1. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, D-70550, Stuttgart, Germany.
Adv Mater. 2015 Apr 24;27(16):2635-41. doi: 10.1002/adma.201500599. Epub 2015 Mar 18.
The response of individual domains in wafer-sized chemical vapor deposition graphene is measured by contactless sub-terahertz interferometry, observing the intrinsic optical conductance and reaching very high mobility values. It is shown that charged scatterers limit the mobility, validating previous theoretical predictions, and sub-terahertz quality assessment is demonstrated, as necessary for large-scale applications in touchscreens, as well as wearable and optoelectronic devices.
采用非接触式亚太赫兹干涉测量法测量晶圆级化学气相沉积石墨烯中各个畴的响应,观察到固有光电导并达到非常高的迁移率值。结果表明,带电散射体限制了迁移率,验证了先前的理论预测,并进行了亚太赫兹质量评估,这对于触摸屏、可穿戴和光电设备等大规模应用是必要的。