Method for preparing macromolecular field effect transistor with ultrahigh charge mobility
A technology of field effect transistors and charge mobility, applied in the field of polymer field effect transistors, can solve the problems of complex preparation process, high price, unfavorable promotion, etc., and achieve the effect of good repeatability, low cost and low price
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Embodiment 1
[0054] Add polyacrylonitrile (Mw=80,000) and chloroauric acid tetrahydrate to dimethylformamide (DMF), the mass fraction of polyacrylonitrile is 8wt%, the mass fraction of chloroauric acid tetrahydrate is 2.7wt%, Stir to dissolve at 60°C for 2 hours, then cool to room temperature.
[0055] Put the mixed solution into the spinneret of the electrospinning equipment, the inner diameter of the spinneret head is 1mm, the aluminum sleeve is used as the anode, and the parallel aluminum sheet (the distance is 2.2cm) is used as the cathode to accept the product, and the distance between the two poles is The electrospinning was carried out at an applied voltage of 12 kV. In this way, aligned fibers will be obtained between the two parallel aluminum sheets of the cathode (this method can refer to the literature Appl. Phys. Lett. 2006, 89, 133125).
[0056] The obtained aligned fibers were collected with a clean quartz wafer substrate. Then put the quartz sheet in the saturated steam of...
Embodiment 2
[0061]8wt% polyacrylonitrile (Mw=80,000) and 2.7wt% chloroauric acid tetrahydrate were added to dimethylformamide (DMF), stirred and dissolved at 60°C for 2h, and then cooled to room temperature. Put the mixed solution into the spinneret, the inner diameter of the spinneret is 1mm, the aluminum sleeve is used as the anode, and two parallel aluminum sheets (with a distance of 2.2cm) are used as the cathode to accept the product, and the distance between the two poles is 15cm. Electrospinning was carried out at a voltage of 12kV, so that nanofibers arranged in parallel were collected between parallel aluminum sheets. The obtained aligned fibers were collected with a clean quartz wafer substrate. The fiber was then placed in an atmosphere saturated with aniline monomer. The gas phase polymerization time was adjusted to 10 hours at 60°C.
[0062] The device assembly process is consistent with that of Embodiment 1. The maximum field effect mobility of the transistor is about 4.7...
Embodiment 3
[0064] 8wt% polyacrylonitrile (Mw=80,000) and 4wt% chloroauric acid tetrahydrate were added to dimethylformamide (DMF), stirred and dissolved at 60°C for 2h, and then cooled to room temperature. Put the mixed solution into the spinneret, the inner diameter of the spinneret is 1mm, the aluminum sleeve is used as the anode, and two parallel aluminum sheets (with a distance of 2.2cm) are used as the cathode to accept the product, and the distance between the two poles is 15cm. Electrospinning was carried out at a voltage of 12kV, so that nanofibers arranged in parallel were collected between parallel aluminum sheets.
[0065] The obtained aligned fibers were collected with a clean quartz substrate. The fiber was then placed in an atmosphere saturated with aniline monomer. Gas-phase polymerization was carried out at 60°C for 30h. The obtained core-shell fibers were used to assemble polymer transistors, and the device assembly process was consistent with that of Example 1. The m...
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