摘要
采用交叉偶联反应制备出石墨炔。微结构结果表明,所制样品含有诸多富氧官能团,O/C原子比约为0. 174 1,厚度约为1μm。研究了石墨炔样品的光致发光特性,发现石墨炔在397 nm处显示出强的紫外(UV)光致发光,并且在280 nm处具有光吸收。其发光是因石墨炔中富氧官能团诱导电荷转移所致。石墨炔作为新型的人工合成碳同素异形体,将在光致发光方面具有潜在的应用。
Graphdiyne was prepared by a cross coupling reaction and characterized by SEM,TEM,XRD,Raman spectroscopy and XPS.Its photoluminescence(PL)properties were investigated.It was found that the graphdiyne has a thickness of ca.1μm,a O/C atomic ratio of ca.0.174 1 and many oxygen-containing functional groups.It exhibits strong ultraviolet(UV)PL at 397 nm and optical absorption at ca.280 nm.It is proposed that the oxygen-containing functional groups in the graphdiyne induce charge transfer,leading to the PL properties.As a new kind of artificially synthesized carbon allotrope,graphdiyne with UV PL have many applications.
作者
郑勇平
冯倩
汤怒江
都有为
ZHENG Yong-ping;FENG Qian;TANG Nu-jiang;DU You-wei(Fujian Provincial Key Laboratory of Quantum Manipulation&New Energy Materials,Fujian Normal University,Fuzhou350117,China;National Laboratory of Solid State Microstructures&Jiangsu Provincial Key Laboratory for Nanotechnology,Nanjing University,Nanjing210093,China)
出处
《新型炭材料》
SCIE
EI
CAS
CSCD
北大核心
2018年第6期516-521,共6页
New Carbon Materials
基金
State Key Program for Basic Research(2014CB921102)
National Natural Science Foundation of China(51572122)
Natural Science Foundation of Fujian Province(2016J01291,2017J01476)~~
关键词
石墨炔
光致发光
交叉偶联反应
Cross coupling reaction
Graphdiyne
Photoluminescence
