Versatile and scalable micropatterns on graphene oxide films based on laser induced fluorescence quenching effect.
Versatile and scalable micropatterns on graphene oxide films based on laser induced fluorescence quenching effect.
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DOI：
10.1364/oe.25.031025
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发表时间：
2017-12
期刊：
影响因子：
3.8
通讯作者：
Zhixing Qiao;Chengbing Qin;Wenjun He;Yani Gong;Guofeng Zhang;Ruiyun Chen;Yan Gao;Liantuan Xiao;Suotang Jia
中科院分区：
文献类型：
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作者：
Zhixing Qiao;Chengbing Qin;Wenjun He;Yani Gong;Guofeng Zhang;Ruiyun Chen;Yan Gao;Liantuan Xiao;Suotang Jia
在这里，我们报告了通过激光诱导荧光猝灭效应改变局部光学性质，制备了氧化石墨烯（GO）薄膜的准均质荧光发射，以及在准均质GO薄膜上制造单层和多层微图案。这种修饰源于GO的光还原，通过改变激光功率和照射时间可以精确调节还原程度和荧光强度。这种具有无掩模功能的多功能方法可以很容易地用于在准均质GO薄膜上制造各种复杂的微结构，从垂直尺度上的单层到多层，以及横向尺度上的微米到厘米。具有不同光学特性的微图案在信息存储、显示技术和光电器件方面具有广阔的应用前景。
Here we report on the preparation of quasi-homogeneous fluorescence emission from graphene oxide (GO) film by modifying the local optical properties through the laser-induced fluorescence quenching effect, and the fabrication of single and multilayer micropatterns on quasi-homogeneous GO films. The modification is stemming from the photoreduction of GO, where the reduction degree and fluorescence intensity can be precisely tuned by changing the laser power and irradiation duration. This versatile approach with a mask-free feature can be readily used to fabricate various complex microstructures on quasi-homogeneous GO film from single layer to multilayer in vertical scale, as well as micrometers to centimeters in lateral scale. The micropatterns with varied optical properties are promising for applications in information storage, display technology, and optoelectronic devices.