Thieno[3,4-c]Pyrrole-4,6-Dione and Dithiophene-Based Conjugated Polymer for Organic Field Effect Transistors: High Mobility Induced by Synergic Effect of H-Bond and Vinyl Linkage
| Autor: | Tan Luxi, Sifen Yang, Jing Li, Yuancheng Wang, Wanmei Qing, Zitong Liu, Yanping Ma, Xiaodi Gong, Xianfeng Liang |
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| Rok vydání: | 2016 |
| Předmět: |
Vinyl Compounds
Materials science Transistors Electronic Polymers and Plastics Annealing (metallurgy) Thiophenes 02 engineering and technology Conjugated system 010402 general chemistry Photochemistry 01 natural sciences chemistry.chemical_compound Materials Chemistry Pyrroles Thin film HOMO/LUMO Pyrrole chemistry.chemical_classification Organic field-effect transistor Hydrogen bond Organic Chemistry Temperature Hydrogen Bonding Electrochemical Techniques Polymer 021001 nanoscience & nanotechnology 0104 chemical sciences Crystallography chemistry Quantum Theory Thermodynamics 0210 nano-technology |
| Zdroj: | Macromolecular Rapid Communications. 37:1357-1363 |
| ISSN: | 1022-1336 |
| Popis: | Here, a conjugated polymer VTTPD based on thieno[3,4-c]pyrrole-4,6-dione (TPD) and dithiophene with vinyl as linker is synthesized and characterized. Electrochemical and optical studies indicate the LUMO and HOMO energies of the polymer are -3.70 and -5.39 eV. Theoretical calculation with density functional theory suggests that H-bonds are formed between the TPD carbonyl (O) and its neighboring vinyl (H) which benefit the planarity and π-conjugation of the polymer backbone. Bottom contact bottom gate organic field effect transistor devices based on VTTPD are fabricated and examined in air. After annealing at 160 °C, the devices exhibit excellent performance of μh = 0.4 cm(2) V(-1) s(-1) , Ion/off = 10(6) , Vth within -10 V to -5 V. Thin film morphologies before and after the annealing process are also investigated with XRD and AFM. |
| Databáze: | OpenAIRE |
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