Laser element, compound, method for producing compound and lasing sensitizer
AssigneesKyushu University, National University Corporation, Koala Tech Inc.
InventorsSangarange Don Atula SANDANAYAKA, Kohona Pahala Walawwe Buddhika Sanjeewa Bandara KARUNATHILAKA, Umamahesh BALIJAPALLI, Adikari Mudiyanselage Chathuranganie SENEVIRATHNE, Toshinori MATSUSHIMA, Chihaya ADACHI
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Abstract
Disclosed is a laser device containing a. compound represented by the following formula in a light-emitting layer, R1 and R5 each represent a substituent having a positive Hammett's σp value, and R2 to R4, and R6 to R15 each represent a hydrogen atom or a substituent.
Claims19
A laser device containing a compound represented by the following formula (1) in a light-emitting layer:
- wherein R1 and R5 each independently represent a substituent having a positive Hammett's σp value, and R2 to R4, and R6 to R15 each independently represent a hydrogen atom or a substituent.
A compound represented by the following formula (3):
- wherein R21 and R25 each independently represent a substituent having a positive Hammett's σp value, R23 represents a substituent, R22, R24, and R26 to R35 each independently represent a hydrogen atom or a substituent, provided that when R21 and R25 each are a cyano group, R23 is a substituted aryl group, or a substituted or unsubstituted heteroaryl group.
A method for producing a compound represented by a formula (4), comprising a step of halogenating the 4-position of a 2,6-dicyano-1,1-diphenylphosphinine in which the 4-position is unsubstituted and the other position may be substituted, and a step of afterward reacting it with a compound represented by R43—H:
- wherein R43 represents a substituted aryl group, or a substituted or unsubstituted heteroaryl group, and R42, R44, and R46 to R55 each independently represent a hydrogen atom or a substituent.
A lasing sensitizer containing a compound represented by the following formula (2):
- Z1-L-Z2 Formula (2)
- wherein Z1 and Z2 each independently represent a substituted or unsubstituted diarylamino group, and the two aryl groups constituting the diarylamino group bond to each other directly or via a linking group, L represents a conjugated linking group that contains both a substituted or unsubstituted arylene group and a substituted or unsubstituted ethenylene group.
Dependencies are inferred from the claim text.