Raman spectroscopy of substrate-induced compression and substrate doping in thermally cycled graphene

Chun-Chung Chen,1,* Wenzhong Bao,3 Chia-Chi Chang,2 Zeng Zhao,3 Chun Ning Lau,3 and Stephen B. Cronin1 1 Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089, USA 2 Department of Physics, University of Southern California, Los Angeles, California 90089, USA 3 Department of Physics and Astronomy, University of California, Riverside, Riverside, California 92521, USA (Received 27 June 2011; revised manuscript received 16 December 2011; published 20 January 2012)