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In-situ Organic Film Growth
PIs: George Malliaras (Cornell University)
             Randy Headrick (University of Vermont)


Experimental setup at the CHESS A2 station.
(a) Photograph of the custom built chamber and
(b) cartoon of working conditions.


 

Goal: in-situ studies of the early stages of the epitaxial growth of thin organic films on different substrates;

Techniques: specular and grazing-incidence diffraction, reflectometry;

Beamline optics: multilayers with different bandwidth.


Experimental setup at the CHESS A2 station.
(a) Photograph of the custom built chamber and
(b) cartoon of working conditions.

Reflectivity curves from 1ML of pentacene on silicon
when the temperature is 70oC (10-6 Torr vacuum) and
30oC (atmospheric pressure).
The fitting results (green and red lines)
indicate that water is absorbed between the pentacene
layer and the underlying substrate.
GIXD of pentacene thin-films on silicon dioxide.
(a) Cartoon of scattering setup and
(b) results from a film containing both phases
of pentacene.

Publications:
 A. C. Mayer, R. Ruiz, R. L. Headrick, A. Kazimirov, and G. G. Malliaras; “Early Stages of Pentacene Film Growth on Silicon Oxide”, Organic Electronics, 5; 257-263 (2004)

R. Ruiz, A.C. Mayer, G.G. Malliaras, B. Nickel, G. Scoles, A. Kazimirov, H. Kim, R.L. Headrick, and Z. Islam, “Structure of Pentacene Thin Film”, Applied Phys. Letters, 85; 4926-4928 (2004)

R. Ruiz, D. Choudhary, B. Nickel, T. Toccoli, K-C. Chang, A. C. Mayer, P. Clancy, J. M. Blakely, R. L.Headrick, S.  Iannotta, and G. G.Malliaras, “PentaceneThinFilmGrowth”, Chemistry of Materials, 16; 4497-4508 (2004)

A.C. Mayer, R. Ruiz, H. Zhou, R.L. Headrick, A. Kazimirov, and G. Malliaras; "Growth Dynamics of Pentacene Thin Films: Real Time Synchrotron X-ray Scattering Study", Phys. Rev. B, 77; 205307 (2006)

2008 Run

Nov 19th - Dec 22nd

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