Growth method for large-size information storage monocrystals

An information storage and growth method technology, which is applied in the field of manufacturing new large-size information storage single crystals, can solve problems such as difficulty in growing large-size single crystals, and achieves cheap, easy-to-obtain, pollution-free raw materials, easy constant temperature operation, and good temperature stability. Effect

Active Publication Date: 2016-08-17
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to grow large-sized single crystals

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0047] Take 500g of diisopropylamine hydrochloride raw material and put it into a 1L ordinary glass bottle, then pour into 600mL of absolute ethanol as a solvent. Adjust the power of the constant temperature tank to 1.5kw and set the temperature to 45.0°C, then turn on the temperature control system; cover the latex cover with a 0.5cm diameter hole in the middle and put a 40cm long polytetrafluoro stirring rod; will grow Put an electric polytetrafluoro stirring rod into the bottle, and stir at 35 rpm to accelerate the dissolution until fully saturated. Prepare a 10cm Buchner funnel, a 1L suction filter flask and a 1L glass bottle in advance, and heat them to 50.0°C. After 1 day, rapidly hot filter the solution with some undissolved raw materials to obtain a saturated hot solution at 45.0°C, and quickly transfer it into another clean 1L glass bottle that has been preheated in advance. Prepare the lid of the silicone oil liquid seal. After the liquid seal is covered, put it in ...

example 2

[0051] Weigh 400g of diisopropylamine hydrochloride raw material and add it to a 2L ordinary glass bottle. At the same time, add the mother liquor waste liquid of the above-mentioned Example 1 to the glass bottle, and then pour 500mL of absolute ethanol as a solvent. Adjust the power of the constant temperature tank to 2.5kw and set the temperature to 50.0°C, then turn on the constant temperature circulation system; cover the latex cover with a 0.5cm diameter hole in the middle and put a 50cm long polytetrafluoro stirring rod; will grow Put an electric polytetrafluoro stirring rod into the bottle, and stir at 40 rpm to accelerate the dissolution until fully saturated. Prepare a 20cm Buchner funnel, a 2L suction filter flask and a 2L glass bottle in advance, and heat them to 55.0°C. After 1 day, rapidly hot filter the solution with some undissolved raw materials to obtain a saturated hot solution at 50.0°C, and quickly transfer it into another clean 2L glass bottle that has bee...

example 3

[0055] Take 300g of diisopropylamine hydrochloride raw material and put it into a 1L ordinary glass bottle, and then pour 500mL of absolute ethanol as a solvent. Adjust the power of the constant temperature tank to 0.8kw and set the temperature to 40.0°C, then turn on the constant temperature circulation system; cover the latex cover with a 0.5cm diameter hole in the middle and put a 40cm long polytetrafluoro stirring rod; the growth Put an electric polytetrafluoro stirring rod into the bottle, and stir at 30 rpm to accelerate the dissolution until fully saturated. Prepare a 10cm Buchner funnel, a 1L suction filter flask and a 1L glass bottle in advance, and heat them to 40.0°C. After 1 day, quickly hot filter the solution with some raw materials that have not been dissolved to obtain a saturated hot solution at 40.0°C, and quickly transfer it to another clean 1L glass bottle that has been preheated in advance. After the liquid is sealed, put it into a thermostat Keep warm fo...

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PUM

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Abstract

The invention relates to a growth method for large-size information storage monocrystals. The growth method is simple, ingenious, energy-saving and environment-friendly, mild conditions with the temperature below 50 DEG C are required only, alcoholic-solution growth is non-toxic, and waste liquid is recycled. During phase transition, the transition of a non-ferroelectric large-size monocrystal I crystal form to a required large-size monocrystal II crystal form can be completed by only maintaining the temperature of 168 DEG C for a few minutes. Meanwhile, the most complicated crystal transition step is avoided, and seed crystals are directly hung in mother liquor, so that the operation is simpler, the equipment is simpler and easier, the cooling rate is higher, and the growth cycle is shortened. The aftertreatment method is improved to be simpler, and crystals are directly drawn out and put into a synthermal constant-temperature oil bath. The quality of the improved crystals is not affected.

Description

technical field [0001] The invention relates to a manufacturing technology of a novel large-size information storage single crystal, in particular to an environment-friendly and energy-saving rapid growth method of a large-size bulk ferroelectric single crystal of diisopropylamine hydrochloride. Background technique [0002] Molecular-based information storage materials are indispensable and important smart materials for information storage, remote sensing, communication, microelectronics, lasers, etc., which are related to national economy and national defense. And because its special molecular structure can integrate multiple physical properties such as light, electricity, magnetism, heat, and force, it has a special application prospect that cannot be replaced by any material, and can meet the rapid development of high integration in the future. special requirements. At present, ferroelectric materials that can be widely used are very limited, and they are mainly inorgan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B7/08
CPCC30B7/08
Inventor 付大伟熊仁根叶琼张毅叶恒云游雨蒙戈加震
Owner SOUTHEAST UNIV
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