Conjugated assembly of colloidal zinc oxide quantum dots and multiwalled carbon nanotubes for an excellent photosensitive ultraviolet photodetector

2016 ◽  
Vol 27 (35) ◽  
pp. 355204 ◽  
Author(s):  
Buddha Deka Boruah ◽  
Abha Misra
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Zinc Oxide ◽  
Multiwalled Carbon Nanotubes ◽  
Ultraviolet Photodetector ◽  
Multiwalled Carbon

scholarly journals Noncovalent Attachment of PbS Quantum Dots to Single- and Multiwalled Carbon Nanotubes

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Anirban Das ◽  
Eric Hall ◽  
Chien M. Wai
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Oleic Acid ◽  
Multiwalled Carbon Nanotubes ◽  
Single Walled Carbon Nanotubes ◽  
Stacking Interactions ◽  
Multiwalled Carbon ◽  
Nir Fluorescence ◽  
Walled Carbon Nanotubes ◽  
Pbs Quantum Dots

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 byπ-πstacking 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.

Multiwalled carbon nanotubes–zinc oxide nanocomposites as low temperature toluene gas sensor

2017 ◽  
Vol 123 (3) ◽  
Author(s):  
Ni Luh Wulan Septiani ◽  
Brian Yuliarto ◽  
Nugraha ◽  
Hermawan Kresno Dipojono
Keyword(s):  
Carbon Nanotubes ◽  
Zinc Oxide ◽  
Low Temperature ◽  
Gas Sensor ◽  
Multiwalled Carbon Nanotubes ◽  
Multiwalled Carbon
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