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◆ Journal of the American Chemical Society2025-11-13· Graphene

Scalable, Universal In Situ Self-Heating Chemical Vapor Deposition Strategy for High-Quality Thick Turbostratic Graphene via Combined Twist–Tilt Configuration Engineering

Yuyao Yang, Fang Ye, Erkang Feng, Wenjing Jiang, Xinchi Zhang, Longfei Liu, Yi Cheng, Fan Yang, Wenjuan Li, Fushun Liang, Kangyi Zheng, Bing Deng, Yue Qi, Zhongfan Liu

原始摘要(英文原文)· Original abstract
High-quality, thick turbostratic graphene offers a promising route to robust, reliable applications while retaining monolayer-like properties. However, its preparation remains challenging, particularly in controlling interlayer configurations and maintaining the quality at high thickness. Herein, an in situ self-heating CVD strategy is developed, realizing simultaneous combined control over twist–tilt interlayer configurations in high-quality, thick graphene. A rapid thermal period stabilizes turbostratic twist stacking by suppressing metastable-to-stable transformation into AB-stacking around the lattice’s z -axis, yielding a high layer-number-independent turbostratic ratio (∼92%). Localized self-heating suppresses undesirable gas-phase reactions and amorphous carbon formation, while the electrical “hot-spot” effect facilitates selective defect healing. These suppress tilt configurations around the lattice’s x / y axes, resulting in high in-plane interlayer alignment. This strategy achieves low defect density (<10 10 cm –2 ) at rapid growth rate (>100 layers hour –1 ), rarely accessible via conventional CVD. A self-heating CVD strategy demonstrates excellent scalability and universality, and life cycle assessment and technoeconomic analysis reveal its superior environmental sustainability and cost-effectiveness.
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Scalable, Universal In Situ Self-Heating Chemical Vapor Deposition Strategy for High-Quality Thick Turbostratic Graphene via Combined Twist–Tilt Configuration Engineering — 科研速览 Science Skim