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Understanding the Role of Surface Capping Ligands in Passivating the Quantum Dots Using Copper Dopants as Internal Sensor

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dc.contributor.author Grandhi, G. Krishnamurthy
dc.contributor.author Arunkumar, M.
dc.contributor.author Viswanatha, Ranjani
dc.date.accessioned 2017-01-24T06:37:27Z
dc.date.available 2017-01-24T06:37:27Z
dc.date.issued 2016
dc.identifier.citation Grandhi, G. K.; Arunkumar, M.; Viswanatha, R., Understanding the Role of Surface Capping Ligands in Passivating the Quantum Dots Using Copper Dopants as Internal Sensor. Journal of Physical Chemistry C 2016, 120 (35), 19785-19795 http://dx.doi.org/10.1021/acs.jpcc.6b04060 en_US
dc.identifier.citation Journal of Physical Chemistry C en_US
dc.identifier.citation 120 en_US
dc.identifier.citation 35 en_US
dc.identifier.issn 1932-7447
dc.identifier.uri https://libjncir.jncasr.ac.in/xmlui/10572/2220
dc.description Restricted Access en_US
dc.description.abstract The role of ligands in passivating quanturri has been-studied in this work using Cu doping as internal sensors, This has been elucidated using the example of dodecanethiol, 3-mercaptopropionic acid, trioctylphosphine, trioctylphosphine oxide, and primary amines for the passivation of CdSe quantum dots by exchanging the original ligands. Steady state and,time dependent photoluminescence spectra of the Cu emission-have provided the basis for determining the role of ligands. The surface of the quantum dots with ligand exchange has been Monitored using nuclear magnetic resonance spectroscopy, The results suggest that the presence of trioctylphosphine, trioctylphosphine oxide, and oleylamine ligands on CdSe quantum dot surface lead to better photoluminescence efficiency. Further, increase in the chain length of the primary amines increases the effectiveness of passivation on the CdSe quantum dot surface. We have also extended this method to the study of oleylamine capping in CdS quantum dots. en_US
dc.description.uri http://dx.doi.org/10.1021/acs.jpcc.6b04060 en_US
dc.language.iso English en_US
dc.publisher American Chemical Society en_US
dc.rights @American Chemical Society, 2016 en_US
dc.subject Chemistry en_US
dc.subject Materials Science en_US
dc.subject Magnetic-Resonance-Spectroscopy en_US
dc.subject Metal Sulfide Nanocrystals en_US
dc.subject Cdse Nanocrystals en_US
dc.subject Semiconductor Nanocrystals en_US
dc.subject Electronic-Structure en_US
dc.subject Core/Shell Nanocrystals en_US
dc.subject Colloidal Nanocrystals en_US
dc.subject Cdte Nanocrystals en_US
dc.subject Phase-Transfer en_US
dc.subject Growth en_US
dc.title Understanding the Role of Surface Capping Ligands in Passivating the Quantum Dots Using Copper Dopants as Internal Sensor en_US
dc.type Article en_US


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