Construction of Ag-doped Zn-In-S quantum dots toward white LEDs and 3D luminescent patterning

Qiu Hong Zhang; Yu Tian; Cai Feng Wang; Su Chen

doi:10.1039/c6ra05689j

Construction of Ag-doped Zn-In-S quantum dots toward white LEDs and 3D luminescent patterning

Qiu Hong Zhang, Yu Tian, Cai Feng Wang, Su Chen

College of Chemical Engineering

Nanjing Tech University

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

In this work, green-luminescent Ag-doped Zn-In-S quantum dots (Ag:Zn-In-S d-QDs) were successfully synthesized in oleylamine media with dodecanethiol via a one-pot noninjection synthetic strategy. The effect of Ag-doping concentration, reaction temperature, and reaction time on the photoluminescence (PL) properties of Ag:Zn-In-S d-QDs were systematically investigated. It is verified that green fluorescence of Ag:Zn-In-S d-QDs originates from the successful doping of Ag into the Zn-In-S host nanocrystals. ZnS shell was further coated on d-QDs to provide effective passivation, significantly improving the PL quantum yield from 7 to 28%. Then we employed 3D printing technology to achieve versatile low toxic fluorescent patterns towards anticounterfeit and optoelectronic applications for the first time. Also, Ag:Zn-In-S/ZnS d-QDs, as green phosphors, were used to fabricate a high-quality white light-emitting diode with a color rendering index of 90.3.

Original language	English
Pages (from-to)	47616-47622
Number of pages	7
Journal	RSC Advances
Volume	6
Issue number	53
DOIs	https://doi.org/10.1039/c6ra05689j
State	Published - 2016

Access to Document

10.1039/c6ra05689j

Cite this

@article{fe3990b151d347dd8b6af4c54e8cc9ed,

title = "Construction of Ag-doped Zn-In-S quantum dots toward white LEDs and 3D luminescent patterning",

abstract = "In this work, green-luminescent Ag-doped Zn-In-S quantum dots (Ag:Zn-In-S d-QDs) were successfully synthesized in oleylamine media with dodecanethiol via a one-pot noninjection synthetic strategy. The effect of Ag-doping concentration, reaction temperature, and reaction time on the photoluminescence (PL) properties of Ag:Zn-In-S d-QDs were systematically investigated. It is verified that green fluorescence of Ag:Zn-In-S d-QDs originates from the successful doping of Ag into the Zn-In-S host nanocrystals. ZnS shell was further coated on d-QDs to provide effective passivation, significantly improving the PL quantum yield from 7 to 28%. Then we employed 3D printing technology to achieve versatile low toxic fluorescent patterns towards anticounterfeit and optoelectronic applications for the first time. Also, Ag:Zn-In-S/ZnS d-QDs, as green phosphors, were used to fabricate a high-quality white light-emitting diode with a color rendering index of 90.3.",

author = "Zhang, {Qiu Hong} and Yu Tian and Wang, {Cai Feng} and Su Chen",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2016.",

year = "2016",

doi = "10.1039/c6ra05689j",

language = "英语",

volume = "6",

pages = "47616--47622",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

number = "53",

}

TY - JOUR

T1 - Construction of Ag-doped Zn-In-S quantum dots toward white LEDs and 3D luminescent patterning

AU - Zhang, Qiu Hong

AU - Tian, Yu

AU - Wang, Cai Feng

AU - Chen, Su

N1 - Publisher Copyright: © The Royal Society of Chemistry 2016.

PY - 2016

Y1 - 2016

N2 - In this work, green-luminescent Ag-doped Zn-In-S quantum dots (Ag:Zn-In-S d-QDs) were successfully synthesized in oleylamine media with dodecanethiol via a one-pot noninjection synthetic strategy. The effect of Ag-doping concentration, reaction temperature, and reaction time on the photoluminescence (PL) properties of Ag:Zn-In-S d-QDs were systematically investigated. It is verified that green fluorescence of Ag:Zn-In-S d-QDs originates from the successful doping of Ag into the Zn-In-S host nanocrystals. ZnS shell was further coated on d-QDs to provide effective passivation, significantly improving the PL quantum yield from 7 to 28%. Then we employed 3D printing technology to achieve versatile low toxic fluorescent patterns towards anticounterfeit and optoelectronic applications for the first time. Also, Ag:Zn-In-S/ZnS d-QDs, as green phosphors, were used to fabricate a high-quality white light-emitting diode with a color rendering index of 90.3.

AB - In this work, green-luminescent Ag-doped Zn-In-S quantum dots (Ag:Zn-In-S d-QDs) were successfully synthesized in oleylamine media with dodecanethiol via a one-pot noninjection synthetic strategy. The effect of Ag-doping concentration, reaction temperature, and reaction time on the photoluminescence (PL) properties of Ag:Zn-In-S d-QDs were systematically investigated. It is verified that green fluorescence of Ag:Zn-In-S d-QDs originates from the successful doping of Ag into the Zn-In-S host nanocrystals. ZnS shell was further coated on d-QDs to provide effective passivation, significantly improving the PL quantum yield from 7 to 28%. Then we employed 3D printing technology to achieve versatile low toxic fluorescent patterns towards anticounterfeit and optoelectronic applications for the first time. Also, Ag:Zn-In-S/ZnS d-QDs, as green phosphors, were used to fabricate a high-quality white light-emitting diode with a color rendering index of 90.3.

UR - http://www.scopus.com/inward/record.url?scp=84971011074&partnerID=8YFLogxK

U2 - 10.1039/c6ra05689j

DO - 10.1039/c6ra05689j

M3 - 文章

AN - SCOPUS:84971011074

SN - 2046-2069

VL - 6

SP - 47616

EP - 47622

JO - RSC Advances

JF - RSC Advances

IS - 53

ER -

Construction of Ag-doped Zn-In-S quantum dots toward white LEDs and 3D luminescent patterning

Abstract

Access to Document

Other files and links

Fingerprint

Cite this