A method for rapid preparation of organic small molecule nanorods
A nanorod and small molecule technology, applied in the coating and other directions, can solve the problems of organic nanowire restriction, low growth efficiency, long period, etc., and achieve the effect of high-efficiency nanowires and high-efficiency growth.
Active Publication Date: 2021-05-14
THE CHINESE UNIV OF HONG KONG SHENZHEN
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Problems solved by technology
[0004] However, the growth method of organic nanowires is extremely difficult. Usually, mask technology and chemical vapor deposition are used together. The disadvantages of low growth efficiency and long cycle limit the application of organic nanowires to a certain extent.
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Embodiment 1
[0036] First, the ITO glass substrate is placed on the HPB (tris[4-(pentaphenylphenyl)phenyl]amine) material (its molecular formula and mass spectrum are shown in figure 1 5cm directly above the crucible, pump out the gas in the airtight chamber to make the chamber reach a vacuum state (10 -4 Pascal); then heated the crucible containing the HPB material to stabilize its temperature at 500°C after 10 minutes, then rapidly heated the crucible to 800°C within 50 seconds, and maintained it at 800°C for 30 seconds. Cool the crucible inside to 500°C; then cool the crucible to room temperature for 10 minutes; then inflate it into a closed cavity to restore its air pressure to atmospheric pressure; finally take out the ITO glass substrate and put it in absolute ethanol for half an hour and then ultrasonically clean it. The final ethanol solution is spin-coated (a homogenizer can be used) on a new ITO glass substrate, and the substrate is heated to 80°C. After 1 minute, organic nanorod...
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Abstract
The invention discloses a method for rapidly preparing organic small molecule nanorods. The specific steps are as follows: placing an ITO glass substrate directly above a crucible containing HPB material, extracting gas from a cavity to reach a vacuum state; heating the crucible containing HPB material Make it warm up to the first temperature point; then quickly heat the crucible to make it heat up from the first temperature point to the second temperature point within 50 seconds; then quickly cool down the crucible to cool it from the second temperature point to the first temperature point within 2 minutes temperature point, then lower the temperature of the crucible to cool it down from the first temperature point to room temperature within 10 minutes; fill the cavity with air to return its air pressure to atmospheric pressure; take out the ITO glass substrate and put it in absolute ethanol for a period of time , spin-coat on any substrate, heat the substrate to 80° C., and obtain organic nanorods of HPB material after 1 minute. The invention adopts the vacuum thermal evaporation method to grow the organic material HPB on the ITO glass substrate, then conducts ultrasonic treatment, and finally obtains the organic nano-rods of micron size.
Description
technical field [0001] The invention relates to a method for quickly preparing small organic molecule nanorods, which belongs to the field of organic semiconductor optoelectronic technology. Background technique [0002] With the rapid development of the field of optical information, miniaturized and integrated optoelectronic devices are the goal pursued by people. Therefore, in recent years, the research of organic nanoscale optoelectronic devices has made great progress. This type of device usually has the advantages of small size, compatibility with flexible substrates, low power consumption, and easy integration, and has great application prospects in the fields of photodetectors, lithium batteries, and light-emitting devices. Organic nanowires play a very important role in the above applications. [0003] At present, the growth method of nanowires based on self-assembled organic material systems is the focus of research in this field. It has important research value ...
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IPC IPC(8): C03C17/28
CPCC03C17/28C03C2218/116C03C2218/151
Inventor 黎小蒙张昭宇王湘麟范开泉方铉
Owner THE CHINESE UNIV OF HONG KONG SHENZHEN