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Pattern‐Potential‐Guided Growth of Textured Macromolecular Films on Graphene/High‐Index Copper
Author(s) -
Zhou Dikui,
Zhang Zhihong,
Zhu Yihan,
Xiao Yiqun,
Ding Qingqing,
Ruan Luoyuan,
Sun Yiran,
Zhang Zhibin,
Zhu Chongzhi,
Chen Zongping,
Wu Yongjun,
Huang Yuhui,
Sheng Guan,
Li Jixue,
Yu Dapeng,
Wang Enge,
Ren Zhaohui,
Lu Xinhui,
Liu Kaihui,
Han Gaorong
Publication year - 2021
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202006836
Subject(s) - macromolecule , graphene , materials science , nanotechnology , copper , electronics , chemical physics , chemistry , biochemistry , metallurgy
Macromolecular films are crucial functional materials widely used in the fields of mechanics, electronics, optoelectronics, and biology, due to their superior properties of chemical stability, small density, high flexibility, and solution‐processing ability. Their electronic and mechanical properties, however, are typically much lower than those of crystalline materials, as the macromolecular films have no long‐range structural ordering. The state‐of‐the‐art for producing highly ordered macromolecular films is still facing a great challenge due to the complex interactions between adjacent macromolecules. Here, the growth of textured macromolecular films on a designed graphene/high‐index copper (Cu) surface is demonstrated. This successful growth is driven by a patterned potential that originates from the different amounts of charge transfer between the graphene and Cu surfaces with, alternately, terraces and step edges. The textured films exhibit a remarkable improvement in remnant ferroelectric polarization and fracture strength. It is also demonstrated that this growth mechanism is universal for different macromolecules. As meter‐scale graphene/high‐index Cu substrates have recently become available, the results open a new regime for the production and applications of highly ordered macromolecular films with obvious merits of high production and low cost.