Fabrication and Characterization of Hybrid system of Graphene and PMN-PT
The hybrid system of graphene and PMN-PT was fabricated and the effects of tunable strain on the transport properties and Raman spectra of the graphene were investigated.The graphene on PMN-PT substrate exhibited p-type characteristics in air ambient at room temperature and revealed a large memory window.Detailed analysis by X-ray diffraction (XRD) technique and Raman spectroscopy indicated that the blue shifts of graphene 2D band mainly result from biaxial strain induced by the PMN-PT substrate.The calculations based on the shift of 2D band showed that small percentage of biaxial strain could be delivered from the PMN-PT to the graphene layer, and subsequently, a continuous Raman 2D band shift could be detected.
graphene biaxial strain PMN-PT Raman spectroscopy
Wenjing Jie Jianhua Hao
Department of Applied Physics and Materials Research Center,The Hong Kong Polytechnic University,Hung Horn,Kowloon,Hong Kong
国内会议
成都
英文
182-187
2013-11-15（万方平台首次上网日期，不代表论文的发表时间）