Journal of the American Chemical Society · 2025
Scalable, Universal In Situ Self-Heating Chemical Vapor Deposition Strategy for High-Quality Thick Turbostratic Graphene via Combined Twist-Tilt Configuration Engineering.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Yang Yuyao, Fang Ye, Feng Erkang, Jiang Wenjing, Zhang Xinchi, Liu Longfei, Cheng Yi, Yang Fan, Li Wenjuan, Liang Fushun, Zheng Kangyi, Deng Bing, Qi Yue, Liu Zhongfan
Аннотация
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 (<1010 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.