紫外发光增强的石墨烯-氧化锌纳米复合物

吴春霞; 张双鸽; 何自娟; 刘栋; 李金榜; 张海君

doi:10.3788/fgxb20143506.0701

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紫外发光增强的石墨烯-氧化锌纳米复合物

材料合成及性能 | 更新时间：2020-08-12

- 紫外发光增强的石墨烯-氧化锌纳米复合物
- Enhanced Ultraviolet Photoluminescence of Graphene-ZnO Nanocomposites
- 发光学报 2014年35卷第6期页码：701-705
- 作者机构：
  
  1. 江苏大学江苏省重点实验室光子制造科学与技术中心,江苏镇江,212013
  2. 东南大学生物电子学国家重点实验室,江苏南京,210096
- 作者简介：
- 基金信息：
  
  国家自然科学基金（11304127）();东南大学生物电子学国家重点实验室开放课题（1721220150）();江苏大学高级人才专项（1283000262）资助项目()
- DOI：10.3788/fgxb20143506.0701
  中图分类号： TB332;O482.31
- 收稿日期：2014-03-18，
  
  修回日期：2014-04-15，
  
  网络出版日期：2014-04-30，
  
  纸质出版日期：2014-06-03
- 稿件说明：
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吴春霞, 张双鸽, 何自娟等. 紫外发光增强的石墨烯-氧化锌纳米复合物[J]. 发光学报, 2014,35(6): 701-705

WU Chun-xia, ZHANG Shuang-ge, HE Zi-juan etc. Enhanced Ultraviolet Photoluminescence of Graphene-ZnO Nanocomposites[J]. Chinese Journal of Luminescence, 2014,35(6): 701-705
吴春霞, 张双鸽, 何自娟等. 紫外发光增强的石墨烯-氧化锌纳米复合物[J]. 发光学报, 2014,35(6): 701-705 DOI： 10.3788/fgxb20143506.0701.

WU Chun-xia, ZHANG Shuang-ge, HE Zi-juan etc. Enhanced Ultraviolet Photoluminescence of Graphene-ZnO Nanocomposites[J]. Chinese Journal of Luminescence, 2014,35(6): 701-705 DOI： 10.3788/fgxb20143506.0701.

摘要

采用溶剂热法在相同条件下分别制备了纯ZnO和石墨烯-氧化锌纳米复合物，通过SEM、TEM、拉曼和红外光谱等手段，对纳米复合物样品进行了形貌和结构表征。实验结果显示ZnO纳米颗粒成功地分散在少层石墨烯上。通过对比纯ZnO与复合物的形貌和光致发光谱，发现在没有石墨烯时，ZnO能够择优取向生长成六方棱柱，紫外发光峰弱且宽；在有石墨烯时，ZnO聚集成表面不规则的球形颗粒，紫外发光峰强且窄。上述结果表明ZnO形貌的变化和石墨烯的等离子体效应共同影响了ZnO的紫外发光，但石墨烯的表面等离子体效应起主导作用。

Abstract

Graphene-ZnO nanocomposites and pure ZnO samples were prepared by solvothermal method under the same conditions. The morphology and structure of nanocomposites were characterized by SEM

TEM

Raman and infrared spectroscopy. The results show that ZnO nanoparticles have dispersed on a few layers graphene. Compared with the morphology of graphene-ZnO nanocomposites

it is found that pure ZnO can grow into a preferred orientation of hexagonal structure

while ZnO aggregates into sphere in the presence of graphene which is attributed to the graphene hindered the preferred orientation of ZnO growth. From the PL spectra

the ultraviolet emission peak intensity of graphene-ZnO is stronger than that of pure ZnO

and accompanied by blue shift phenomenon. The difference of ultraviolet photoluminescence between ZnO and graphene-ZnO comes from the difference of morphology and the plasma effect of grapheme

while the plasma effect of graphene plays a key role.

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references

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