CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting Nanoparticles

In this paper, the study of surface modification of two-dimensional (2D), non-luminescent CdS nanoplates (NPLs) by thiol-containing ligands is presented. We show that a process of twophase transfers with appropriate ligand exchange transforms non-luminescent NPLs into spherical CdS nanoparticles (NP...

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Main Authors: Anna Lesiak, Mateusz Banski, Hanna Woznica, Andrzej Żak, Joanna Cabaj, Artur Podhorodecki
Format: Article
Language:English
Published: MDPI AG 2021-06-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/22/12/6477
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spelling doaj-86c9d1c62c434defb1221473bfb7f23b2021-07-01T00:23:20ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672021-06-01226477647710.3390/ijms22126477CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting NanoparticlesAnna Lesiak0Mateusz Banski1Hanna Woznica2Andrzej Żak3Joanna Cabaj4Artur Podhorodecki5Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50–370 Wroclaw, PolandFaculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50–370 Wroclaw, PolandFaculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50–370 Wroclaw, PolandElectron Microscopy Laboratory, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50–370 Wroclaw, PolandFaculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50–370 Wroclaw, PolandFaculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50–370 Wroclaw, PolandIn this paper, the study of surface modification of two-dimensional (2D), non-luminescent CdS nanoplates (NPLs) by thiol-containing ligands is presented. We show that a process of twophase transfers with appropriate ligand exchange transforms non-luminescent NPLs into spherical CdS nanoparticles (NPs) exhibiting a blue photoluminescence with exceptionally high quantum yield ~90%. In the process, transfer from inorganic solvent to water is performed, with appropriately selected ligand molecules and pH values (forward phase transfer), which produces NPs with modified size and shape. Then, in reverse phase transfer, NPs are transferred back to toluene due to surface modification by combined Cd (OL)<sub>2</sub> and Cd (Ac)<sub>2</sub>. As a result, spherical NPs are formed (average diameter between 4 and 6 nm) with PL QY as high as 90%. This is unique for core only CdS NPs without inorganic shell.https://www.mdpi.com/1422-0067/22/12/64773-mercaptopropionic acidblue emitting quantum dots<span style="font-variant: small-caps">d</span>-penicillamineligand exchangeCdS nanoplateletsphase transfer
collection DOAJ
language English
format Article
sources DOAJ
author Anna Lesiak
Mateusz Banski
Hanna Woznica
Andrzej Żak
Joanna Cabaj
Artur Podhorodecki
spellingShingle Anna Lesiak
Mateusz Banski
Hanna Woznica
Andrzej Żak
Joanna Cabaj
Artur Podhorodecki
CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting Nanoparticles
International Journal of Molecular Sciences
3-mercaptopropionic acid
blue emitting quantum dots
<span style="font-variant: small-caps">d</span>-penicillamine
ligand exchange
CdS nanoplatelets
phase transfer
author_facet Anna Lesiak
Mateusz Banski
Hanna Woznica
Andrzej Żak
Joanna Cabaj
Artur Podhorodecki
author_sort Anna Lesiak
title CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting Nanoparticles
title_short CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting Nanoparticles
title_full CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting Nanoparticles
title_fullStr CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting Nanoparticles
title_full_unstemmed CdS Nanoplates Modification as a Platform for Synthesis of Blue-Emitting Nanoparticles
title_sort cds nanoplates modification as a platform for synthesis of blue-emitting nanoparticles
publisher MDPI AG
series International Journal of Molecular Sciences
issn 1661-6596
1422-0067
publishDate 2021-06-01
description In this paper, the study of surface modification of two-dimensional (2D), non-luminescent CdS nanoplates (NPLs) by thiol-containing ligands is presented. We show that a process of twophase transfers with appropriate ligand exchange transforms non-luminescent NPLs into spherical CdS nanoparticles (NPs) exhibiting a blue photoluminescence with exceptionally high quantum yield ~90%. In the process, transfer from inorganic solvent to water is performed, with appropriately selected ligand molecules and pH values (forward phase transfer), which produces NPs with modified size and shape. Then, in reverse phase transfer, NPs are transferred back to toluene due to surface modification by combined Cd (OL)<sub>2</sub> and Cd (Ac)<sub>2</sub>. As a result, spherical NPs are formed (average diameter between 4 and 6 nm) with PL QY as high as 90%. This is unique for core only CdS NPs without inorganic shell.
topic 3-mercaptopropionic acid
blue emitting quantum dots
<span style="font-variant: small-caps">d</span>-penicillamine
ligand exchange
CdS nanoplatelets
phase transfer
url https://www.mdpi.com/1422-0067/22/12/6477
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