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Preparation method of large-sized 6,13-bis(triisopropylsilylethynyl)pentacene thin crystals

A technology of triisopropylsilyl and ethynyl, which is applied in 6 fields, can solve the problems of poor device performance uniformity, small crystallite size, and integration limitations of devices with the same performance in OFET arrays, and achieve the effect of good application potential

Inactive Publication Date: 2015-12-02
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the crystallite size prepared by inkjet printing is small, and the device performance uniformity of the OFET array is poor due to the large difference in the size and structural orientation of each crystallite, which has certain limitations for the integration of large-area devices with the same performance.

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  • Preparation method of large-sized 6,13-bis(triisopropylsilylethynyl)pentacene thin crystals
  • Preparation method of large-sized 6,13-bis(triisopropylsilylethynyl)pentacene thin crystals
  • Preparation method of large-sized 6,13-bis(triisopropylsilylethynyl)pentacene thin crystals

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with more specific embodiments, but it should be pointed out that the preparation method of the large-sized TIPS-PEN organic thin crystals of the present invention is not limited to this specific process or ratio. Those skilled in the art can obviously understand that the following explanations can be directly applied to other process parameters not specified here even without any adjustment or modification.

[0024] A method for preparing large-size 6,13-bis(triisopropylsilylethynyl)pentacene thin crystals, comprising the following steps:

[0025] 1) Dissolve high-purity 6,13-bis(triisopropylsilylethynyl)pentacene (usually, purity ≥ 99%) in a mixed solvent of n-dodecane and chlorobenzene to form a concentration 0.6wt.% solution, wherein the volume ratio of n-dodecane to chlorobenzene is 1:2.5.

[0026] The study found that the volume ratio of the two mixed solvents and the concentration of the soluti...

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Abstract

The invention discloses a preparation method for a large-size 6,13-bis(triisopropylsilylethynyl)pentacene (TIPS-PEN) thin crystal. The preparation method is characterized by blending a 6,13-bis(triisopropylsilylethynyl)pentacene solution by simply taking chlorobenzene and n-dodecane as a mixed solvent according to a certain volume ratio, placing the solution in a closed petri dish in the growth process of the thin film for regulating the growth conditions, and growing the organic thin crystal with the size up to millimeters. The organic large-size TIPS-PEN thin crystal prepared by the preparation method has good application potential on the aspect of producing low-cost and high-performance integrated electronic devices.

Description

technical field [0001] The present invention relates to a preparation method of 6,13-bis(triisopropylsilylethynyl)pentacene thin crystals, in particular to large-sized 6,13-bis(triisopropylsilylethynyl)pentacene Preparation method of benzene thin crystals. Background technique [0002] In recent years, organic field-effect transistors (OFETs) based on π-conjugated molecules and polymer semiconductors have great application potential in the field of electronic information due to their large area, low-cost device fabrication, and good flexibility. , arouse extensive research interest. However, there are a large number of grain boundaries and disordered molecular arrangement in the organic polycrystalline thin film usually used in OFET, which greatly limits the charge transport. In the world, the prepared field effect transistor has very excellent performance such as high carrier mobility, which has attracted great attention of researchers. [0003] Among the numerous π-conj...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/54C30B7/06
Inventor 肖宇张发培李峰周国庆
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI