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Preparation method of porous silicon and cuprous thiocyanate compounded optical material

A technology of cuprous thiocyanate and optical materials, which is applied in the direction of luminescent materials, chemical instruments and methods, etc., can solve the problems of limited application and low luminous intensity of porous silicon, and achieve the effects of improving luminous intensity, convenient operation, and simple steps

Active Publication Date: 2022-04-12
ANHUI SCI & TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The optical and electrical properties of porous silicon have opened up a new path for the integration and development of all-silicon-based optoelectronics, but the luminous intensity of porous silicon has not been high, which limits its application in many fields

Method used

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  • Preparation method of porous silicon and cuprous thiocyanate compounded optical material
  • Preparation method of porous silicon and cuprous thiocyanate compounded optical material
  • Preparation method of porous silicon and cuprous thiocyanate compounded optical material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Draw 7ml of ethanol with a pipette and dissolve (1mmol) 0.0972g KSCN in a beaker, add (2mmol) 0.3523g ascorbic acid and add 7ml distilled water, shake and dissolve with a magnetic cleaner, then transfer to a round bottom flask. Weigh (1mmol) 0.2417 grams of Cu(NO 3 ) 2 ·3H 2 O was added to 7ml of ethanol, and dissolved by shaking with a magnetic cleaner; weighed (1 mmol) 0.0281 g of porous silicon. With prepared Cu(NO 3 ) 2 ·3H 2 O ethanol solution was added dropwise into the round-bottomed flask with a dropper to produce a white complex precipitate, which was mixed with porous silicon after the reaction was complete. Place the round-bottomed flask in a magnetic stirrer, stir at 60°C at a speed of 10100r / min for 24h, take it out after 24h and let it stand for 1min, perform centrifugation, and place the obtained solid-phase substance in a blast dryer at 90°C Dry at -100°C for 1 hour to obtain the dry target product 1 (composite between cuprous thiocyanate and porou...

Embodiment 2

[0030] Draw 7ml of ethanol with a pipette and dissolve (1mmol) 0.0972g KSCN in a beaker, add (2mmol) 0.3523g ascorbic acid and add 7ml distilled water, shake and dissolve with a magnetic cleaner, then transfer to a round bottom flask. Weigh (1mmol) 0.2417 grams of Cu(NO 3 ) 2 ·3H 2 O was added to 7ml of ethanol, and dissolved by shaking with a magnetic cleaner; weighed (1.1mmol) 0.0310g of porous silicon. With prepared Cu(NO 3 ) 2 ·3H 2 O ethanol solution was added dropwise into the round-bottomed flask with a dropper to produce a white complex precipitate, which was mixed with porous silicon after the reaction was complete. Place the round-bottomed flask in a magnetic stirrer, stir at 60°C at a speed of 10100r / min for 24h, take it out after 24h and let it stand for 1min, perform centrifugation, and place the obtained solid-phase substance in a blast dryer at 90°C Dry at -100°C for 1 hour to obtain the dry target product 2 (composite between cuprous thiocyanate and porou...

Embodiment 3

[0032] Draw 7ml of ethanol with a pipette and dissolve (2mmol) 0.1944g of KSCN in a beaker, add (4mmol) 0.7046g of ascorbic acid and add 7ml of distilled water, shake and dissolve with a magnetic cleaner, then transfer to a round bottom flask. Weigh (2mmol) 0.4832 g Cu(NO 3 ) 2 ·3H 2 O was added to 7ml of ethanol, and dissolved by shaking with a magnetic cleaner; weighed (1 mmol) 0.0281 g of porous silicon. With prepared Cu(NO 3 ) 2 ·3H 2 O ethanol solution was added dropwise into the round-bottomed flask with a dropper to produce a white complex precipitate, which was mixed with porous silicon after the reaction was complete. Place the round-bottomed flask in a magnetic stirrer, stir at 60°C at a speed of 10100r / min for 24h, take it out after 24h and let it stand for 1min, perform centrifugation, and place the obtained solid-phase substance in a blast dryer at 90°C Dry at -100°C for 1 hour to obtain the dry target product 3 (composite between cuprous thiocyanate and por...

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Abstract

A preparation method of a porous silicon and cuprous thiocyanate compounded optical material comprises the following steps: (1) adding absolute ethyl alcohol into KSCN, shaking and dissolving, then adding ascorbic acid and distilled water, and shaking and dissolving for later use; (2) adding absolute ethyl alcohol into Cu (NO3) 2.3 H2O, and shaking and dissolving to obtain a Cu (NO3) 2.3 H2O ethanol solution; (3) dropwise adding a Cu (NO3) 2.3 H2O ethanol solution into the liquid obtained in the step (1) to generate a white complex precipitate, adding porous silicon after the reaction is finished, and mixing to obtain a mixture, and (4) stirring the obtained mixture for 24 hours, taking out, standing for 1 minute, performing centrifugal separation, and drying the obtained solid-phase substance in a blast dryer to obtain a dried target product. According to the method, cuprous thiocyanate with fluorescence and porous silicon are compounded, so that the luminous intensity of the material is improved, and the preparation method is simple in step and convenient to operate.

Description

technical field [0001] The invention relates to a method for preparing an optical material composed of porous silicon and cuprous thiocyanate. Background technique [0002] Porous silicon (porous Si) is a new type of one-dimensional nano-photonic crystal material, which has a "quantum sponge" microstructure with nano-silicon clusters as the skeleton. Porous silicon has good electroluminescent properties. Electrons and holes can be generated, and these carriers can recombine and emit light, move directionally under the action of an electric field, generate electrical signals, and store energy. The optical and electrical properties of porous silicon have opened up a new way for the integration and development of all-silicon-based optoelectronics, but the luminous intensity of porous silicon has not been high, which limits its application in many fields. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/59C09K11/65
Inventor 汪徐春张东兰刁展鹏张雪梅韦正兵姚鑫陈俊明周化光张玉洋姚悦
Owner ANHUI SCI & TECH UNIV