Oxygen-assisted direct growth of large-domain and high-quality graphene on glass targeting advanced optical filter applications
O2-assisted chemical vapor deposition (CVD), graphene growth, large domain, glass, optical filter
Growing high quality graphene films directly on glass by chemical vapor deposition (CVD) meets a growing demand for constructing high-performance electronic and optoelectronic devices. However, the graphene synthesized by prevailing methodologies is normally of polycrystalline nature with high nucleation density and limited domain size, which significantly handicaps its overall properties and device performances. Herein, we report an oxygen-assisted CVD strategy to allow the direct synthesis of 6-inch-scale graphene glass harvesting markedly increased graphene domain size (from 0.2 to 1.8 μm). Significantly, as-produced graphene glass attains record high electrical conductivity (realizing a sheet resistance of 900 Ω·sq-1 at a visible-light transmittance of 92%) amongst the state-of-the-art counterparts, readily serving as transparent electrodes for fabricating high-performance optical filter devices. This work might open a new avenue for the scalable production and application of emerging graphene glass materials with high quality and low cost.
Tsinghua University Press
Bingzhi Liu, Huihui Wang, Wei Gu, Le Zhou, Zhaolong Chen, Yufeng Nie, Congwei Tan, Haina Ci, Nan Wei, Lingzhi Cui, Xuan Gao, Jingyu Sun, Yanfeng Zhang, Zhongfan Liu. Oxygen-assisted direct growth of large-domain and high-quality graphene on glass targeting advanced optical filter applications. Nano Research 2021, 14(1): 260-267.