Tuning optical conductivity of large-scale CVD graphene by strain engineering.

Ni, Guang-Xin; Yang, Hong-Zhi; Ji, Wei; Baeck, Seung-Jae; Toh, Chee-Tat; Ahn, Jong-Hyun; Pereira, Vitor M; Ozyilmaz, Barbaros · Adv Mater · 2014

basic_science · Level V

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Abstract

A controllable optical anisotropy in CVD graphene is shown. The transparency in the visible range of pre-strained CVD graphene exhibits a periodic modulation as a function of polarization direction. The strain sensitivity of the optical response of graphene demonstrated here can be effectively utilized towards novel ultra-thin optical devices and strain sensing applications.

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