Areas of Interest
My research group is interested in determining the composition, morphology and structure of polymeric and electronic materials at the sub-micron spatial scale through the use of novel microscopes. Of particular interest is the quantitative mapping of the chemical composition and the orientation of specific chemical groups in multi-component polymers and polymer composites and the structure property relationships in these materials. Compositional characterization is achieved by utilizing Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy and modeling the NEXAFS spectra with those from reference compounds. The research is highly interdisciplinary and benefits from extensive collaborations with other research groups and industry (e.g. Garcia MRSEC, Dow Chemical, EXXON, Hitchcock group at McMaster, X-ray Microscopy at Stony Brook, Spontak group at NCSU). Characterization of electronic materials is performed by imaging differences in the photo-threshold between materials with a high spatial resolution Photoemission Electron Microscope (PEEM). This is performed in collaboration with Profs. Nemanich (NCSU Physics) and Davis (NCSU - MatSciEng). H. Ade is spokes person of a Participating Research Team (PRT) that is building a Scanning Transmission X-ray Microscope at the Advanced Light Source in Berkeley dedicated to the research of synthetic and natural polymers. This “Polymer STXM” team is comprised of researchers from NCSU, McMaster, Dow Chemical, ALS, SUNY@Stony Brook, NIST, and the Geophysical Laboratory. (more info on Polymer STXM)
Recent Publications
Resonant soft x-ray reflectivity of organic thin films
C. Wang, T. Araki, B. Watts, S. Harton, T. Koga, Tadanori), S. Basu, H. Ade
Journal Of Vacuum Science & Technology A
25
,
575-586
(
2007
)
[Manuscript in PDF]
X-ray microscopy of photovoltaic polyfluorene blends: Relating nanomorphology to
device performance
C.R. McNeill, B. Watts, L. Thomsen, H. Ade, N.C. Greenham, P.C. Dastoor
Macromolecules
40
,
3263-3270
(
2007
)
[Manuscript in PDF]
Solid state effects in the NEXAFS spectra of alkane-based van der Waals crystals: Breakdown of molecular model
Y. Zou, T. Araki, G. Appel, A.L.D. Kilcoyne, H. Ade
Chemical Physical Letters
430
,
287-292
(
2006
)
[Manuscript in PDF]
Resonant soft x-ray scattering from structured polymer nanoparticles
T. Araki, H. Ade, J.M. Tubbs, D.C. Sundberg, G.E. Mitchell, J.B. Kortright, A.L.D. Kilcoyne
Applied Physics Letters
89
,
Art. No. 124106
(
2006
)
[Manuscript in PDF]
Substrate Effect on the Melting Temperature of Thin Polyethylene
Films
Y. Wang, M. Rafailovich, J. Sokolov, D. Gersappe, T. Araki, Y. Zou, A.L.D. Kilcoyne, H. Ade, G. Marom, A. Lustiger
Physical Review
Letters 96, 028303 (2006)
[Manuscript
in PDF]
Direct Imaging and Spectroscopic Characterization of
Stimulus-Responsive Microgels
S. Fujii, S.P. Armes, T. Araki, H. Ade
Journal of the American Chemical Society 127,
16808-16809 (2005)
[Manuscript
in PDF]
Soft x-ray resonant reflectivity of low-Z material thin
films
Wang C, Araki T, H. Ade
Applied Physics Letters
87, 214109 (2005)
[Manuscript
in PDF]
Diffusion-Controlled Reactive Coupling at Polymer-Polymer
Interfaces
Harton SE, Stevie F. A., H. Ade
Macromol 38,
3543-3546 (2005)
[Manuscript in
PDF]
Electronic structure of noncrystalline transition metal silicate and
aluminate alloys
G. Lucovsky, G.B. Rayner, D. Kang, G. Appel, R.S.
Johnson, Y. Zhang, D.E. Sayers, H. Ade, J.L. Whitten.
Appl. Phys.
Lett. 79, 1775-1777 (2001)
[Manuscript in
PDF]
Confinement Induced Miscibility in Polymer Blends
S.
Zhu, Y. Liu, M.H. Rafailovich, J. Sokolov, D. Gersappe, D. A. Winesett, and H.
Ade
Nature 400, 49 (1999)
[Manuscript in
PDF]
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