Degradation studies of colloidal quantum dot light-emitting diodes

Jie Liu, Chuang Xie, Yu Zhang, Wenjia Hu, Shawn Pickering, Guanjun You, Andrew Y. Wang, Jian Xu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The degradation mechanism of CdSe/ZnS quantum dots (QDs) light-emitting diodes (LEDs) was investigated with steady-state and time-resolved photoluminescence measurements. Our study reveals that the degradation is associated with the decreasing quantum efficiency of the CdSe/ZnS QDs in the devices. Two mechanisms that cause the efficiency reduction were verified in the experiments: i.e., thermal instability and luminescence quenching.

Original languageEnglish (US)
Title of host publicationMolecular and Hybrid Materials for Electronics and Photonics
Pages152-157
Number of pages6
DOIs
StatePublished - Dec 1 2011
Event2010 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 29 2010Dec 3 2010

Publication series

NameMaterials Research Society Symposium Proceedings
Volume1286
ISSN (Print)0272-9172

Other

Other2010 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/29/1012/3/10

Fingerprint

Semiconductor quantum dots
Light emitting diodes
light emitting diodes
quantum dots
degradation
Degradation
thermal instability
Quantum efficiency
Luminescence
quantum efficiency
Quenching
Photoluminescence
quenching
luminescence
photoluminescence
causes
Experiments
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Liu, J., Xie, C., Zhang, Y., Hu, W., Pickering, S., You, G., ... Xu, J. (2011). Degradation studies of colloidal quantum dot light-emitting diodes. In Molecular and Hybrid Materials for Electronics and Photonics (pp. 152-157). (Materials Research Society Symposium Proceedings; Vol. 1286). https://doi.org/10.1557/opl.2011.335
Liu, Jie ; Xie, Chuang ; Zhang, Yu ; Hu, Wenjia ; Pickering, Shawn ; You, Guanjun ; Wang, Andrew Y. ; Xu, Jian. / Degradation studies of colloidal quantum dot light-emitting diodes. Molecular and Hybrid Materials for Electronics and Photonics. 2011. pp. 152-157 (Materials Research Society Symposium Proceedings).
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abstract = "The degradation mechanism of CdSe/ZnS quantum dots (QDs) light-emitting diodes (LEDs) was investigated with steady-state and time-resolved photoluminescence measurements. Our study reveals that the degradation is associated with the decreasing quantum efficiency of the CdSe/ZnS QDs in the devices. Two mechanisms that cause the efficiency reduction were verified in the experiments: i.e., thermal instability and luminescence quenching.",
author = "Jie Liu and Chuang Xie and Yu Zhang and Wenjia Hu and Shawn Pickering and Guanjun You and Wang, {Andrew Y.} and Jian Xu",
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Liu, J, Xie, C, Zhang, Y, Hu, W, Pickering, S, You, G, Wang, AY & Xu, J 2011, Degradation studies of colloidal quantum dot light-emitting diodes. in Molecular and Hybrid Materials for Electronics and Photonics. Materials Research Society Symposium Proceedings, vol. 1286, pp. 152-157, 2010 MRS Fall Meeting, Boston, MA, United States, 11/29/10. https://doi.org/10.1557/opl.2011.335

Degradation studies of colloidal quantum dot light-emitting diodes. / Liu, Jie; Xie, Chuang; Zhang, Yu; Hu, Wenjia; Pickering, Shawn; You, Guanjun; Wang, Andrew Y.; Xu, Jian.

Molecular and Hybrid Materials for Electronics and Photonics. 2011. p. 152-157 (Materials Research Society Symposium Proceedings; Vol. 1286).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Liu J, Xie C, Zhang Y, Hu W, Pickering S, You G et al. Degradation studies of colloidal quantum dot light-emitting diodes. In Molecular and Hybrid Materials for Electronics and Photonics. 2011. p. 152-157. (Materials Research Society Symposium Proceedings). https://doi.org/10.1557/opl.2011.335