Facile Synthesis of Triphenylamine Based Hyperbranched Polymer for Organic Field Effect Transistors
Abstract
:1. Introduction
2. Experimental Details
2.1. Materials
2.2. General Characterization
2.3. Synthesis
2.3.1. Synthesis of Tris(4-bromophenyl)amine
2.3.2. Synthesis of Polymer Tris[(4-phenyl)amino-alt-4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b;4,5-b’]dithiophene] (PTPABDT)
2.4. Organic Field Effect Transistors (OFET) Fabrication
3. Results and Discussion
3.1. PTPABDT Synthesis and Characterization
3.2. Optical Properties
3.3. Electrochemical Properties
3.4. I-V Characteristics of PTPABDT Based OFETs Device.
3.5. Interfacial Electron Transport Properties: EIS-Nyquist Plot
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Polymer | Mn(KDa)/PDI a | Td (°C) b | λmax, Sol; Edge (nm) c | λmax, Film; Edge (nm) c | EHOMO (eV) d | ELUMO (eV) e | Egopt (eV) f |
---|---|---|---|---|---|---|---|
PTPABDT | 11.7/1.92 | 398 | 635, 730 | 640, 734 | −5.29 | −3.60 | 1.69 |
Polymer | T (°C) | µmax (cm2V−1s−1) | µavg (cm2V−1s−1) | VT (V) | Ion/off | SS (Vdec−1) |
---|---|---|---|---|---|---|
TPABDT | Pristine | 2.08 × 10−4 | (1.24 ± 0.592) × 10−4 | −16.03 ± 2.05 | 7.62 × 100 | −8.92 ± 1.17 |
100 | 1.22 × 10−3 | (1.05 ± 0.125) × 10−3 | −24.18 ± 0.50 | 7.47 × 102 | −13.41 ± 0.92 | |
150 | 1.02 × 10−3 | (7.41 ± 1.75) × 10−4 | −26.37 ± 1.53 | 4.67 ×102 | −15.22 ± 0.49 | |
200 | 7.28 × 10−4 | (5.70 × 1.04) × 10−4 | −30.13 ± 1.51 | 4.35 × 102 | −16.29 ± 0.77 |
Polymer | µmax (cm2V−1s−1) | Ion/off | Reference |
---|---|---|---|
PI(DAC-6FDA) | 8.54 × 10−2 | 2.2 × 105 | [27] |
PI(TPA-6FDA) | 1.48 × 10−3 | 5 × 102 | [27] |
Poly TB | 3.0 × 10−6 | 850 | [28] |
PTTA2 | 4.86 × 10−4 | 1.24 × 102 | [31] |
PTPABDT | 1.22 × 10−3 | 7.47 × 102 | This work |
Bias Potential (mV) | Rs (Ω) | Rct1 (Ω) | Rct2 (Ω) | χ2 (× 10−4) |
---|---|---|---|---|
10 | 1.57 | 9.22 | 446 | 7.43 |
50 | 1.49 | 9.69 | 1003 | 15.9 |
100 | 1.48 | 9.51 | 1361 | 11.8 |
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Bathula, C.; Appiagyei, A.B.; Yadav, H.; K., A.K.; Ramesh, S.; Shrestha, N.K.; Shinde, S.; Kim, H.-S.; Kim, H.S.; Reddy, L.V.; et al. Facile Synthesis of Triphenylamine Based Hyperbranched Polymer for Organic Field Effect Transistors. Nanomaterials 2019, 9, 1787. https://doi.org/10.3390/nano9121787
Bathula C, Appiagyei AB, Yadav H, K. AK, Ramesh S, Shrestha NK, Shinde S, Kim H-S, Kim HS, Reddy LV, et al. Facile Synthesis of Triphenylamine Based Hyperbranched Polymer for Organic Field Effect Transistors. Nanomaterials. 2019; 9(12):1787. https://doi.org/10.3390/nano9121787
Chicago/Turabian StyleBathula, Chinna, Alfred Bekoe Appiagyei, Hemraj Yadav, Ashok Kumar K., Sivalingam Ramesh, Nabeen K. Shrestha, Surendra Shinde, Hyun-Seok Kim, Heung Soo Kim, Lebaka Veeranjaneya Reddy, and et al. 2019. "Facile Synthesis of Triphenylamine Based Hyperbranched Polymer for Organic Field Effect Transistors" Nanomaterials 9, no. 12: 1787. https://doi.org/10.3390/nano9121787