Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes
Attachment of PbS quantum dots (QD) to single-walled carbon nanotubes (SWNT) and multiwalled carbon nanotubes (MWCNT) is described; wherein commercially obtained PbS-QD of size 2.7 nm, stabilized by oleic acid, are added to a suspension of single- or multiwalled carbon nanotubes (CNT) prefunctionali...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2014/285857 |
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| author | Anirban Das Eric Hall Chien M. Wai |
| author_facet | Anirban Das Eric Hall Chien M. Wai |
| author_sort | Anirban Das |
| collection | DOAJ |
| description | Attachment of PbS quantum dots (QD) to single-walled carbon nanotubes (SWNT) and multiwalled carbon nanotubes (MWCNT) is described; wherein commercially obtained PbS-QD of size 2.7 nm, stabilized by oleic acid, are added to a suspension of single- or multiwalled carbon nanotubes (CNT) prefunctionalized noncovalently with 1,2-benzenedimethanethiol (1,2-BDMT) in ethanol. The aromatic part of 1,2-BDMT attaches to the CNT by π-π stacking interactions, noncovalently functionalizing the CNT. The thiol part of the 1,2-BDMT on the functionalized CNT replaces oleic acid on the surface of the QD facilitating the noncovalent attachment of the QD to the CNT. The composites were characterized by TEM and FTIR spectroscopy. Quenching of NIR fluorescence of the PbS-QD on attachment to the carbon nanotubes (CNT) was observed, indicating FRET from the QD to the CNT. |
| format | Article |
| id | doaj-art-0c039b39b32a449783c48726f71cf6fb |
| institution | Kabale University |
| issn | 1687-9503 1687-9511 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-0c039b39b32a449783c48726f71cf6fb2025-02-03T07:23:52ZengWileyJournal of Nanotechnology1687-95031687-95112014-01-01201410.1155/2014/285857285857Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon NanotubesAnirban Das0Eric Hall1Chien M. Wai2Department of Chemistry, University of Idaho, Renfrew Hall, Moscow, ID 83844, USADepartment of Chemistry, University of Idaho, Renfrew Hall, Moscow, ID 83844, USADepartment of Chemistry, University of Idaho, Renfrew Hall, Moscow, ID 83844, USAAttachment of PbS quantum dots (QD) to single-walled carbon nanotubes (SWNT) and multiwalled carbon nanotubes (MWCNT) is described; wherein commercially obtained PbS-QD of size 2.7 nm, stabilized by oleic acid, are added to a suspension of single- or multiwalled carbon nanotubes (CNT) prefunctionalized noncovalently with 1,2-benzenedimethanethiol (1,2-BDMT) in ethanol. The aromatic part of 1,2-BDMT attaches to the CNT by π-π stacking interactions, noncovalently functionalizing the CNT. The thiol part of the 1,2-BDMT on the functionalized CNT replaces oleic acid on the surface of the QD facilitating the noncovalent attachment of the QD to the CNT. The composites were characterized by TEM and FTIR spectroscopy. Quenching of NIR fluorescence of the PbS-QD on attachment to the carbon nanotubes (CNT) was observed, indicating FRET from the QD to the CNT.http://dx.doi.org/10.1155/2014/285857 |
| spellingShingle | Anirban Das Eric Hall Chien M. Wai Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes Journal of Nanotechnology |
| title | Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes |
| title_full | Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes |
| title_fullStr | Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes |
| title_full_unstemmed | Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes |
| title_short | Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes |
| title_sort | noncovalent attachment of pbs quantum dots to single and multiwalled carbon nanotubes |
| url | http://dx.doi.org/10.1155/2014/285857 |
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