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Preparation and Characterization of Molybdenum Disulfide Microcrystals in Colloidal Dispersion

Published online by Cambridge University Press:  21 February 2011

E. Lu ,
P. D. Persans ,
A. F. Ruppert  and
R. R. Chianelli
E. Lu
Affiliation:
Physics Department and Center for Integrated Electronics, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
P. D. Persans
Affiliation:
Physics Department and Center for Integrated Electronics, Rensselaer Polytechnic Institute, Troy, NY 12180-3590
A. F. Ruppert
Affiliation:
Exxon Research and Engineering Company, Annandale, NJ 08801
R. R. Chianelli
Affiliation:
Exxon Research and Engineering Company, Annandale, NJ 08801
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Abstract

We report the preparation and general, optical and resonant Raman scattering characterization of MoS2 platelets suspended in an insulating organic liquid. Structural results indicate that the platelets are predominantly 2H in structure and are about 500Å in diameter and 50–90 Å thick. The optical constants of the composite are close to those expected from the simple Maxwell-Garnett effective medium theory. We have observed resonant enhancement of the Raman cross-section for the MoS2 phonon mode at 408 cm−1 as the laser excitation energy is scanned through the “B” exciton.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 164: Symposium H – Materials Issues in Microcrystalline Semiconductors , 1989 , 153
Copyright
Copyright © Materials Research Society 1990

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