Facile and versatile ligand analysis method of colloidal quantum dot

Abstract Colloidal quantum-dots (QDs) are highly attractive materials for various optoelectronic applications owing to their easy maneuverability, high functionality, wide applicability, and low cost of mass-production. QDs usually consist of two components: the inorganic nano-crystalline particle a...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jin Hae Kim, Hyokeun Park, Tae-Gon Kim, Hyunmi Lee, Shinae Jun, Eunha Lee, Woo Sung Jeon, Jaegwan Chung, In-Sun Jung
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/fdb6a7489cea4760b926ded65400cd75
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:fdb6a7489cea4760b926ded65400cd75
record_format	dspace
spelling	oai:doaj.org-article:fdb6a7489cea4760b926ded65400cd752021-12-02T18:37:11ZFacile and versatile ligand analysis method of colloidal quantum dot10.1038/s41598-021-99358-x2045-2322https://doaj.org/article/fdb6a7489cea4760b926ded65400cd752021-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-99358-xhttps://doaj.org/toc/2045-2322Abstract Colloidal quantum-dots (QDs) are highly attractive materials for various optoelectronic applications owing to their easy maneuverability, high functionality, wide applicability, and low cost of mass-production. QDs usually consist of two components: the inorganic nano-crystalline particle and organic ligands that passivate the surface of the inorganic particle. The organic component is also critical for tuning electronic properties of QDs as well as solubilizing QDs in various solvents. However, despite extensive effort to understand the chemistry of ligands, it has been challenging to develop an efficient and reliable method for identifying and quantifying ligands on the QD surface. Herein, we developed a novel method of analyzing ligands in a mild yet accurate fashion. We found that oxidizing agents, as a heterogeneous catalyst in a different phase from QDs, can efficiently disrupt the interaction between the inorganic particle and organic ligands, and the subsequent simple phase fractionation step can isolate the ligand-containing phase from the oxidizer-containing phase and the insoluble precipitates. Our novel analysis procedure ensures to minimize the exposure of ligand molecules to oxidizing agents as well as to prepare homogeneous samples that can be readily analyzed by diverse analytical techniques, such as nuclear magnetic resonance spectroscopy and gas-chromatography mass-spectrometry.Jin Hae KimHyokeun ParkTae-Gon KimHyunmi LeeShinae JunEunha LeeWoo Sung JeonJaegwan ChungIn-Sun JungNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jin Hae Kim Hyokeun Park Tae-Gon Kim Hyunmi Lee Shinae Jun Eunha Lee Woo Sung Jeon Jaegwan Chung In-Sun Jung Facile and versatile ligand analysis method of colloidal quantum dot
description	Abstract Colloidal quantum-dots (QDs) are highly attractive materials for various optoelectronic applications owing to their easy maneuverability, high functionality, wide applicability, and low cost of mass-production. QDs usually consist of two components: the inorganic nano-crystalline particle and organic ligands that passivate the surface of the inorganic particle. The organic component is also critical for tuning electronic properties of QDs as well as solubilizing QDs in various solvents. However, despite extensive effort to understand the chemistry of ligands, it has been challenging to develop an efficient and reliable method for identifying and quantifying ligands on the QD surface. Herein, we developed a novel method of analyzing ligands in a mild yet accurate fashion. We found that oxidizing agents, as a heterogeneous catalyst in a different phase from QDs, can efficiently disrupt the interaction between the inorganic particle and organic ligands, and the subsequent simple phase fractionation step can isolate the ligand-containing phase from the oxidizer-containing phase and the insoluble precipitates. Our novel analysis procedure ensures to minimize the exposure of ligand molecules to oxidizing agents as well as to prepare homogeneous samples that can be readily analyzed by diverse analytical techniques, such as nuclear magnetic resonance spectroscopy and gas-chromatography mass-spectrometry.
format	article
author	Jin Hae Kim Hyokeun Park Tae-Gon Kim Hyunmi Lee Shinae Jun Eunha Lee Woo Sung Jeon Jaegwan Chung In-Sun Jung
author_facet	Jin Hae Kim Hyokeun Park Tae-Gon Kim Hyunmi Lee Shinae Jun Eunha Lee Woo Sung Jeon Jaegwan Chung In-Sun Jung
author_sort	Jin Hae Kim
title	Facile and versatile ligand analysis method of colloidal quantum dot
title_short	Facile and versatile ligand analysis method of colloidal quantum dot
title_full	Facile and versatile ligand analysis method of colloidal quantum dot
title_fullStr	Facile and versatile ligand analysis method of colloidal quantum dot
title_full_unstemmed	Facile and versatile ligand analysis method of colloidal quantum dot
title_sort	facile and versatile ligand analysis method of colloidal quantum dot
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/fdb6a7489cea4760b926ded65400cd75
work_keys_str_mv	AT jinhaekim facileandversatileligandanalysismethodofcolloidalquantumdot AT hyokeunpark facileandversatileligandanalysismethodofcolloidalquantumdot AT taegonkim facileandversatileligandanalysismethodofcolloidalquantumdot AT hyunmilee facileandversatileligandanalysismethodofcolloidalquantumdot AT shinaejun facileandversatileligandanalysismethodofcolloidalquantumdot AT eunhalee facileandversatileligandanalysismethodofcolloidalquantumdot AT woosungjeon facileandversatileligandanalysismethodofcolloidalquantumdot AT jaegwanchung facileandversatileligandanalysismethodofcolloidalquantumdot AT insunjung facileandversatileligandanalysismethodofcolloidalquantumdot
_version_	1718377839580938240

Facile and versatile ligand analysis method of colloidal quantum dot

Ejemplares similares