Title :
Observation of rapid carrier relaxation in graphene oxide probed by ultrafast terahertz spectroscopy
Author :
Jaeseok Kim ; Juyeong Oh ; Chihun In ; Yun-Shik Lee ; Norris, Theodore B. ; Seong Chan Jun ; Hyunyong Choi
Author_Institution :
Sch. of Electr. & Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
We investigate the carrier relaxation dynamics in graphene oxide (GO) using ultrafast optical-pump terahertz-probe spectroscopy. Unlike graphene, we observe the dynamics of GO show rapid percolation behaviors related to the multi-particle Auger scattering.
Keywords :
Auger effect; carrier relaxation time; graphene; high-speed optical techniques; optical materials; optical pumping; percolation; terahertz spectroscopy; CO; GO dynamics; carrier relaxation dynamics; graphene oxide; multiparticle Auger scattering; rapid carrier relaxation; rapid percolation behaviors; ultrafast optical-pump terahertz-probe spectroscopy; Annealing; Conductivity; Educational institutions; Graphene; Optical scattering; Radiative recombination; Spectroscopy;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2014 Conference on
Conference_Location :
San Jose, CA
