Masters Theses

Abstract

"This work involves the photosensitization of photorefractive polymeric composites through the inclusion of multiwalled and singlewalled carbon nanotubes grafted to poly(N-vinyl carbazole). The photorefractive nature of the holograms gratings was established using two-beam-coupling, yielding two-beam-coupling gain coefficients approaching 80 cm⁻¹. Degenerate-four-wave-mixing experiments exhibited diffraction efficiencies as high as 60% as well as over-modulation voltages as low as ~ 40 V/µm. These notable figures of merit indicate that the grafting of the various carbon nanotubes to the poly(N-vinyl carbazole) polymer resulted in enhanced photorefractive performance. The mechanism responsible for this enhancement in photorefractive performance is investigated using a variety of experimental techniques demonstrating that an increase in carbon nanotubes solubility resulting from the adornment with poly (N-vinyl carbazole) is primarily responsible for the observed improvement"--Abstract, page iv.

Advisor(s)

Wang, Jee C.

Committee Member(s)

Winiarz, Jeffrey G.
Neogi, P. (Partho), 1951-

Department(s)

Chemical and Biochemical Engineering

Degree Name

M.S. in Chemical Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Spring 2010

Pagination

x, 76 pages

Note about bibliography

Includes bibliographical references.

Rights

© 2010 Naveen Kumar Lingam, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Subject Headings

Nanotubes -- Carbon contentPhotorefractive materialsPhotosensitizing compoundsPolymers

Thesis Number

T 9619

Print OCLC #

680512713

Electronic OCLC #

808631371

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