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Indium phosphide-based quantum dots with shell-enhanced absorption for luminescent down-conversion

Dorian Dupont (UGent) , Mickaël Tessier (UGent) , Philippe Smet (UGent) and Zeger Hens (UGent)
(2017) ADVANCED MATERIALS. 29(29).
Author
Organization
Project
Center for nano- and biophotonics (NB-Photonics)
Abstract
It is shown that admixing small amounts of cadmium into the shell of InP/ZnSe core/shell quantum dots results in an increased absorption of blue light and a limited redshift of the band-edge emission. These effects reflect the reduced bandgap of (Zn,Cd) Se alloys and their smaller conduction-band offset with InP. Nevertheless, adjusting the InP core size enables InP/ZnSe and InP/(Zn,Cd) Se quantum dots with identical emission characteristics to be made. Processing both materials into remote phosphor disks, it is demonstrated that the shell-enhanced absorbance of InP/(Zn,Cd) Se has the double benefit of suppressing self-absorption and reducing the amount of quantum dots by weight needed to attain a given blue-to-red color conversion.
Keywords
indium phosphide, quantum dots, white-light emitting devices, LIGHT-EMITTING-DIODES, CDSE/CDS CORE/SHELL NANOCRYSTALS, INP/ZNS NANOCRYSTALS, POLYMER COMPOSITES, INP NANOCRYSTALS, EMISSION, GROWTH, BRIGHT, FILMS, ZNSE

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Citation

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Chicago
Dupont, Dorian, Mickaël Tessier, Philippe Smet, and Zeger Hens. 2017. “Indium Phosphide-based Quantum Dots with Shell-enhanced Absorption for Luminescent Down-conversion.” Advanced Materials 29 (29).
APA
Dupont, Dorian, Tessier, M., Smet, P., & Hens, Z. (2017). Indium phosphide-based quantum dots with shell-enhanced absorption for luminescent down-conversion. ADVANCED MATERIALS, 29(29).
Vancouver
1.
Dupont D, Tessier M, Smet P, Hens Z. Indium phosphide-based quantum dots with shell-enhanced absorption for luminescent down-conversion. ADVANCED MATERIALS. 2017;29(29).
MLA
Dupont, Dorian, Mickaël Tessier, Philippe Smet, et al. “Indium Phosphide-based Quantum Dots with Shell-enhanced Absorption for Luminescent Down-conversion.” ADVANCED MATERIALS 29.29 (2017): n. pag. Print.
@article{8539213,
  abstract     = {It is shown that admixing small amounts of cadmium into the shell of InP/ZnSe core/shell quantum dots results in an increased absorption of blue light and a limited redshift of the band-edge emission. These effects reflect the reduced bandgap of (Zn,Cd) Se alloys and their smaller conduction-band offset with InP. Nevertheless, adjusting the InP core size enables InP/ZnSe and InP/(Zn,Cd) Se quantum dots with identical emission characteristics to be made. Processing both materials into remote phosphor disks, it is demonstrated that the shell-enhanced absorbance of InP/(Zn,Cd) Se has the double benefit of suppressing self-absorption and reducing the amount of quantum dots by weight needed to attain a given blue-to-red color conversion.},
  articleno    = {1700686},
  author       = {Dupont, Dorian and Tessier, Micka{\"e}l and Smet, Philippe and Hens, Zeger},
  isbn         = {0935-9648},
  journal      = {ADVANCED MATERIALS},
  keyword      = {indium phosphide,quantum dots,white-light emitting devices,LIGHT-EMITTING-DIODES,CDSE/CDS CORE/SHELL NANOCRYSTALS,INP/ZNS NANOCRYSTALS,POLYMER COMPOSITES,INP NANOCRYSTALS,EMISSION,GROWTH,BRIGHT,FILMS,ZNSE},
  language     = {eng},
  number       = {29},
  pages        = {6},
  title        = {Indium phosphide-based quantum dots with shell-enhanced absorption for luminescent down-conversion},
  url          = {http://dx.doi.org/10.1002/adma.201700686},
  volume       = {29},
  year         = {2017},
}
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