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Teng Li Group Research

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Pseudomagnetic Fields in a Locally Strained Graphene Drumhead

Recent experiments reveal that a scanning tunneling microscopy (STM) probe tip can generate a highly localized strain field in a graphene drumhead, which in turn leads to pseudomagnetic fields in the graphene that can spatially confine graphene charge carriers in a way similar to a lithographically defined quantum dot (QD). While these experimental findings are intriguing, their further implementation in nanoelectronic devices hinges upon the knowledge of key underpinning parameters, which still remain elusive.

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Hydrogenation-Assisted Graphene Origami (HAGO)

Hydrogenation-Assisted Graphene Origami and Its Application in Programmable Molecular Mass Uptake, Storage, and Release 

Shuze Zhu and Teng Li, ACS Nano, 8 (3), pp 2864–2872 (2014)

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Determining Graphene Adhesion via Substrate-regulated Morphology of Graphene

Understanding the adhesion between graphene and other materials is crucial for achieving more reliable graphene-based applications in electronic devices and nanocomposites. The ultra-thin profile of graphene, however, poses significant challenge to direct measurement of its adhesion property using conventional approaches. We show that there is a strong correlation between the morphology of graphene on a compliant substrate with patterned surface and the graphene-substrate adhesion.

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Extrinsic Morphology of Graphene

Teng Li, Extrinsic morphology of graphene, Modelling Simul. Mater. Sci. Eng., 19, 054005 (2011)  

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A quality map of transfer printing

M.B. Tucker, D.R. Hines, T. Li, A quality map of transfer printing, Journal of Applied Physics, 106, 103504, (2009)  DOI: 10.1063/1.3259422

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Snap-through instability of graphene on substrates

T. Li, Z. Zhang, Snap-through instability of graphene on substrates, Nanoscale Research Letters,DOI: 10.1007/s11671-009-9460-1 (2009). (Open access)

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