Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application

Abstract A novel electrohydrodynamic (EHD) electrospray coating mechanism was proposed for the continuous fabrication of large-area quantum dot (QD) thin films for high-performance light-emitting diodes (LEDs). The size of QD droplets was systemically controlled using the stable EHD electrospray mod...

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Autores principales:	Tuan Canh Nguyen, Woon-Seop Choi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9361c6a487734cf7b87eec998feeaac8
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spelling	oai:doaj.org-article:9361c6a487734cf7b87eec998feeaac82021-12-02T15:39:58ZElectrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application10.1038/s41598-020-67867-w2045-2322https://doaj.org/article/9361c6a487734cf7b87eec998feeaac82020-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-67867-whttps://doaj.org/toc/2045-2322Abstract A novel electrohydrodynamic (EHD) electrospray coating mechanism was proposed for the continuous fabrication of large-area quantum dot (QD) thin films for high-performance light-emitting diodes (LEDs). The size of QD droplets was systemically controlled using the stable EHD electrospray mode from a mixed solvent, which is a crucial factor for the formation of large and smooth QD thin films. The minimum amount of material consumption was achieved during the process by applying the unique coating system. A QD-LED device based on electrodeposited QDs showed a maximum luminance of 12,082 cd m−2, maximum current efficiency of nearly 4.0 cd A−1, and maximum EQE of 1.86%. This system demonstrates not only high reproducibility but could also pave the way for commercializing high-quality QD-LED devices.Tuan Canh NguyenWoon-Seop ChoiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-9 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tuan Canh Nguyen Woon-Seop Choi Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application
description	Abstract A novel electrohydrodynamic (EHD) electrospray coating mechanism was proposed for the continuous fabrication of large-area quantum dot (QD) thin films for high-performance light-emitting diodes (LEDs). The size of QD droplets was systemically controlled using the stable EHD electrospray mode from a mixed solvent, which is a crucial factor for the formation of large and smooth QD thin films. The minimum amount of material consumption was achieved during the process by applying the unique coating system. A QD-LED device based on electrodeposited QDs showed a maximum luminance of 12,082 cd m−2, maximum current efficiency of nearly 4.0 cd A−1, and maximum EQE of 1.86%. This system demonstrates not only high reproducibility but could also pave the way for commercializing high-quality QD-LED devices.
format	article
author	Tuan Canh Nguyen Woon-Seop Choi
author_facet	Tuan Canh Nguyen Woon-Seop Choi
author_sort	Tuan Canh Nguyen
title	Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application
title_short	Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application
title_full	Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application
title_fullStr	Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application
title_full_unstemmed	Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application
title_sort	electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/9361c6a487734cf7b87eec998feeaac8
work_keys_str_mv	AT tuancanhnguyen electrospraymechanismforquantumdotthinfilmformationusinganelectrohydrodynamicjetandlightemittingdeviceapplication AT woonseopchoi electrospraymechanismforquantumdotthinfilmformationusinganelectrohydrodynamicjetandlightemittingdeviceapplication
_version_	1718385886780981248

Electrospray mechanism for quantum dot thin-film formation using an electrohydrodynamic jet and light-emitting device application

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