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Article
Two new tercopolymers incorporating electron-rich benzodithiophene and electron-accepting pyrrolo[3,4-c]pyrrole-1,3-dione and difluorobenzothiadiazole derivatives for polymer solar cells
Two new tercopolymers (RP1 and RP2) containing electron-donating benzodithiophene, weak electron-accepting pyrrolo[3,4-c]pyrrole-1,3-dione derivative and strong electron-accepting 5,6-difluorobenzothiadiazole ...
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Article
Synthesis and properties of thiophene- and quinoxaline-based random copolymers for organic photovoltaics
In this study, a series of polymers (denoted as PTQxFs) were prepared from random copolymers—poly[(5,8-(6,7-difluoro-2,3-dihexylquinoxaline))-alt-(2,5-thiophene)]-ran-[(2,5-(3-dodecylthiophene))-alt-(2,5-thiophen...
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Article
Synthesis and photovoltaic properties of benzimidazole-based copolymer with fluorine atom
A new accepter unit, 5,6-difluoro-2,2-dimethyl-2H-benzo[d]imidazole, was prepared and utilized for the synthesis of the conjugated polymers containing electron donor–acceptor pair for OPVs. Difluoro-dimethyl-2H-b...
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Article
Opto-electrical, charge transport and photovoltaic property modulation of 2,5-di(2-thienyl)pyrrole-based polymers via the incorporation of alkyl, aryl and cyano groups on the pyrrole unit
To investigate the property modulation of 2,5-di(2-thienyl)pyrrole (TPT)-based polymers via the incorporation of alkyl, aryl or cyano groups on the TPT unit, four new polymers namely P(BDT-AlTPTH), P(BDT-AlTP...
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Article
Synthesis of a conjugated copolymer with benzodithiophene and benzimidazole units
A new accepter unit, dimethyl-2H-benzimidazole, was prepared and utilized for the synthesis of conjugated polymers containing an electron donor–acceptor pair for organic photovoltaics (OPVs). A dimethyl-2H-benzim...
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Article
Synthesis and characterization of polycyclopentaphenanthrene with carbazole or oxidiazole pendant units
Poly(2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[def]phenanthrene)) is a blue light emitting conjugated polymer that is stable even after annealing at 150 °C or operation of the electroluminescence (EL) device in ai...
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Article
Color stability of conjugated polymer with difluoro groups in vinylene units
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Article
Di-aryl substituted poly(cyclopenta[def]phenanthrene) derivatives containing carbazole and triphenylamine units in the main chain for organic light-emitting diodes
The syntheses and characterization of poly(2,6-(4,4-bis(4-((2-ethylhexyl)oxy)phenyl)-4H-cyclopenta[def] phenanthrene)-alt-triphenylamine-4,4′-diyl) (TPA-PCPP), poly(2,6-(4,4-bis(4-((2-ethylhexyl)oxy)phenyl)-4H-cy...
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Article
Syntheses and Characterization of the Alternating Polymers Based on Cyclopenta[def]phenanthrene Backbone with Spiro Group
New electroluminescent spiro-PCPP copolymers, poly((2,6-(3′,6′-bis(2-ethylhexyloxy)-spiro(4H-cyclopenta[def]phenan-threne-4,9′-[9H]fluorene)))-alt-(2,6-(4,4-bis(2-ethylhexyl)-4H-cyclopenta[def]phenanthrene))) (sp...
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Article
Synthesis and Characterization of Novel Conjugated Polymer with 4H-Cyclopenta[def]phenanthrene and the Sulfanyl Group
A novel 4H-cyclopenta[def]phenanthrene (CPP) derivative with bis-methylsulfanyl-methylene unit was synthesized from CPP, CH3I, and CS2. The structure and absolute configuration was determined on the basis of spec...
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Article
Novel Electroluminescent PPV Copolymers Containing Si-phenyl and Difluorovinylene Units
New electroluminescent copolymers with fluoro groups in vinylene units, poly(2-(3′-dimethyloctylsilylphenyl)-p-phenylenevinylene-co-p-phenylenedifluorovinylene)s (SiPhPPVPDFVs), have been synthesized by the Gilch...
