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Daniel Dougherty

Associate Professor

Biography

Professor Dougherty is an experimental condensed matter physicist focused on the study of solid surfaces, interfaces, and thin films. He earned his Ph.D from the University of Maryland at College Park and did postdoctoral research in the Surface Science Center at the University of Pittsburgh and in the Surface and Microanalysis Science Division at NIST, Gaithersburg. He started a new Surface Physics laboratory at NC State in 2008. At NC State, he was a founding member of the NSF Center for Molecular Spintronics and the interdisciplinary Organic and Carbon Electronics Lab (ORaCEL).

The Dougherty Research Group at NC State uses scanning tunneling microscopy, atomic force microscopy, and photoelectron spectroscopy as primary experimental tools. They are focused on characterizing the structural, electronic, and magnetic properties of surfaces and interfaces. Specific materials of interest include carbon-based materials (small organic molecules, polymers, and graphene) and their interfaces with metal and dielectric materials. The group's experiments provide new insights into the complicated and still mysterious quantum properties of condensed matter. In addition, the properties of interfaces studied by the group are of practical use since they often control charge injection efficiency from electrode contacts and carrier mobility in transistor channels.

Select Publications

CuNb1-xTaxO3 (x <= 0.25) solid solutions: impact of Ta(V) substitution and Cu(I) deficiency on their structure, photocatalytic, and photoelectrochemical properties
B. Zoellner, S. Stuart, C. C. Chung, D. B. Dougherty, J. L. Jones, and P. A. Maggard
Journal of material chemistry A   4,  3115   (2016)

Growth of Thermally Stable Crystalline Films on C60 on Flat-lying Copper Phthalocyanine
T. Mcafee, A. Apperson, H. Ade, and D.B. Dougherty
Journal of material chemistry A   4,  1028   (2016)

Indirect Coupling of an organic semiconductor to a d-orbital surface state
J. Wang and D.B. Dougherty
Physical Review B   92,  161401   (2015)

Toward Single Crystal Hybrid-Carbon Electronics: Impact of Graphene Substrate Defect Density on Copper Phthalocyanine Film Growth
T. McAfee, E. Gann, T. Guan, S.C. Stuart, J.E. Rowe, D.B. Dougherty, and H. Ade
Crystal Growth & Design   14,  4394   (2014)

Coverage Dependent Surface Magnetism of Iron Phthalocyanine on an O-Fe(110) Surface
D.B. Dougherty, A. Sandin, E. Vescovo, and J.E. Rowe
Phys. Rev. B   90,  045406   (2014)

Coexisting Bi and Se Surface Terminations of Cleaved Bi2Se3 Single Crystals
A.S. Hewitt, J. Wang, J. Boltersdorf, P.A. Maggard, and D.B. Dougherty
J. Vac. Sci. Tech. B   32,  040103   (2014)

Extrinsic Origins of Electronic Disorder in 2D Organic Crystals
J. Wang and D.B. Dougherty
J. Vac. Sci. Tech. B   32,  030601   (2014)

Molecular Doping Control at a Topological Insulator Surface
J. Wang, A.S. Hewitt, R. Kumar, J. Boltersdorf, T. Guan, F. Hunte, P.A. Maggard, J. Brom, J.M. Redwing, and D.B. Dougherty
J.Phys. Chem. C   118,  14860   (2014)

Modification of Molecular Spin Crossover in Ultrathin Films
A. Pronschinske, Y. Chen, G. Lewis, D.A. Shultz, M. Buongiorno-Nardelli, and D.B. Dougherty
Nano Letters   13,  1429   (2013)

Multiple coexisting intercalation structures of sodium in epitaxial graphene-SiC interfaces
A. Sandin, T. Jayasekera, J.E. Rowe, K.-W. Kim, M. Buongiorno-Nardelli, and D.B. Dougherty
Phys. Rev. B   85,  125410   (2012)

Modeling the Constant Current Distance-Voltage Mode of Scanning Tunneling Spectroscopy
A. Pronschinske, D.J. Mardit, and D.B. Dougherty
Phys. Rev. B   84,  205427   (2011)

Incomplete Screening by Epitaxial Graphene on the Si Face of 6H-SiC(0001)
A. Sandin, A. Pronschinske, J.E. Rowe, D.B. Dougherty
Applied Physics Letters   97,  113104   (2010)

Impact of Local Molecular Environment on the Decay of Image Potential States
A. Pronschinske and D.B. Dougherty
J. Phys. Chem. Lett.   1,  2613   (2010)

Honors & Awards

  • National Science Foundation Career Award
  • Department of Energy Career Award