1361113-11-2

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• 1361113-09-8 1,1'-(4,4'-(4-bromophenylazanediyl)bis(4,1-phenylene))dihexan-1-one 
• 1333316-17-8 7-bromobenzo[5,6][1,4]thiazolo[2,3,4-kl]phenothiazine 

Relevant academic research and scientific papers

Acetylene-bridged dyes with high open circuit potential for dye-sensitized solar cells

A series of simple metal-free organic dyes MS1-MS3 have been designed and synthesized, and their optical, electrochemical, and photovoltaic properties were investigated. The molecular structures are based on a push-pull framework with a triphenylamine, naphthyldiphenylamine, or anthracenyl diphenylamine as the donor connected to a carboxyphenyl acceptor via a CC bond. The speciality of this new dye design is to obtain higher device open-circuit potentials. The dye-sensitized solar cells using this new sensitizer in combination with I -/I3- exhibited exceptionally high V OC values of 810, 844, and 866 mV for MS1, MS2, and MS3, respectively. The absorption bands of the anthracene-bridged dye MS3 showed remarkable peak broadening and red shifts due to the strong electronic coupling between the donor and bridge facilitated by the C-C triple bond, significantly promoting the light-harvesting capability. The resulting devices of MS3 showed large IPCE values of 75-80% in the region 370-590 nm, giving JSC/mA cm-2 = 8.16, VOC/mV = 866, FF = 0.76, and η = 5.44% under standard AM 1.5G one sun irradiation.

DYE, AND PHOTOELECTRIC CONVERSION ELEMENT AND PHOTOELECTROCHEMICAL CELL USING THE SAME

PROBLEM TO BE SOLVED: To provide a photoelectric conversion element and photoelectrochemical cell that achieves a high photoelectric conversion efficiency and in addition that has excellent durability, as well as to provide a dye used therein. SOLUTION: Provided is a dye represented by formula: MLt2L1. (M is ruthenium, osmium, iron, rhenium or technetium; Lt2 is a tridentate ligand represented by the formula (2-2); and L1 is a tridentate ligand of bis-pyrazole-substituted pyridine compound.). (R1 and R2 is -COOH or the like, La is a single bond or an arylene group; n1 is an integer of 1 to 3; n2 is an integer of 1 to 4; R6 is a substituent containing a C1 to 30 alkyl group or the like; and n6 is an integer of 1 to 5.). SELECTED DRAWING: Figure 1 COPYRIGHT: (C)2016,JPOandINPIT

Molecular engineering of thia-bridged triphenylamine heterohelicenes as novel organic dyes for dye-sensitized solar cells

Three organic sensitizers incorporating thia-bridged heterohelicene unit, thiophene-conjugate bridge, and cyanoacrylic acid were synthesized. The power conversion efficiency was quite sensitive to the substituents on heterohelicene donor group. Under stan