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.
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.
Department of Chemical Engineering, Chongqing University, Chongqing, 400044, China.
Wanmei
W
Qing
Chonqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
Xiaodi
X
Gong
Chonqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
Xianfeng
X
Liang
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratories of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Yuancheng
Y
Wang
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratories of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Sifen
S
Yang
Department of Chemical Engineering, Chongqing University, Chongqing, 400044, China.
Luxi
L
Tan
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratories of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Yanping
Y
Ma
Beijing National Laboratory for Molecular Sciences, CAS Key Laboratories of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
Zitong
Z
Liu
Chonqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, 400714, China.
Jing
J
Li
D055664:Electrochemical Techniques; D006860:Hydrogen Bonding; D011758:Pyrroles / Q000737:chemistry*; D011789:Quantum Theory; D013696:Temperature; D013816:Thermodynamics; D013876:Thiophenes / Q000737:chemistry*; D014173:Transistors, Electronic; D014753:Vinyl Compounds / Q000737:chemistry*
D011758:Pyrroles; D013876:Thiophenes; D014753:Vinyl Compounds
conjugated polymers; hydrogen bonds; organic field effect transistors; thieno[3,4-c]pyrrole-4,6-dione; vinyl linkages