Tuned Transport Behavior of the IPA-Treated PEDOT:PSS Flexible Temperature Sensor via Screen Printing
| Autor: | Xinzhi Shi, Zhangming Liu, Jinhua Peng, Linhui Wu, Rui Liu, Shuangli Ye, Jun Qian, Chang Qi, Yuan Xu |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Polaron 01 natural sciences Electronic Optical and Magnetic Materials Styrene chemistry.chemical_compound symbols.namesake Sulfonate chemistry PEDOT:PSS Chemical engineering 0103 physical sciences Screen printing Materials Chemistry symbols Electrical and Electronic Engineering 0210 nano-technology Raman spectroscopy Temperature coefficient |
| Zdroj: | Journal of Electronic Materials. 50:2356-2364 |
| ISSN: | 1543-186X 0361-5235 |
| DOI: | 10.1007/s11664-021-08740-y |
| Popis: | A flexible temperature sensor based on poly-(3, 4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) with isopropyl alcohol (IPA) treatment is successfully fabricated by screen printing. The distribution of PEDOT is investigated by the SEM, AFM, and Raman techniques. It can be found that the microstructure is manipulated by the ratio of the PEDOT:PSS to IPA content. Raman spectra demonstrate that the transition between quinoid and benzoid structures of PEDOT are tuned by IPA treatment as well. The temperature dependence of resistance for IPA-treated PEDOT:PSS film is found to be well fitted by non-adiabatic small polaron hopping transport. Moreover, a constant temperature coefficient of resistance (TCR) value can be obtained by the optimized ratio of IPA to PEDOT:PSS. Therefore, this paper suggests that the tuned microstructure of PEDOT:PSS film can be realized by IPA treatment, which plays an important role in the physical properties of the temperature sensor based on PEDOT:PSS. |
| Databáze: | OpenAIRE |
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