摘要:
An organic electroluminescent device (1) including an anode (2), a cathode (6), and at least a first layer (3), a second layer (4), and a third layer (5) provided between the anode (2) and the cathode (6) in that order from the anode side. At least one of the first to third layers (3), (4), and (5) includes a phosphorescent compound. At least one of the first to third layers (3), (4), and (5) is an emitting layer. At least three compounds respectively forming the first layer (3), the second layer (4), and the third layer (5) other than the phosphorescent compound are compounds of the following formula (1). wherein R1 to R7 each represent a hydrogen atom or a substituent, provided that adjacent substituents may form a ring.
摘要:
An organic electroluminescent device (1) including an anode (2), a cathode (6), and at least a first layer (3), a second layer (4), and a third layer (5) provided between the anode (2) and the cathode (6) in that order from the anode side. At least one of the first to third layers (3), (4), and (5) includes a phosphorescent compound. At least one of the first to third layers (3), (4), and (5) is an emitting layer. At least three compounds respectively forming the first layer (3), the second layer (4), and the third layer (5) other than the phosphorescent compound are compounds of the following formula (1). wherein R1 to R7 each represent a hydrogen atom or a substituent, provided that adjacent substituents may form a ring.
摘要:
The present invention provides a novel metal complex compound represented by the following general formula (1), and an organic electroluminescence element which has a high efficiency of light emission and a long lifetime, wherein one of organic thin film layers including at least a light emitting layer between an anode and a cathode, at least one of the organic thin film layers contains the metal complex compounds. (L1)mM(L2)n (1) wherein M represents Ir, Pt and Rh; L1 and L2 represents mutually different bidentate ligands; (L1)mM as a partial structure is represented by general formula (2) and M(L2)n as a partial structure is represented by general formula (3): and m and n are each an integer of 1 or 2, provided that m+n is a integer of 2 or 3. wherein ring A1 represents an aromatic hetrocyclic ring group; and ring B1 represents an aryl group, provided that the ring A1 and the ring B1 are covalently linked to each other via Z which represents a single bond or the like. wherein R1, R2, R2′ and R3 each independently represent an alkyl group or the like; R1 and R2, R1 and R2′, R2 and R2′, R2 and R3, and R2′ and R3 may combine with each other to form a cyclic structure; and Y represents a group represented by O or S.
摘要:
An organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer comprising a light emitting layer and disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises an anthracene derivative having a specific structure singly or as a component of a mixture, and an anthracene derivative having a specific asymmetric structure and providing an organic electroluminescence device exhibiting a great efficiency of light emission and having a long life, are provided.
摘要:
Pyrazole derivatives of the general formula (I) or salts thereof, ##STR1## wherein each symbols are as defined in the specification, herbicides containing the above compounds as active ingredients, and aromatic carboxylic acid derivatives or salts thereof suitable as intermediates for the production of the above pyrazole derivatives.The above pyrazole derivatives or salts thereof, provided by the present invention, cause no phytotoxicity on upland field crops such as corn, etc., and can selectively control a broad range of upland weeds such as grass weeds and broad-leaved weeds at a low dosage in pre-emergence treatment and in post-emergence treatment.
摘要:
An indenoperylene derivative represented by a formula (A-1), wherein in the formula (A-1), at least one of R1 to R16 is an amino group represented by the formula (A-2). In the formula (A-2), Ra and Rb are a substituted or unsubstituted aryl group having 6 to 40 ring carbon atoms or a substituted or unsubstituted alkyl group having 1 to 40 carbon atoms.
摘要:
An organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer comprising at least one layer comprising a light emitting layer and disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises an anthracene derivative having a specific structure singly or as a component of a mixture, and an anthracene derivative having a specific asymmetric structure and providing an organic electroluminescence device exhibiting a great efficiency of light emission and having a long life, are provided.
摘要:
An organic electroluminescence device comprising a compound having a specific structure having a heteroatom and an organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer which comprises at least one layer comprising at least a light emitting layer and is disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises the above compound. The device provides excellent efficiency of light emission, forms no defects in pixels, exhibits excellent heat resistance and has a long life.
摘要:
A metal complex compound with a structure containing metals such as iridium, and a monodentate ligand such as a hydrogen atom other than a bidentate ligand. An employment of a metal compound with a ligand having two oxygen atoms as a material for preparing the metal complex compound. An organic electroluminescence device being composed of one or more organic thin film layers having at least a light emitting layer sandwiched between a pair of electrodes wherein at least one of the organic thin film layer contains the metal complex compound. The organic electroluminescence device has an excellent stability, a great efficiency and a long lifetime of light emission due to the metal complex compound.