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Thieno[3,2-b]thiophene b ]thiophene flanked para-azaquinodimethane it-extended aromatic-quinoidal polymers
被引:0
作者:
Dyaga, Bharath
[1
]
Waliszewski, Witold
[2
]
Ling, Zhitian
[3
]
Mayarambakam, Sasikumar
[1
]
Boyron, Olivier
[4
]
Pisula, Wojciech
[2
,3
]
Schmaltz, Bruno
[1
]
机构:
[1] Univ Tours, EA6299, Lab Phys Chim Mat & Electrolytes Energie (PCM2E), F-37200 Tours, France
[2] Lodz Univ Technol, Fac Chem, Dept Mol Phys, Zeromskiego 116, PL-90924 Lodz, Poland
[3] Max Planck Inst Polymer Res, Ackermannweg 10, D-55128 Mainz, Germany
[4] Univ Lyon, Univ Lyon 1, Equipe PCM, CPE Lyon,CNRS UMR 5128,Lab CP2M, F-69100 Villeurbanne, France
来源:
关键词:
Extended pi-conjugation;
Para-azaquinodimethane;
OFET;
Bond length alternation;
FIELD-EFFECT TRANSISTORS;
ALKYL SIDE-CHAINS;
CONJUGATED POLYMERS;
BUILDING-BLOCK;
SOLAR-CELLS;
DIKETOPYRROLOPYRROLE POLYMER;
RATIONAL DESIGN;
BAND;
ACCEPTOR;
SEMICONDUCTORS;
D O I:
10.1016/j.synthmet.2024.117751
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
A series of thieno[3,2-b]thiophene (TT) flanked para-azaquinodimethane (p-AQM) based quinoidal conjugated polymers PAQM2TT-T, PAQM2TT-BT and PAQM3TT were designed in a strategy to extend the aromatic-quinoidal pi-system. The three polymers were synthesized by Stille polycondensation, and their opto-electronic properties and device performance in field-effect transistors have been explored. From absorption spectroscopy, the polymers show low bandgaps (1.54-1.57 eV) and high HOMO energy levels. They exhibit typical p-type behavior according to the results of the characterization of the field-effect transistors with average charge carrier mobilities of 0.08 cm(2) V-1 s(-1) for PAQM2TT-T, 0.12 cm(2) V-1 s(-1) for PAQM2TT-BT and 0.05 cm(2) V-1 s(-1) for PAM3TT. This report presents an alternative pi-extended quinoidal-donor strategy to control the molecular design and properties of new p-AQM-based conjugated polymers.
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页数:8
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