &#x3c3;value is positive. 

Light-emitting material, compound, and organic light-emitting element

Growing community of inventors

Fukuoka, Japan

Chihaya Adachi