Chiral polypyrrole transistor and preparation method and application thereof
A technology of polypyrrole and transistor, which is applied in the direction of instruments, analytical materials, fiber processing, etc., can solve the problems of increased production cost, difficult polypyrrole structure regulation, and the electrochemical performance of transistors need to be improved, so as to achieve high practical application value and high stability Sex and sensitivity, easily adjustable effects
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[0034] In order to achieve the above object, the present invention provides a preparation method of a chiral polypyrrole transistor, comprising the following steps:
[0035] S1. After washing and drying the fiber monofilament, it is evenly wound into a coil for use;
[0036] S2. After dissolving the chiral small molecule compound, add pyrrole monomer and water under ice-water bath conditions, add the coil obtained in step S1 after fully stirring, add the aqueous solution of oxidant after stirring evenly, and take out the the coil;
[0037] S3. After washing the coils taken out in step S2, place them in a mixed solution of ethanol and hydrochloric acid to boil and reflux, and then take out and dry the coils to obtain fibers with surface-loaded chiral polypyrrole nanowires;
[0038] S4. Assembling the fibers with the chiral polypyrrole nanowires on the surface obtained in step S3 and a gel electrolyte to obtain a chiral polypyrrole transistor.
[0039] In step S1, the fiber mo...
Embodiment 1
[0047] This embodiment provides a preparation method of a chiral polypyrrole transistor, and the schematic diagram of the preparation process is as follows figure 1 shown, including the following steps:
[0048] S1. First ultrasonically clean the PET fiber monofilament with dilute hydrochloric acid for 2 hours, then place it in water, acetone, and ethanol for each ultrasonic cleaning for 20 minutes. After drying at room temperature, it is then evenly wound on a plastic circle to form a fiber coil , save it for later use.
[0049] S2. Dissolve 0.32 mmol of the chiral small molecule compound L-14PheCOOH in 40 mL of absolute ethanol, add 34 mmol of pyrrole monomer under ice-water bath conditions, add 160 mL of water after stirring, add the coil obtained in step S1 after stirring for 2 min, and stir again After 40 min, 34 mmol of ferric chloride hexahydrate dissolved in 10 mL of deionized water was added dropwise as an oxidant, and after 4 h of reaction, the coil was taken out. ...
Embodiment 2～5
[0065] Embodiments 2 to 5 respectively provide a method for preparing a chiral polypyrrole transistor. Compared with Embodiment 1, the difference is that the concentration of the aqueous solution of the oxidant in step S2, the chiral small molecule compound and the pyrrole monomer are changed. The molar ratio of the oxidant and the oxidant, and the remaining steps are the same as those in Example 1, and will not be repeated here. The corresponding parameters in each embodiment are shown in Table 1.
[0066] Process parameters in Table 1 Examples 2-5
[0067]
[0068]
[0069] After testing, the chiral polypyrrole transistors prepared in Examples 2 to 5 have similar chiral structures and higher transconductance signals as those in Example 1, and can achieve accurate and sensitive detection of antibodies.
[0070] It should be noted that those skilled in the art should understand that in the preparation method of the chiral polypyrrole transistor provided by the present i...
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