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Kevin Yager

Group Leader, Electronic Nanomaterials | Electronic Nanomaterials

Expertise

  • X-ray scattering (SAXS, WAXS, GISAXS)
  • Self-assembly
  • Polymer thin films
  • Block-copolymers
  • Machine-learning
  • Autonomous experimentation

CFN Research Activities

Kevin’s research program includes materials science and measurement science aspects. His materials science research focuses on the self-assembly of soft materials, especially in terms of how non-equilibrium phenomena and pathway-dependent ordering can be exploited in order to generate complex 'non-native' morphologies. His measurement science research focuses on x-ray scattering, especially the development of new techniques suited to studying nanomaterials. Kevin has worked with collaborators to study a wide variety of materials, including block-copolymers, nanoparticle superlattices, organic photo-voltaics, and liquid crystals. Kevin is currently developing autonomous scientific instruments, including deploying robotics and machine-learning at synchrotron beamlines to allow autonomous materials discovery.

Education

  • B.Sc.: McGill University
    • Major: Chemistry; Minor: Computer Science
  • PhD: McGill University
    • Physical Chemistry
    • Dissertation Title: Investigation of Photomechanical Surface Patterning in Azobenzene Materials

Professional Appointments

  • Postdoctoral Research: National Institute of Standards and Technology
    • Polymers Division
    • Project: Directed 3D Assembly of Block-copolymer Films

Selected Publications & Research Highlights

  • Majewski, P.W.; Yager, K.G. "Millisecond Ordering of Block-Copolymer Films via Photo-Thermal Gradients" ACS Nano 2015, 9, 3896–3906.
  • Majewski, P.W.; Rahman, A.; Black, C.T.; Yager, K.G. "Arbitrary lattice symmetries via block copolymer nanomeshes" Nature Communications 2015, 6, 7448.
  • Majewski, P.W.; Yager, K.G. "Latent Alignment in Pathway-Dependent Ordering of Block Copolymer Thin Films" Nano Letters 2015, 15, 5221–5228.
  • Stein, A.; Wright, G.; Yager, K.G.; Doerk G.S.; Black, C.T. "Selective directed self-assembly of coexisting morphologies using block copolymer blends" Nature Communications 2016, 7, 12366.
  • Rahman, A.; Majewski, P.W.; Doerk, G.; Black, C.T.; Yager, K.G. "Non-native Three-dimensional Block Copolymer Morphologies " Nature Communications 2016, 7, 13988.
  • Liu, J.; Lhermitte, J.; Tian, Y.; Zhang, Z.; Yu, D.; Yager, K.G. "Healing X-ray scattering images" IUCrJ 2017, 4, 455–465.
  • Choo, Y.; Majewski, P.W.; Fukuto, M.; Osuji, C.O.; Yager, K.G. "Pathway-engineering for highly-aligned block copolymer arrays" Nanoscale 2018, 10, 416–427.

Research Highlights:

Group leader Kevin Yager explains that the mission of his group is to fabricate and measure the properties of nanoscale architectures with interesting electronic behaviors.