Preparation of Blue Light-emitting Graphene Quantum Dots from Carbon Nanotube and Application in Nonvolatile Polymer Memory Devices

KOU Li-jie; LI Fu-shan; GUO Tai-liang

doi:10.3788/fgxb20143505.0618

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Preparation of Blue Light-emitting Graphene Quantum Dots from Carbon Nanotube and Application in Nonvolatile Polymer Memory Devices

更新时间：2020-08-12

- Preparation of Blue Light-emitting Graphene Quantum Dots from Carbon Nanotube and Application in Nonvolatile Polymer Memory Devices
- Chinese Journal of Luminescence Vol. 35, Issue 5, Pages: 618-622(2014)
- 作者机构：
  
  福州大学光电显示技术研究所,福建福州,350002
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143505.0618
  CLC： O472+.4
- Received：25 October 2013，
  
  Revised：07 January 2014，
  
  Published Online：07 March 2014，
  
  Published：03 May 2014
- 稿件说明：
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寇丽杰, 李福山, 郭太良. 碳纳米管制备蓝光石墨烯量子点及其在柔性有机存储器上的应用[J]. 发光学报, 2014,35(5): 618-622

KOU Li-jie, LI Fu-shan, GUO Tai-liang. Preparation of Blue Light-emitting Graphene Quantum Dots from Carbon Nanotube and Application in Nonvolatile Polymer Memory Devices[J]. Chinese Journal of Luminescence, 2014,35(5): 618-622
寇丽杰, 李福山, 郭太良. 碳纳米管制备蓝光石墨烯量子点及其在柔性有机存储器上的应用[J]. 发光学报, 2014,35(5): 618-622 DOI： 10.3788/fgxb20143505.0618.

KOU Li-jie, LI Fu-shan, GUO Tai-liang. Preparation of Blue Light-emitting Graphene Quantum Dots from Carbon Nanotube and Application in Nonvolatile Polymer Memory Devices[J]. Chinese Journal of Luminescence, 2014,35(5): 618-622 DOI： 10.3788/fgxb20143505.0618.

摘要

通过化学裁剪法打开碳纳米管获得了粒径一致、性能稳定、具有蓝色荧光的石墨烯量子点。该方法属于化学溶液法，具有成本低廉、工艺简单、条件易控等优势。将该样品与半导体聚合物按一定比例混溶，通过旋涂技术形成基于石墨烯量子点掺杂的聚合物复合薄膜，进而制成柔性存储器。该柔性可弯曲存储器具有低驱动电压、接近10

的ON/OFF 比率、较好的循环次数，较好的重复性和稳定性。该研究结果为柔性有机存储器领域的研究展开了新的方向。

Abstract

We presented a facile method to prepare uniform size and stable property graphene quantum dots (GQDs) from chemical cutting the double-walled carbon nanotube with blue light emission in a chlorobenzene solution. The double-walled carbon nanotube was firstly cut into graphene nano sheets (GNSs) in acidic in the condition of heating and stirring

then chlorobenzene was used to separate GQDs from GNSs in water. The chlorobenzene solvent enabled the preparation of GQD-PVK hybrid nanocomposite. Nonvolatile rewritable memory effect was observed for the GQD-based nanocomposite

suggesting the promising applications of GQDs in data storage. Moreover

due to the easy solution process

we demonstrated the design and realization of flexible GQD-based memory device. The memory has performance as follow: low driving-voltage

high ON/OFF ratio

high cycles

high repeatability and stability. This work may expand the application of GQDs to the portable electronic devices.

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Keywords

references

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