Electroluminescence from monolayer of quantum dots formed by multiple dip-coating processes

Chang Lyoul Lee; Sung Wook Nam; Viena Kim; Jang Joo Kim; Ki Bum Kim

doi:10.1002/pssb.200880609

Electroluminescence from monolayer of quantum dots formed by multiple dip-coating processes

Chang Lyoul Lee, Sung Wook Nam, Viena Kim, Jang Joo Kim, Ki Bum Kim

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8 Scopus citations

Abstract

The monolayer of 4.3 nm-size CdSe(ZnS) core-shell quantum dots (QDs) was formed by multiple dip-coating processes to fabricate the electroluminescent device. The particle adsorption was found to depend on both the substrate and the dipping number. The surface coverage was about 73% on PEDOT and 40% on PVK substrate, respectively. Selfassembled monolayer of QDs showed the hexagonal closepacked array by the van der Waals attraction between QDs. The monolayer quantum dots based organic (polymer) light emitting diodes (QD-O(P)LEDs) showed the maximum external quantum efficiency (η_ex) of 0.05% and luminous power efficiency (η_p) of 0.45 lm/W in the structure of ITO/ PEDOT(40 nm)/PVK(40 nm)/CdSe(ZnS) QDs/BCP(30 nm)/Alq₃(30 nm)/Mg:Ag/Ag.

Original language	English
Pages (from-to)	803-807
Number of pages	5
Journal	Physica Status Solidi (B): Basic Research
Volume	246
Issue number	4
DOIs	https://doi.org/10.1002/pssb.200880609
State	Published - Apr 2009

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title = "Electroluminescence from monolayer of quantum dots formed by multiple dip-coating processes",

abstract = "The monolayer of 4.3 nm-size CdSe(ZnS) core-shell quantum dots (QDs) was formed by multiple dip-coating processes to fabricate the electroluminescent device. The particle adsorption was found to depend on both the substrate and the dipping number. The surface coverage was about 73\% on PEDOT and 40\% on PVK substrate, respectively. Selfassembled monolayer of QDs showed the hexagonal closepacked array by the van der Waals attraction between QDs. The monolayer quantum dots based organic (polymer) light emitting diodes (QD-O(P)LEDs) showed the maximum external quantum efficiency (ηex) of 0.05\% and luminous power efficiency (ηp) of 0.45 lm/W in the structure of ITO/ PEDOT(40 nm)/PVK(40 nm)/CdSe(ZnS) QDs/BCP(30 nm)/Alq3(30 nm)/Mg:Ag/Ag.",

author = "Lee, \{Chang Lyoul\} and Nam, \{Sung Wook\} and Viena Kim and Kim, \{Jang Joo\} and Kim, \{Ki Bum\}",

year = "2009",

month = apr,

doi = "10.1002/pssb.200880609",

language = "English",

volume = "246",

pages = "803--807",

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T1 - Electroluminescence from monolayer of quantum dots formed by multiple dip-coating processes

AU - Lee, Chang Lyoul

AU - Nam, Sung Wook

AU - Kim, Viena

AU - Kim, Jang Joo

AU - Kim, Ki Bum

PY - 2009/4

Y1 - 2009/4

N2 - The monolayer of 4.3 nm-size CdSe(ZnS) core-shell quantum dots (QDs) was formed by multiple dip-coating processes to fabricate the electroluminescent device. The particle adsorption was found to depend on both the substrate and the dipping number. The surface coverage was about 73% on PEDOT and 40% on PVK substrate, respectively. Selfassembled monolayer of QDs showed the hexagonal closepacked array by the van der Waals attraction between QDs. The monolayer quantum dots based organic (polymer) light emitting diodes (QD-O(P)LEDs) showed the maximum external quantum efficiency (ηex) of 0.05% and luminous power efficiency (ηp) of 0.45 lm/W in the structure of ITO/ PEDOT(40 nm)/PVK(40 nm)/CdSe(ZnS) QDs/BCP(30 nm)/Alq3(30 nm)/Mg:Ag/Ag.

AB - The monolayer of 4.3 nm-size CdSe(ZnS) core-shell quantum dots (QDs) was formed by multiple dip-coating processes to fabricate the electroluminescent device. The particle adsorption was found to depend on both the substrate and the dipping number. The surface coverage was about 73% on PEDOT and 40% on PVK substrate, respectively. Selfassembled monolayer of QDs showed the hexagonal closepacked array by the van der Waals attraction between QDs. The monolayer quantum dots based organic (polymer) light emitting diodes (QD-O(P)LEDs) showed the maximum external quantum efficiency (ηex) of 0.05% and luminous power efficiency (ηp) of 0.45 lm/W in the structure of ITO/ PEDOT(40 nm)/PVK(40 nm)/CdSe(ZnS) QDs/BCP(30 nm)/Alq3(30 nm)/Mg:Ag/Ag.

UR - https://www.scopus.com/pages/publications/70449345826

U2 - 10.1002/pssb.200880609

DO - 10.1002/pssb.200880609

M3 - Article

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SN - 0370-1972

VL - 246

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EP - 807

JO - Physica Status Solidi (B): Basic Research

JF - Physica Status Solidi (B): Basic Research

IS - 4

ER -

Electroluminescence from monolayer of quantum dots formed by multiple dip-coating processes

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