Response of sample 4 (CVD, monolayer GR) to THz radiation. Due to a large sample size domain of 10 mm2, higher thermal energy is required to induce a sufficient bolometric response. The red solid line shows the actual data. The blue solid line shows the background change which represents the transition in the response modes for the device. The blue dashed line shows the average value of the resistance. The two figures correspond to two different time segments to imply the response regeneration.
Mahjoub et al. Nanoscale Research Letters 2013 8:22 doi:10.1186/1556-276X-8-22