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Research Interests

The Hersam Research Group specializes in the synthesis, purification, functionalization, and application of low-dimensional nanoelectronic materials including monodisperse carbon nanotubes, graphene, plasmonic nanoparticles, transition metal dichalcogenides, hexagonal boron nitride, black phosphorus, and borophene. Surface chemical functionalization allows further tunability over the properties of these low-dimensional nanoelectronic materials including self-assembled monolayers on epitaxial graphene, covalent functionalization of graphene epoxide, monolayer molybdenum disulfide, graphene nanoribbons on germanium, surface passivation of black phosphorus, and organic-borophene heterostructures. The integration of these diverse materials into mixed-dimensional van der Waals heterostructures enables significant advances in diverse applications including thin-film transistors, memristors, transparent conductors, photovoltaics, batteries, and biomedical imaging contrast agents. In addition to fundamental studies, the Hersam Research Group commercializes low-dimensional nanoelectronic materials through scalable nanomanufacturing methods such as continuous flow solution processing and a range of printing methods encompassing inkjet, aerosol jet, gravure, screen, and 3D printing.

Education/Academic qualification

Electrical Engineering, PhD, University of Illinois at Urbana-Champaign

… → 2000

Microelectronic Engineering and Semiconductor Physics, MPhil, University of Cambridge

… → 1997

Electrical Engineering, BS, University of Illinois at Urbana-Champaign

… → 1996

Fingerprint Fingerprint is based on mining the text of the experts' scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Research Output 1996 2018

All-Electrical Determination of Crystal Orientation in Anisotropic Two-Dimensional Materials

Peng, L., Wells, S. A., Ryder, C. R., Hersam, M. C. & Grayson, M. Feb 21 2018 In : Physical Review Letters. 120, 8, 086801

Research output: Contribution to journalArticle

Crystal impurities
Electric variables measurement
flakes
Crystal orientation
Anisotropy

Anhydrous Liquid-Phase Exfoliation of Pristine Electrochemically Active GeS Nanosheets

Lam, D., Chen, K. S., Kang, J., Liu, X. & Hersam, M. C. Apr 10 2018 In : Chemistry of Materials. 30, 7, p. 2245-2250 6 p.

Research output: Contribution to journalArticle

Nanosheets
Germanium
Liquids
Sonication
Energy storage

Assessing and Mitigating the Hazard Potential of Two-Dimensional Materials

Guiney, L. M., Wang, X., Xia, T., Nel, A. E. & Hersam, M. C. Apr 4 2018 (Accepted/In press) In : ACS nano.

Research output: Contribution to journalArticle

Nitrobenzene
hazards
Hazards
toxicity
streamlining

Borophene as a prototype for synthetic 2D materials development

Mannix, A. J., Zhang, Z., Guisinger, N. P., Yakobson, B. I. & Hersam, M. C. Jun 1 2018 In : Nature Nanotechnology. 13, 6, p. 444-450 7 p.

Research output: Contribution to journalArticle

Vehicle springs
prototypes
boron
synthesis
Boron

Charge Separation at Mixed-Dimensional Single and Multilayer MoS2/Silicon Nanowire Heterojunctions

Henning, A., Sangwan, V. K., Bergeron, H., Balla, I., Sun, Z., Hersam, M. C. & Lauhon, L. J. May 16 2018 In : ACS Applied Materials and Interfaces. 10, 19, p. 16760-16767 8 p.

Research output: Contribution to journalArticle

Nanowires
Heterojunctions
Multilayers
Silicon
Photocurrents