journal article·2020-11-24

Highly Conductive Nitrogen-Doped Vertically Oriented Graphene toward Versatile Electrode-Related Applications

Lingzhi Cui, Yahuan Huan, Junjie Shan, Bingyao Liu, Junling Liu, Huanhuan Xie, Fan Zhou, Peng Gao, Yanfeng Zhang, Zhongfan Liu

ACS Nano· Volume 14· Issue 11
Publisher page

Abstract

The direct growth of vertically oriented graphene (VG) on low-priced, easily accessible soda-lime glass can propel its applications in transparent electrodes and energy-relevant areas. However, graphene deposited at low temperature (∼600 °C) on the catalysis-free insulating substrates usually presents high defect density, poor crystalline quality, and unsatisfactory electrical conductivity. To tackle this issue, we select high borosilicate glass as the growth substrate (softening point ∼850 °C), which can resist higher growth temperature and thus afford higher graphene crystalline quality, by using a radio-frequency plasma-enhanced chemical vapor deposition (rf-PECVD) route. A nitrogen doping strategy is also combined to tailor the carrier concentration through a methane/acetonitrile-precursor-based synthetic strategy. The sheet resistance of as-grown nitrogen-doped (N-doped) VG films on high borosilicate glass can thus be lowered down to ∼2.3 kΩ·sq–1 at a transmittance of 88%, less than half of the methane-precursor-based PECVD product. Significantly, this synthetic route allows the achievement of 30-inch-scale uniform N-doped graphene glass, thus promoting its applications as excellent electrodes in high-performance switchable windows. Additionally, such N-doped VG films were also employed as efficient electrocatalysts for electrocatalytic hydrogen evolution reaction.
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Research context

OpenAlex topics: Graphene research and applications · Supercapacitor Materials and Fabrication · Advancements in Battery Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Nanochemistry (CNC), College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People’s Republic of China

Beijing Graphene Institute, Beijing 100091, People’s Republic of China

State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, People’s Republic of China

Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, People’s Republic of China

Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, People’s Republic of China

Electron Microscopy Laboratory and International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, People’s Republic of China

Collaborative Innovation Centre of Quantum Matter, Beijing 100871, People’s Republic of China

Beijing National Laboratory for Molecular Sciences, Beijing 100871, People’s Republic of China

Funding

Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Beijing Municipality · National Natural Science Foundation of China · Beijing National Laboratory for Molecular Sciences

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