Patterned preparation method of two-dimensional molecular crystals based on double scraper technology

A molecular crystal and patterning technology, used in microstructure technology, semiconductor/solid-state device manufacturing, processes for producing decorative surface effects, etc. effect of crystal characteristics

Active Publication Date: 2022-04-22
SUZHOU UNIV
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Problems solved by technology

However, the above-mentioned preparation method requires an additional transfer process to realize the crystal preparation on the target substrate, and the crystal is easily polluted and damaged during the transfer process, which affects the device performance of the crystal.

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  • Patterned preparation method of two-dimensional molecular crystals based on double scraper technology
  • Patterned preparation method of two-dimensional molecular crystals based on double scraper technology
  • Patterned preparation method of two-dimensional molecular crystals based on double scraper technology

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Embodiment Construction

[0046] see figure 1 , the patterned preparation method of the two-dimensional molecular crystal based on double scraper technology of the present invention, comprises the following steps:

[0047] S1. Provide a silicon monoxide wafer as a substrate, and arrange a hydrophobic insulating layer on the substrate, so as to obtain a patterned substrate with a hydrophilic and hydrophobic distribution on the hydrophobic insulating layer;

[0048] S2. Provide two silicon oxide sheets as double scrapers, and recombine the double scrapers; one of the scrapers is hydrophobically modified to form a hydrophobic scraper, and the other is hydrophilically modified to form a hydrophilic scraper;

[0049] S3. Prepare the small molecule solution and the PS solution respectively, and mix and stir the prepared small molecule solution and the PS solution evenly to form a mixed solution;

[0050] S4. Using the double scraper technique, injecting deionized water and the mixed solution into the hydrop...

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Abstract

The invention provides a patterned preparation method of a two-dimensional molecular crystal based on double scraper technology, comprising the following steps: providing a silicon monoxide sheet as a substrate, and setting a hydrophobic insulating layer on the substrate to obtain a patterned crystal with a hydrophilic and hydrophobic distribution Substrate; provide two silicon oxide sheets as a double scraper, and carry out the recombination of the double scraper; one of the scrapers is modified to form a hydrophobic scraper, and the other scraper is modified to form a hydrophilic scraper; respectively Configure small molecule solution and PS solution, and mix and stir the configured small molecule solution and PS solution evenly to form a mixed solution; using double scraper technology, inject deionized water and mixed solution into hydrophilic scraper and hydrophobic scraper respectively, And carry out blade coating to prepare two-dimensional molecular crystals on the patterned substrate. The two-dimensional molecular crystal prepared by the invention exhibits better single-crystal characteristics and atomic-level smoothness, and does not need crystal transfer process.

Description

technical field [0001] The invention relates to the technical field of preparation of organic semiconductor thin films, in particular to a patterned preparation method of two-dimensional molecular crystals based on double scraper technology. Background technique [0002] At present, two-dimensional molecular crystals in organic semiconductor thin films are widely used in organic field effect transistors to improve the performance of devices. [0003] In the existing preparation methods of two-dimensional molecular crystals, the patterned preparation of two-dimensional molecular crystals can be realized by using screen printing technology. However, in this method, during a series of etching processes (including wet etching and dry etching), it is easy to cause pollution and damage to the crystal, which affects the device performance of the crystal. [0004] Of course, in the prior art, there is also a method for preparing two-dimensional molecular crystals on the liquid / liqu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/00B81C1/00
CPCB81C1/00349B81C1/00444H10K71/20
Inventor 揭建胜张晓宏邓巍肖彦玲
Owner SUZHOU UNIV
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