Epitaxial Growth of Molecular Crystals on van der Waals Substrates for High-Performance Organic Electronics

Citation

Chul-Ho Lee, C.-H.; Schiros, T.; Santos, E.J.G.; Kim, B.; Yager, K.G.;Kang, S.J.; Lee, S.; Yu, J.; Watanabe, K.; Taniguchi, T.; Hone, J.; Kaxiras, E.; Nuckolls, C.; Kim, P. "Epitaxial Growth of Molecular Crystals on van der Waals Substrates for High-Performance Organic Electronics" Advanced Materials 2014, 26 2812–2817.
doi: 10.1002/adma.201304973

Summary

We demonstrate that rubrene crystallizes on graphene in an epitaxial manner, with implications for its use in organic electronics.

Abstract

Epitaxial van der Waals (vdW) heterostructures of organic and layered materials are demonstrated to create high-performance organic electronic devices. High-quality rubrene films with large single-crystalline domains are grown on h-BN dielectric layers via vdW epitaxy. In addition, high carrier mobility comparable to free-standing single-crystal counterparts is achieved by forming interfacial electrical contacts with graphene electrodes.