Design of softened polystyrene for crack- and contamination-free large-area graphene transfer†,Nanoscale

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Design of softened polystyrene for crack- and contamination-free large-area graphene transfer†
Nanoscale ( IF 5.8 ) Pub Date : 2018-10-23 00:00:00 , DOI: 10.1039/c8nr05611k
Tuqeer Nasir _{1,

2,

3,

4} , Bum Jun Kim _{1,

2,

3,

4} , Kwan-Woo Kim _{2,

4,

5,

6} , Sang Hoon Lee _{2,

4,

5,

6} , Hyung Kyu Lim _{2,

4,

5,

6} , Dong Kyu Lee _{3,

4,

7,

8,

9} , Byung Joo Jeong _{2,

4,

5,

6} , Hak Chul Kim _{2,

4,

5,

6} , Hak Ki Yu _{3,

4,

7,

8,

9} , Jae-Young Choi _{1,

2,

3,

4,

5}

Affiliation

The fundamental issues related to the formation of mechanical cracks and the chemical residue during the transfer process of large-area CVD graphene by polymeric carrier-films are addressed in this work. This paper presents a method to design a new polymer carrier-film (using polystyrene (PS) and 4,4′-diisopropylbiphenyl (DIPB)) that is free from mechanical cracks and polymer residue during the transfer of large-area graphene from a metal catalyst. This new polymer carrier film shows excellent mechanical flexibility and good solubility in tetrahydrofuran solvent without any residue and it is confirmed that the graphene transfer process is excellent without mechanical destruction even over a large area. Our result gave a technical milestone for the real industrial application of graphene in many application areas (not only graphene but also several two-dimensional materials such as boron nitride, transition metal di-chalcogenide, and black phosphorus).

中文翻译：

用于无裂纹和无污染大面积石墨烯转移的软化聚苯乙烯设计†

这项工作解决了与大面积CVD石墨烯通过聚合物载体膜转移过程中机械裂纹和化学残留物形成有关的基本问题。本文提出了一种设计新的聚合物载体膜的方法（使用聚苯乙烯（PS）和4,4'-二异丙基联苯（DIPB）），该载体膜在从金属转移大面积石墨烯的过程中没有机械裂纹和聚合物残留物催化剂。这种新的聚合物载体膜显示出极好的机械柔韧性和在四氢呋喃溶剂中的良好溶解性，没有任何残留，并且证实了即使在大面积上，石墨烯转移过程也很优异，并且没有机械破坏。

更新日期：2018-10-23

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