We report on current-induced thermal power investigation of graphene nanostructure for potential local-heating ap-plications.It is found that the efficiency of heating can be greatly improved if graphene is patterned ...We report on current-induced thermal power investigation of graphene nanostructure for potential local-heating ap-plications.It is found that the efficiency of heating can be greatly improved if graphene is patterned into structures with narrow width and long channel.In a narrow graphene-ribbon,the Joule heating power exhibits an obvious dependence on the back-gate voltage.By monitoring Raman spectra,the temperature of graphene-ribbon can be determined.The temperature of graphene-ribbon is modulated by the electric field effect when the sample is sourced with a relatively high current.展开更多
基金Project supported by the National Key R&D Program of China(Grant No.2017YFF0206106)the Chinese Academy of Sciences(Grant No.XDB04040300)+1 种基金the National Natural Science Foundation of China(Grant No.51772317)the Science and Technology Commission of Shanghai Municipality,China(Grant No.16ZR1442700)
文摘We report on current-induced thermal power investigation of graphene nanostructure for potential local-heating ap-plications.It is found that the efficiency of heating can be greatly improved if graphene is patterned into structures with narrow width and long channel.In a narrow graphene-ribbon,the Joule heating power exhibits an obvious dependence on the back-gate voltage.By monitoring Raman spectra,the temperature of graphene-ribbon can be determined.The temperature of graphene-ribbon is modulated by the electric field effect when the sample is sourced with a relatively high current.
