Fast scanning growth of high-quality graphene films on Cu foils fueled by dimeric carbon precursor  

作　　者：Heng Chen Xiucai Sun Xiaofeng Song Buhang Chen Ziteng Ma Wanjian Yin Luzhao Sun Zhongfan Liu 

机构地区：[1]Center for Nanochemistry,Beijing Science and Engineering Center for Nanocarbons,Beijing National Laboratory for Molecular Sciences,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China [2]Beijing Graphene Institute,Beijing 100095,China [3]College of Materials Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China [4]College of Energy,Soochow Institute for Energy and Materials InnovationS(SIEMIS),Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province,SUDA-BGI Collaborative Innovation Center,Soochow University,Suzhou 215006,China

出　　处：《Nano Research》2023年第10期12246-12252,共7页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(No.T2188101);the Beijing National Laboratory for Molecular Science(No.BNLMS-CXTD-202001).

摘　　要：Carbon source precursor is a critical factor governing chemical vapor deposition growth of graphene films.Methane(CH4),has been the most commonly used precursor in the last decade,but it presents challenges in terms of decomposition efficiency and growth rate.Here we thoroughly evaluated acetylene(C2H_(2)),a precursor that is probably for providing carbon dimer(C2)species,for fast growth of large-scale graphene films.We find that the graphene growth behaviors fueled by C2H_(2) exhibit unconventional localized growth behavior with significant advantages in terms of high growth rate,which mainly ascribe to the as-decomposed C2 species.Therefore,a C2-fueled scanning growth strategy is proposed,and the fast scanning growth rate of 40 cm/min was experimentally demonstrated.This growth strategy is compatible with the approach of unidirectional growth of single-crystal graphene films,and the as-grown graphene films are of high-quality.This work demonstrates a reliable and promising strategy for the rapid synthesis of high-quality graphene film and may pave the avenue to cost-effective mass production of graphene materials in the roll-to-roll system.

关 键 词：graphene film chemical vapor deposition fast growth carbon dimer roll-to-roll production 

分 类 号：TB383[一般工业技术—材料科学与工程]