蓝光辐照对PET和SiO2基石墨烯导电性能的影响

刘显明; 曹雪颖; 李相迪; 陈伟民

doi:10.3788/OPE.20162413.0162

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蓝光辐照对PET和SiO₂基石墨烯导电性能的影响

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- 蓝光辐照对PET和SiO₂基石墨烯导电性能的影响
- Electrical conductivity of graphene film electrodes on PET and SiO₂ substrate under blue light irradiation
- 光学精密工程 2016年24卷第10s期页码：162-168
- 作者机构：
  
  重庆大学光电工程学院光电技术及系统教育部重点实验室重庆,400044
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目（No.61405019）();重庆市基础与前沿研究计划项目（No.cstc2014jcyjA50023）();中央高校基本科研业务费专项（No
- DOI：10.3788/OPE.20162413.0162
  中图分类号： TN29
- 收稿日期：2016-05-28，
  
  修回日期：2016-06-16，
  
  纸质出版日期：2016-11-14
- 稿件说明：
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刘显明, 曹雪颖, 李相迪等. 蓝光辐照对PET和SiO2基石墨烯导电性能的影响[J]. 光学精密工程, 2016,24(10s): 162-168

LIU Xian-ming, CAO Xue-ying, LI Xiang-di etc. Electrical conductivity of graphene film electrodes on PET and SiO2 substrate under blue light irradiation[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 162-168
刘显明, 曹雪颖, 李相迪等. 蓝光辐照对PET和SiO2基石墨烯导电性能的影响[J]. 光学精密工程, 2016,24(10s): 162-168 DOI： 10.3788/OPE.20162413.0162.

LIU Xian-ming, CAO Xue-ying, LI Xiang-di etc. Electrical conductivity of graphene film electrodes on PET and SiO2 substrate under blue light irradiation[J]. Editorial Office of Optics and Precision Engineering, 2016,24(10s): 162-168 DOI： 10.3788/OPE.20162413.0162.

摘要

石墨烯透明电极在光照下可能会产生电学性能变化，对于LED背光源，蓝光成分比重较大。为了研究石墨烯在蓝光辐照下的电学性能，以不同基底的石墨烯电极为样品，包括分别代表柔性和硬质应用的PET和SiO

基石墨烯，介绍了这两种基底的石墨烯透明电极在不同功率蓝光辐照下，在不同环境气氛中的导电性能变化，并分析了掺杂对石墨烯导电稳定性的影响。实验结果表明：不同基底石墨烯样品的导电性能在蓝光辐照下均会发生变化，其变化程度和速度受光照时间、环境气氛、掺杂和辐照功率的共同影响。SiO

基、PET基在9 mW光源的长期照射下，未掺杂真空环境辐射10 h时相对电阻的变化分别为29.5%和10.1%，掺杂后降至13.0%和4.6%，大气环境中降至7.1%和2.7%。可见气体分子和AuCl

掺杂剂的吸附作用会减小电导变化，提高石墨烯的电阻稳定性。该研究结果可为改善石墨烯透明电极长期应用的稳定性提供参考。

Abstract

Light irradiation could result in the decline of electric property of transparent graphene electrodes

which was dominated by blue light for LED backlight. In order to study the stability of the electric properties under blue light irradiation

graphene electrodes with different substrates were taken as the samples

including the flexible PET-based and inflexible SiO

-based graphenes. Then the conductivity of the graphenes under blue light irradiation of different powers and different environmental atmospheres were investigated

and the impact of doping on the conductivity stability was analyzed. The results indicate that the conductivity of graphene with different substrates

changes in blue light

with the amplitude and speed of the variation subjected to the irradiation time

environmental atmosphere

doping and irradiation power. Under the 10 h long-term irradiation

the relative resistances of the PET-based and SiO

-based graphenes without dopants in vacuum decrease by 29.5% and 10.1% respectively. After doping

those values drop to 13.0% and 4.6% respectively in the same environment while decline to 7.1% and 2.7% respectively in the ambient environment. The absorption of gas molecules and AuCl

dopant can reduce such conductivity change and improve the resistance stability of graphene. The research provides significance reference for the stability enhancement of the long-term application of transparent graphene electrodes.

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