METAL/SEMICONDUCTOR SORTING OF LARGE DIAMETER SINGLE-WALLED CARBON NANOTUBES BY NOVEL LIQUID CHROMATOGRAPHY METHODS.

Simple item page
dc.contributor.advisorFrey, Douglas D
dc.contributor.authorRezaei, Payam
dc.contributor.departmentChemical, Biochemical & Environmental Engineering
dc.contributor.programEngineering, Chemical and Biochemical
dc.date.accessioned2021-09-01T13:55:51Z
dc.date.available2021-09-01T13:55:51Z
dc.date.issued2020-01-01
dc.description.abstractThe growth of the semiconductor industry has been dependent upon the continuous miniaturization of silicon-based transistors over the past five decades. Currently, the dimensions of such transistors are reaching to the sub 10-nm regime wherein quantum physical laws set limits to further miniaturization of silicon-based materials. As a result, new materials that properly function at such reduced dimensions are highly sought. Single-walled carbon nanotubes (SWCNTs) are considered as the most promising nanomaterials in this regard due to their exceptional electronic properties. The upstream synthesis methods used for SWCNT production result in the generation of complex mixtures of both metallic and semiconducting forms. However, the application of SWCNTs as electronic transistors requires fractions that are highly enriched in the semiconducting forms. The use of SWCNTs as highly selective sensors, components of synthetic skin that preserve a sense of touch, and other new technologies also require the use of purified fractions containing single chiral forms. To address this, we have investigated multiple aqueous-based separation techniques that yield high purity fractions of a single electronic type. Our results demonstrate that various modes of liquid chromatography under optimized conditions yield efficient separations of semiconducting and metallic SWCNTs. We believe that the knowledge acquired, and the techniques developed in this work give strong evidence of the important role of liquid chromatography in the future of the nanotechnology, in general, and the semiconducting industry, in particular.
dc.formatapplication:pdf
dc.genredissertations
dc.identifierdoi:10.13016/m2djml-uvyc
dc.identifier.other12164
dc.identifier.urihttp://hdl.handle.net/11603/22910
dc.languageen
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Chemical, Biochemical & Environmental Engineering Department Collection
dc.relation.ispartofUMBC Theses and Dissertations Collection
dc.relation.ispartofUMBC Graduate School Collection
dc.relation.ispartofUMBC Student Collection
dc.sourceOriginal File Name: Rezaei_umbc_0434D_12164.pdf
dc.subjectCarbon nanotubes
dc.subjectDownstream
dc.subjectLiquid Chromatography
dc.subjectMetal and Semiconductor SWCNTs
dc.subjectSeparation
dc.subjectSingle-Walled Carbon nanotubes (SWCNTs)
dc.titleMETAL/SEMICONDUCTOR SORTING OF LARGE DIAMETER SINGLE-WALLED CARBON NANOTUBES BY NOVEL LIQUID CHROMATOGRAPHY METHODS.
dc.typeText
dcterms.accessRightsAccess limited to the UMBC community. Item may possibly be obtained via Interlibrary Loan thorugh a local library, pending author/copyright holder's permission.
dcterms.accessRightsThis item may be protected under Title 17 of the U.S. Copyright Law. It is made available by UMBC for non-commercial research and education. For permission to publish or reproduce, please see http://aok.lib.umbc.edu/specoll/repro.php or contact Special Collections at speccoll(at)umbc.edu

Files

Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
Rezaei_umbc_0434D_12164.pdf
Size:
3.99 MB
Format:
Adobe Portable Document Format
Download

Collections

UMBC Theses and Dissertations
UMBC Chemical, Biochemical & Environmental Engineering Department
UMBC Graduate School
UMBC Student Collection