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Nanoscale Patterning of BaTiO3 on Block Copolymers

Published online by Cambridge University Press:  02 July 2020

T. Lee ,
N. Yao  and
I. A. Aksay
T. Lee
Affiliation:
Department of Chemical Engineering and, Princeton, NJ08544-5211 Princeton Material Institute, Princeton University, Princeton, NJ08544-5211
N. Yao
Affiliation:
Princeton Material Institute, Princeton University, Princeton, NJ08544-5211
I. A. Aksay
Affiliation:
Department of Chemical Engineering and, Princeton, NJ08544-5211 Princeton Material Institute, Princeton University, Princeton, NJ08544-5211
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Extract

Nanoscale pattering of inorganics can be facilitated by using complex fluids as templates. One such approach is to use block copolymeric nanodomains in solid films (< 50 nm) as the template for patterning ceramic clusters with desired shapes and orientations. For instance, we use a triblock copolymer of polystyrene (PS) -polybutadiene (PB) - polystyrene (PS) - Kraton Dl 102® (MW = 71,000 and PS/PB = 28%/78%) as a template material to pattern barium titanate for energy storage applications. The important features of our approach are that (i) the interdomains of PBs in the preformed solid thin films are chemically OH-functionalized in situ, and (ii) the barium titanate precursors are solely localized within and reacted to the interdomains of PBs in solid thin films by condensation.

Thin films were prepared by spin casting a 1% w/w Kraton D1102®/toluene solution on a coverglass. Thin films were transferred to gold TEM specimen grids by the water lift off method.

Type
Nanocrystals and Nanocomposites: Novel Structures for Catalysis, Electronics, and Micromechanics
Information
Microscopy and Microanalysis , Volume 3 , Issue S2: Proceedings: Microscopy & Microanalysis '97, Microscopy Society of America 55th Annual Meeting, Microbeam Analysis Society 31st Annual Meeting, Histochemical Society 48th Annual Meeting, Cleveland, Ohio, August 10-14, 1997 , August 1997 , pp. 423 - 424
Copyright
Copyright © Microscopy Society of America 1997

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References

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This work was supported by MRSEC program of the National Science Foundation (DMR-940032) and by a grant from the Army Research Office (DAAL03-92-G-0241).Google Scholar