Details

Autor(en) / Beteiligte

• Wang, Shiwei
• Zheng, Chunyang
• Sun, Xiucai
• Zhao, Yixuan
• Zhang, Shengping
• Liu, Qingqing
• Yang, Jiawei
• Zhu, Yeshu
• Shao, Jiaxin
• Wei, Mingyue
• Yin, Wanjian
• Yin, Jianbo
• Lin, Li
• Jia, Kaicheng
• Liu, Zhongfan

Titel

Controlled Growth of Bilayer Graphene on Space-Confined Cu Substrates

Ist Teil von

• Journal of physical chemistry. C, 2023-07, Vol.127 (28), p.13601-13608

Ort / Verlag

American Chemical Society

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Bilayer graphene with an AB-stacking sequence has emerged as one of the promising materials owing to its unique band-gap structure and the fascinating potential in electronic and photonic applications. However, the chemical vapor deposition growth of bilayer graphene on Cu substrates still suffers from limited bilayer coverage, poor uniformity, and random distribution of the stacking order. Herein, we demonstrated an efficient method to synthesize centimeter-sized graphene films with a bilayer ratio of over 80% on space-confined Cu substrates. Moreover, the stacking order of the as-obtained bilayer graphene films was proven to be 100% AB-stacking structure by transmission electron microscopy and Raman characterization. Band-gap tunability and uniform optical transmittance also confirmed the high quality of as-obtained bilayer graphene. This work provides a new insight into the growth of graphene with controlled layer thickness and a new choice for the production of AB-stacked bilayer graphene films.