氧化石墨烯的光学性能研究  

Study on optical properties of graphene oxide

作　　者：邢如珍 蒋旭 XING Ruzhen;JIANG Xu(Jiangsu XFNANO Materials Tech Co.,Ltd,Nanjing 210000,China)

机构地区：[1]江苏先丰纳米材料科技有限公司,江苏南京210000

出　　处：《粉末冶金工业》2022年第1期45-49,共5页Powder Metallurgy Industry

摘　　要：本文主要研究了浓度和激发波长对单层氧化石墨烯水分散液光学性能的影响,结果表明:较高浓度的样品在360~500 nm之间有一个宽泛的吸收峰,360 nm处有尖锐的吸收峰。低浓度的样品在230和300 nm处有吸收峰。在365 nm波长的激发下,随着浓度的降低,发射峰位置由560~600 nm变成了蓝光发射。0.4 mg/ml的样品的发射峰位置受激发波长影响不大,但发射强度变化明显,且发射峰很宽泛。浓度为0.02 mg/ml的样品发射峰位置强烈依赖于激发波波长,利用这个性能,氧化石墨烯在可调谐光电领域会有很大应用潜力。The optical properties of single layer graphene oxide(GO) aqueous dispersion were studied in this paper.The relations of concentration and excitation wavelength to optical spectra were discussed.The results show that there is a wide absorption peak in the range of 360-500 nm and a sharp absorption peak centered at 360 nm for the higher concentration samples,and there have absorption peaks at 230 nm and 300 nm for the lower concentration samples.Under 365 nm excitation,the emission peak position changes from 560-600 nm to blue emission with the concentration decrease.For 0.4 mg/ml sample,the emission peak position is not affected by the excitation wavelength obviously,but the emission intensity changes obviously and the emission peak is very broad.For0.02 mg/ml sample,emission peak is fairly sensitive to excitation wavelength,for this,graphene oxide will be of great potential applications in tunable photoelectric areas.

关 键 词：氧化石墨烯 水分散液 吸收光谱 发射光谱 

分 类 号：TQ127.11[化学工程—无机化工]