Scalable and High-Quality Monolayer Graphene Transfer onto Polymer Membranes Assisted by Camphor  

作　　者：Jun-Kan Yue Jing Liang Qiao-Yu Tan Man Chen Jing-Wen Li Qing Guo Run-Lai Li Qiang Fu 

机构地区：[1]College of Polymer Science&Engineering,State Key Laboratory of Polymer Materials Engineering,Sichuan University,Chengdu,610065,China

出　　处：《Chinese Journal of Polymer Science》2024年第12期1986-2001,I0011,共17页高分子科学（英文版）

基　　金：This work was financially supported by the National Natural Science Foundation of China(NSFC)(Nos.52233002 and 52103042);the Natural Science Foundation of Sichuan Province(No.24NSFSC6554);the State Key Laboratory of Polymer Materials Engineering(No.sklpme2022-3-09).

摘　　要：The quest for scalable integration of monolayer graphene into functional composites confronts the bottleneck of high-fidelity transfer onto substrates,crucial for unlocking graphene’s full potential in advanced applications.Addressing this,our research introduces the camphor-assisted transfer(CAT)method,a novel approach that surmounts common issues of residue and structural deformation endemic to existing techniques.Grounded in the sublimation dynamics of camphor,the CAT method achieves a clean,contiguous transfer of centimeter-scale monolayer graphene onto an array of polymer films,including ultra-thin polyethylene films.The resultant ultrathin graphene-polyethylene(gPE)films,characterized by their exceptional transparency and conductivity,reveal the CAT method’s unique ability to preserve the pristine quality of graphene,underscoring its practicality for preparing flexible transparent electrodes by monolayer graphene.In-depth mechanism investigation into the camphor sublimation during CAT has led to a pivotal realization:the porosity of the target polymer substrate is a determinant in achieving high-quality graphene transfer.Ensuring that camphor sublimates initially from the polymer side is crucial to prevent the formation of wrinkles or delamination of graphene.By extensive examination of CAT on a spectrum of commonly used polymer films,including PE,PP,PTFE,PI and PET,we have confirmed this important conclusion.This discovery offers crucial guidance for fabricating monolayer graphene-polymer composite films using methods akin to CAT,underscoring the significance of substrate selection in the transfer process.

关 键 词：POLYETHYLENE Monolayer graphene CAMPHOR Graphene/polymer composites van der Waals interaction 

分 类 号：TB383.2[一般工业技术—材料科学与工程]