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Tungsten Disulfide Nanodispersions for Inkjet Printing and Semiconducting Devices

Published online by Cambridge University Press:  10 May 2017

Jay A. Desai ,
Nirmal Adhikari  and
Anupama B. Kaul
Jay A. Desai
Affiliation:
Department of Metallurgical, Materials and Biomedical Engineering University of Texas at El Paso, El Paso, TX 79968, USA.
Nirmal Adhikari
Affiliation:
Department of Electrical and Computer Engineering University of Texas at El Paso, El Paso, TX 79968, USA.
Anupama B. Kaul*
Affiliation:
Department of Electrical and Computer Engineering University of Texas at El Paso, El Paso, TX 79968, USA.
*
*(Email: [email protected])
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Abstract

In this work, we demonstrate optical and electrical transport properties of chemically exfoliated WS2 in cyclohexanone/ terpineol solvent using different sonication times. High electrical conductivity of WS2 nanodispersions was observed when appropriate amount of voltage was applied indicating their semi-conductive behavior. Surface morphology of WS2 nanodispersions sonicated at different times were studied using optical microscopy. Optical bandgap of WS2 nanodispersions were determined from optical absorbance spectrum. Inkjet printing was used to demonstrate uniform distribution of WS2 nanosheets and their precise and large scale printability. These dispersions indicate the potential of WS2 in various optoelectronic and semiconducting device applications.

Keywords

electrical propertiessemiconductingRaman spectroscopy
Type
Articles
Information
MRS Advances , Volume 2 , Issue 60: Nanomaterials , 2017 , pp. 3691 - 3696
Copyright
Copyright © Materials Research Society 2017 

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References

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