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arXiv · 1705.04412

Highly oriented SrTiO3 thin film on graphene substrate

Sang A Lee·Jae-Yeol Hwang·Eun Sung Kim·Sung Wng Kim·Woo Seok Choi
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Abstract

Growth of perovskite oxide thin films on Si in crystalline form has long been a critical obstacle for the integration of multifunctional oxides into Si-based technologies. In this study, we propose pulsed laser deposition of a crystalline SrTiO3 thin film on a Si using graphene substrate. The SrTiO3 thin film on graphene has a highly (00l)-oriented crystalline structure which results from the partial epitaxy. Moreover, graphene promotes a sharp interface by highly suppressing the chemical intermixing. The important role of graphene as a 2D substrate and diffusion barrier allows expansion of device applications based on functional complex oxides.

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Sang A Lee, Jae-Yeol Hwang, Eun Sung Kim, Sung Wng Kim, Woo Seok Choi. 2017-05-12. Highly oriented SrTiO3 thin film on graphene substrate. https://doi.org/10.1021/acsami.6b12258

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