Mist fabrication of light emitting diodes with colloidal nanocrystal quantum dots

T. Zhu; K. Shanmugasundaram; S. C. Price; J. Ruzyllo; F. Zhang; J. Xu; S. E. Mohney; Q. Zhang; A. Y. Wang

doi:10.1063/1.2834734

Mist fabrication of light emitting diodes with colloidal nanocrystal quantum dots

T. Zhu
, K. Shanmugasundaram
, S. C. Price
, J. Ruzyllo
, F. Zhang
, J. Xu
, S. E. Mohney
, Q. Zhang
, A. Y. Wang

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

84 Scopus citations

Abstract

In this letter, we report a mist-deposition process for the assembly and patterning of nanocrystal quantum dots (NQDs) during the fabrication of quantum dot light emitting diodes (QD-LEDs), which allows for tight controls over the thickness, surface morphology, composition, and resolution of NQD emissive layers. A defect-free featuring uniform brightness QD-LED containing a mist-deposited emissive CdSe(ZnS) NQD layer was demonstrated. Additionally, the technique of successive mist deposition of multicolor NQDs through a set of registered shallow masks was employed to create a 6×6 matrix of alternating pixels composed of 5 nm diameter CdSe(ZnS) NQDs (green) and 8 nm diameter CdSe(ZnS) NQDs (red) on the same substrate. The results obtained demonstrate the potential of mist-deposition technology in the future development of full-color QD-LED displays.

Original language	English (US)
Article number	023111
Journal	Applied Physics Letters
Volume	92
Issue number	2
DOIs	https://doi.org/10.1063/1.2834734
State	Published - 2008

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2834734

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@article{0520f80bab234ed7ada4c50e0cc39a7a,

title = "Mist fabrication of light emitting diodes with colloidal nanocrystal quantum dots",

abstract = "In this letter, we report a mist-deposition process for the assembly and patterning of nanocrystal quantum dots (NQDs) during the fabrication of quantum dot light emitting diodes (QD-LEDs), which allows for tight controls over the thickness, surface morphology, composition, and resolution of NQD emissive layers. A defect-free featuring uniform brightness QD-LED containing a mist-deposited emissive CdSe(ZnS) NQD layer was demonstrated. Additionally, the technique of successive mist deposition of multicolor NQDs through a set of registered shallow masks was employed to create a 6×6 matrix of alternating pixels composed of 5 nm diameter CdSe(ZnS) NQDs (green) and 8 nm diameter CdSe(ZnS) NQDs (red) on the same substrate. The results obtained demonstrate the potential of mist-deposition technology in the future development of full-color QD-LED displays.",

author = "T. Zhu and K. Shanmugasundaram and Price, \{S. C.\} and J. Ruzyllo and F. Zhang and J. Xu and Mohney, \{S. E.\} and Q. Zhang and Wang, \{A. Y.\}",

note = "Funding Information: The work at the Pennsylvania State University was supported by the National Science Foundation under Grant No. CMMI-0729263 and Army Research Office under Grant No. DAAD19-02-D-0001, and that at Ocean NanoTech LLC. is supported by the National Science Foundation under Grant No. 0638209. Q.Z. and S.E.M. are grateful to the NSF NNIN through Grant No. 0335765 for operation of the TEM facility and ARO W911NF0510334 for partial financial support. J.R. and J.X. would like to thank Primaxx, Inc. for providing the tool used in this study.",

year = "2008",

doi = "10.1063/1.2834734",

language = "English (US)",

volume = "92",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "2",

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TY - JOUR

T1 - Mist fabrication of light emitting diodes with colloidal nanocrystal quantum dots

AU - Zhu, T.

AU - Shanmugasundaram, K.

AU - Price, S. C.

AU - Ruzyllo, J.

AU - Zhang, F.

AU - Xu, J.

AU - Mohney, S. E.

AU - Zhang, Q.

AU - Wang, A. Y.

N1 - Funding Information: The work at the Pennsylvania State University was supported by the National Science Foundation under Grant No. CMMI-0729263 and Army Research Office under Grant No. DAAD19-02-D-0001, and that at Ocean NanoTech LLC. is supported by the National Science Foundation under Grant No. 0638209. Q.Z. and S.E.M. are grateful to the NSF NNIN through Grant No. 0335765 for operation of the TEM facility and ARO W911NF0510334 for partial financial support. J.R. and J.X. would like to thank Primaxx, Inc. for providing the tool used in this study.

PY - 2008

Y1 - 2008

N2 - In this letter, we report a mist-deposition process for the assembly and patterning of nanocrystal quantum dots (NQDs) during the fabrication of quantum dot light emitting diodes (QD-LEDs), which allows for tight controls over the thickness, surface morphology, composition, and resolution of NQD emissive layers. A defect-free featuring uniform brightness QD-LED containing a mist-deposited emissive CdSe(ZnS) NQD layer was demonstrated. Additionally, the technique of successive mist deposition of multicolor NQDs through a set of registered shallow masks was employed to create a 6×6 matrix of alternating pixels composed of 5 nm diameter CdSe(ZnS) NQDs (green) and 8 nm diameter CdSe(ZnS) NQDs (red) on the same substrate. The results obtained demonstrate the potential of mist-deposition technology in the future development of full-color QD-LED displays.

AB - In this letter, we report a mist-deposition process for the assembly and patterning of nanocrystal quantum dots (NQDs) during the fabrication of quantum dot light emitting diodes (QD-LEDs), which allows for tight controls over the thickness, surface morphology, composition, and resolution of NQD emissive layers. A defect-free featuring uniform brightness QD-LED containing a mist-deposited emissive CdSe(ZnS) NQD layer was demonstrated. Additionally, the technique of successive mist deposition of multicolor NQDs through a set of registered shallow masks was employed to create a 6×6 matrix of alternating pixels composed of 5 nm diameter CdSe(ZnS) NQDs (green) and 8 nm diameter CdSe(ZnS) NQDs (red) on the same substrate. The results obtained demonstrate the potential of mist-deposition technology in the future development of full-color QD-LED displays.

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JO - Applied Physics Letters

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Mist fabrication of light emitting diodes with colloidal nanocrystal quantum dots

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