N-doped nanocarbon materials and method for manufacturing the same

Active Publication Date: 2017-04-20
KOREA INST OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]The present disclosure is directed to providing a method for producing carbon

Problems solved by technology

However, although carbon quantum dots have high applicability in various industrial fields, their preparation according to the related art includes a complicated process due to purification and separation, requires a lot of time, and provides low yield.
Thus, studies about appl

Method used

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  • N-doped nanocarbon materials and method for manufacturing the same
  • N-doped nanocarbon materials and method for manufacturing the same
  • N-doped nanocarbon materials and method for manufacturing the same

Examples

Experimental program
Comparison scheme
Effect test

Example

Example 1

[0098]First, an aqueous solution containing 200 mg of fumaronitrile dispersed in 50 mL of distilled water is introduced to a 100 mL round-bottom flask and heated in an oil bath equipped with a reflux condenser at 220° C. for 25 minutes to decompose and crystallize fumaronitrile, an organic precursor, in aqueous solution, thereby providing a plurality of carbon quantum dots. Then, a vacuum rotary concentrator is used to remove distilled water completely in the aqueous solution including the carbon quantum dots and the carbon quantum dots are freeze dried at −70° C. to obtain yellow colored carbon quantum dot powder.

Example

Examples 2-4

[0099]Example 1 is repeated, except that THF, butyl aldehyde or benzyl aldehyde is used instead of distilled water, thereby providing carbon quantum dot powder according to each of Examples 2-4.

Example

Example 5

[0100]The carbon quantum dots obtained according to Example 1 are added to an active layer in an amount of 2 wt % based on the total weight of the active layer to provide an active layer. Then, the active layer is used to provide an organic solar cell device having a structure of ITO / PEIE / PTB7:PC71BM (+2 wt % N-CQDs) / MoO3 / Ag.

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Abstract

Provided are nitrogen-doped carbon quantum dots as pyrolysis product of fumaronitrile. The carbon quantum dots may be formed in such a manner that nitrogen may be doped in an amount of 3-10 wt % based on the total weight of the carbon quantum dots with no need for a separate doping process. As a result, the carbon quantum dots have excellent properties, such as optical property, electroconductivity and thermal safety, and thus may be useful for photocatalysts or organic solar cells, or the like.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority to Korean Patent Application No. 10-2015-0146186, filed on Oct. 20, 2015 and Korean Patent Application No. 10-2016-0109301, filed on Aug. 26, 2016, and all the benefits accruing therefrom under 35 U.S.C. §119, the contents of which in its entirety are herein incorporated by reference.BACKGROUND[0002]1. Field[0003]The present disclosure relates to nitrogen-doped carbon quantum dots and a method for producing the same. More particularly, the present disclosure relates to nitrogen-doped carbon quantum dots obtained by using a single process and a method for producing the same.[0004]2. Description of the Related Art[0005]Since a carbon-based material having a soccer ball-like structure, called fullerene, was discovered in 1985, various structures having excellent physical, chemical and electrical properties have been produced and discovered, such structures including graphene, carbon nanotubes, carbon nanocones...

Claims

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Application Information

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IPC IPC(8): H01L51/00C07D471/22H01L31/0352
CPCH01L51/0072H01L31/035218H01L2031/0344H01L51/42C07D471/22Y02E10/549Y02P70/50H10K85/6572H10K30/30
Inventor BAE, SUKANGMOON, BYUNG JOONOH, YE LINSHIN, DONGHEONKIM, SANG JINLEE, SANG HYUNKIM, TAE-WOOKLEE, DONG SUPARK, MIN
Owner KOREA INST OF SCI & TECH
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