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Polymer-based semiconductor fiber and preparation and application thereof

A semiconductor and polymer technology, which is applied in the continuous production process of polymer-based highly oriented semiconductor fibers and related application fields, can solve problems such as poor mechanical properties, complex preparation methods, and multi-transistor circuit integration, and achieves good uniformity, Good toughness and high stability

Active Publication Date: 2022-02-18
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation method is generally complicated, and it is impossible to carry out continuous production and integration of multi-transistor circuits, and they all belong to the existing P-type fibers. Their mechanical properties are poor, and the mechanical modulus and fracture stress are 8.7GPa and 312MPa respectively.

Method used

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  • Polymer-based semiconductor fiber and preparation and application thereof
  • Polymer-based semiconductor fiber and preparation and application thereof
  • Polymer-based semiconductor fiber and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] A method for preparing a polymer-based semiconductor fiber, comprising the steps of:

[0077] (1) configuring the conjugated semiconducting polymer as a spinning stock solution for wet spinning;

[0078] The conjugated semiconducting polymer is: BBL.

[0079] The solvent of spinning dope is: methanesulfonic acid;

[0080] In the spinning dope, the concentration of the conjugated semiconducting polymer is 5 mg ml -1 .

[0081] (2) The spinning dope obtained in step (1) is subjected to wet spinning, and the fine spinning stream extruded from the spinneret enters the first coagulation bath and the second coagulation bath successively and then is dried, and then the dried The fibers are collected, and the drawing is continued during the process from the extrusion of the spinneret to the collection, and the draft ratio is 2; then the collected fibers are annealed to obtain polymer-based semiconductor fibers;

[0082] The spinneret is #1 spinneret, and the extrusion speed...

Embodiment 2

[0089] A method for preparing a polymer-based semiconductor fiber, comprising the steps of:

[0090] (1) configuring the conjugated semiconducting polymer as a spinning stock solution for wet spinning;

[0091] The conjugated semiconducting polymer is: P3CPT.

[0092] The solvent of spinning dope is: methanesulfonic acid;

[0093] In the spinning dope, the concentration of the conjugated semiconducting polymer is 5 mg ml -1 .

[0094] (2) The spinning dope obtained in step (1) is subjected to wet spinning, and the fine spinning stream extruded from the spinneret enters the first coagulation bath and the second coagulation bath successively and then is dried, and then the dried The fibers are collected, and the drawing is continued during the extrusion process from the spinneret to the collection, and the draft ratio is 1.5; then the collected fibers are annealed to obtain polymer-based semiconductor fibers;

[0095] The spinneret is #2 spinneret, and the extrusion speed of...

Embodiment 3

[0102] A method for preparing a polymer-based semiconductor fiber, comprising the steps of:

[0103] (1) configuring the conjugated semiconducting polymer as a spinning stock solution for wet spinning;

[0104] The conjugated semiconducting polymer is: polypyrrole.

[0105] The solvent of the spinning dope is: N,N-dimethylformamide;

[0106] In the spinning dope, the concentration of the conjugated semiconducting polymer is 5 mg ml -1 .

[0107] (2) The spinning stock solution obtained in step (1) is subjected to wet spinning, and the fine spinning stream extruded through the spinneret first enters the first coagulation bath and the second coagulation bath successively and then is dried, and then the dried The fibers are collected, and the drawing is continued during the extrusion process from the spinneret to the collection, and the draft ratio is 3; then the collected fibers are annealed to obtain polymer-based semiconducting fibers;

[0108] The spinneret is #3 spinnere...

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Abstract

The invention relates to a polymer-based semiconductor fiber and preparation and application thereof. The preparation method comprises the steps that a conjugated semiconductor polymer is prepared into a spinning solution for wet spinning, wet spinning is conducted, spinning trickles extruded through a spinning nozzle sequentially enter a first coagulating bath and a second coagulating bath and then are dried, the dried fibers are collected, and the collected fibers are annealed to obtain polymer-based semiconductor fibers; and the surface and the interior of the fiber have pore structures, and the fiber also has an oriented structure. The breaking stress of the polymer-based semiconductor fiber reaches 700MPa; and the conductivity of the polymer-based semiconductor fiber is 1 * 10 <-12 > S cm <-1 >-13 S cm <-1 >, and the carrier mobility is 0.0001-100 cm < 2 > V <-1 > s <-1 >. The polymer-based semiconductor fiber is made into a fiber organic electrochemical transistor device, the transconductance of the device is remarkably improved, and the conversion efficiency of converting modulation of gate voltage (VG) into modulation of drain current (ID) flowing through the whole channel is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of polymer fibers, and relates to a polymer-based semiconductor fiber and its preparation and application, in particular to a continuous production process of a polymer-based highly oriented semiconductor fiber based on a proton exchange wet spinning method and related applications. Background technique [0002] With the increasingly demanding requirements of modern microelectronic components, the flexibility and fibrillation of electronic devices has attracted increasing attention for various applications. In order to realize the continuous non-inductive physiological signal acquisition of the smart clothing system, it is urgent to develop the sensor / weaving circuit / actuator of the fiber shape, and realize the fabric design of the device through controllable weaving. At present, fiber-shaped sensors / actuators / energy devices have been widely developed, but the information processing and control circuits of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/74D01F6/76H01L51/05H01L51/30
CPCD01F6/74D01F6/76H10K85/114H10K85/111H10K85/151H10K85/113H10K10/00
Inventor 王刚蒋浩冯良文王宏志
Owner DONGHUA UNIV
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