Oxygen-assisted direct growth of large-domain and high-quality graphene on glass targeting advanced optical filter appli
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Oxygen-assisted direct growth of large-domain and high-quality graphene on glass targeting advanced optical filter applications Bingzhi Liu1,2, Huihui Wang2, Wei Gu2, Le Zhou3, Zhaolong Chen1, Yufeng Nie2, Congwei Tan1, Haina Ci4, Nan Wei4, Lingzhi Cui1, Xuan Gao2, Jingyu Sun2,4 (), Yanfeng Zhang1,2 (), and Zhongfan Liu1,2,4 () 1
Center for Nanochemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China Beijing Graphene Institute (BGI), Beijing 100095, China 3 College of Engineering, Peking University, Beijing 100871, China 4 College of Energy, Soochow Institute for Energy and Materials Innovations, Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy Technologies, Soochow University, Suzhou 215006, China 2
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Received: 8 November 2019 / Revised: 6 August 2020 / Accepted: 28 August 2020
ABSTRACT 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 m). 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.
KEYWORDS O2-assisted chemical vapor deposition (CVD), graphene growth, large domain, glass, optical filter
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Introduction
Direct chemical vapor deposition (CVD) growth of graphene on dielectric substrates (e.g., SiO2, Al2O3, SrTiO3, and TiO2) is of paramount significance to promise applications in electronics and optoelectronics. This mainly benefits from the transfer-free nature of thus-derived graphene to surmount problematic issues such as damage or contaminations [1–14]. Along this line, synergizing graphene films and functional substrates with complementary properties should be very intriguing. Our group has systematically reported the direct growth of graphene on glass, endowing conventional glass with advanced surface features (e.g., conductivity, hydrophobicity, and biocompatibility) due to the conformal coating of graphene. Subsequently, strenuous efforts have been made to promote the quality (e.g., large area uniformity, enhanced conductivity, and less defect density) of grown graphene on glass by developing
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