高质量石墨烯粉体的可控生长及其柔性电极应用
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- 英文论文题名：Controlled growth of high-quality graphene flakes by chemical vapor deposition for flexible electrodes
- 论文作者：陈珂 ; 杜祖亮 ; 刘忠范
- 英文论文作者：Ke Chen ; Zuliang Du ; Zhongfan Liu ; Key Laboratory for Special Functional Materials of Ministry of Education ; Henan University ; Center for Nanochemistry (CNC) ; Beijing National Laboratory for Molecular Sciences ; College of Chemistry and Molecular Engineering ; Peking University
- 年：2016
- 作者机构：河南大学特种功能材料教育部重点实验室;北京大学化学与分子工程学院纳米化学研究中心;
- 论文关键词：石墨烯 ; 粉体 ; 高质量 ; 化学气相沉积 ; 柔性电极
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第四十一分会：纳米材料与器件
- 语种：中文
- 分类号：O613.71;O646
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第四十一分会 ; 纳米材料与器件
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：143k
- 原文格式：D
- 会议级别：全国
摘要
高质量石墨烯的规模化制备是石墨烯材料及应用领域普遍关注的问题~[1]。传统的氧化还原法所制备的石墨烯粉体虽然具有低成本、大批量等优势,但存在结晶度差、尺寸和层数难以控制等问题~[2]。本研究基于石墨烯化学气相沉积生长原理,提出了一种利用氧化物材料宏量制备高结晶度、层数可控和表面无含氧基团的石墨烯粉体的方法,所获石墨烯材料复制了基底材料的微观三维结构,具有高结晶度、层数可控、易分散等特点,且原材料取材广泛。结合石墨烯液相分散方法,实现了大面积石墨烯透明导电薄膜的制备,导电性优于相同透过率下还原氧化法制备的石墨烯薄膜。该工作立足于解决石墨烯制备领域高产量与高质量之间的矛盾和关键技术难题,为开发石墨烯透明导电薄膜、柔性印刷电子器件和光电功能复合材料开辟途径。
Mass production of high-quality graphene has attracted intense interest in the fields of graphene and its applications. Graphene microsheets have been produced on an industrial scale by chemical reduction of graphene oxide, however, their crystallinity and layer-thickness controllability are not sufficient good to fulfill some requirements of advanced technologies. Herein, we report a direct CVD growth of graphene flakes on oxide substrates and demonstrate applications of graphene flexible electrodes fabricated by solution processes. The graphene flakes possess the locally curved structures, high crystallinity, controllable layer thickness and good dispersion. Furthermore, the graphene flakes were prepared to graphene ink for applications of large-area transparent and printing electrodes, the conductivity of which outperformed to that of the RGO counterparts. More importantly, the proposed strategy are expected to realize the balance between high quality and large quantity of graphene, which paves the way for exploiting graphene transparent electrodes, flexible printing devices and optoelectronic functional composites.
Mass production of high-quality graphene has attracted intense interest in the fields of graphene and its applications. Graphene microsheets have been produced on an industrial scale by chemical reduction of graphene oxide, however, their crystallinity and layer-thickness controllability are not sufficient good to fulfill some requirements of advanced technologies. Herein, we report a direct CVD growth of graphene flakes on oxide substrates and demonstrate applications of graphene flexible electrodes fabricated by solution processes. The graphene flakes possess the locally curved structures, high crystallinity, controllable layer thickness and good dispersion. Furthermore, the graphene flakes were prepared to graphene ink for applications of large-area transparent and printing electrodes, the conductivity of which outperformed to that of the RGO counterparts. More importantly, the proposed strategy are expected to realize the balance between high quality and large quantity of graphene, which paves the way for exploiting graphene transparent electrodes, flexible printing devices and optoelectronic functional composites.
引文
[1]Chen,K.;Chai,Z.;Li,C.;Shi,L.;Liu,M.;Xie,Q.;Zhang,Y.;Xu,D.;Manivannan,A.;Liu,Z.ACS Nano2016,10(3):3665.
[2]Chen,K.;Li,C.;Chen,Z.;Shi,L.;Reddy,S.;Meng,H.;Ji,Q.;Zhang,Y.;Liu,Z.Nano Res.,2016,9(1):249.
[2]Chen,K.;Li,C.;Chen,Z.;Shi,L.;Reddy,S.;Meng,H.;Ji,Q.;Zhang,Y.;Liu,Z.Nano Res.,2016,9(1):249.