Author/Authors :
Benayad، نويسنده , , Anass and Shin، نويسنده , , Hyeon-Jin and Park، نويسنده , , Hyeon Ki and Yoon، نويسنده , , Seon Mi and Kim، نويسنده , , Ki Kang and Jin، نويسنده , , Mei Hua and Jeong، نويسنده , , Hae-Kyung and Lee، نويسنده , , Jae Cheol and Choi، نويسنده , , Jae-Young and Lee، نويسنده , , Young Hee، نويسنده ,
Abstract :
We have investigated the effect of Au-ion treatment on the work function and the electronic structure change of reduced graphite oxides (RGOs). Au-ions were reduced spontaneously by extracting electrons (i) from sp2 carbons of RGO at low concentration and (ii) from some oxygen-related functional groups at high concentration. This implies that the work function was modulated by the amount of charges transferred to Au-ions. The sheet resistance of the RGO film was improved with Au-ion treatment. This was explained in terms of electron donation to Au-ions that eventually led to a p-type doping in RGO film.
