Issue 23, 2019

Hierarchical patterns with sub-20 nm pattern fidelity via block copolymer self-assembly and soft nanotransfer printing

Abstract

We describe the development of a technique to transfer micrometer patterns of organic thin films with sub-50 nm edge resolution and sub-20 nm pattern fidelity. Large-area transfer of homopolymers, diblock copolymers, and small molecules films is demonstrated, and extended to multitudes of different shapes. Moreover, this technique is amenable to sequential printing (i.e. multilayer stacking) and can be integrated with 2D atomic crystals. This high-fidelity pattern transfer work has broad scope for potential uses from the construction of van der Waals heterostructures interfaced with self-assembled block copolymer thin films to the development of platforms to investigate the influence of hierarchical patterning on cell differentiation.

Graphical abstract: Hierarchical patterns with sub-20 nm pattern fidelity via block copolymer self-assembly and soft nanotransfer printing

Supplementary files

Article information

Article type
Paper
Submitted
01 3 2019
Accepted
10 5 2019
First published
17 5 2019

Polym. Chem., 2019,10, 3194-3200

Author version available

Hierarchical patterns with sub-20 nm pattern fidelity via block copolymer self-assembly and soft nanotransfer printing

H. Tran, H. M. Bergman, K. R. Parenti, A. M. van der Zande, C. R. Dean and L. M. Campos, Polym. Chem., 2019, 10, 3194 DOI: 10.1039/C9PY00335E

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