Laser-assisted forward transfer of multi-spectral nanocrystal quantum dot emitters

Jian Xu, Justin Liu, Dehu Cui, Michael Gerhold, Andrew Y. Wang, Matthias Nagel, Thomas K. Lippert

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

We report in this paper the development of a novel laser-transfer scheme to integrate laterally arrays of light-emitting pixels made of semiconductor nanocrystal quantum dots (NQDs). The nanocrystal composition and size can be tailored such that the luminescence emission of the quantum dots in each device pixel constitutes a distinctive spectral channel of narrow bandwidth. An ultrathin film of photosensitive triazene polymer (TP) has been employed as the sacrificial layer whose decomposition upon UV excitation delivers the bilayer structure of nanocrystal and metal films to the substrates. The ejected plume of the decomposed photosensitive polymer produces a thrust force to ensure the conformal contacts between the NQD layer and the bottom hole transport layer. A 6 × 6red and yellow matrix with pixel sizes of 800νm is demonstrated. This technique opens up the possibility of developing small, on-chip light sources featured with multiple wavelength channels over a desired spectral range as well as the flexible substratum.

Original languageEnglish (US)
Article number025403
JournalNanotechnology
Volume18
Issue number2
DOIs
StatePublished - Jan 17 2007

Fingerprint

Nanocrystals
Semiconductor quantum dots
Lasers
Pixels
Polymers
Triazenes
Ultrathin films
Light sources
Luminescence
Metals
Semiconductor materials
Decomposition
Bandwidth
Wavelength
Substrates
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Cite this

Xu, J., Liu, J., Cui, D., Gerhold, M., Wang, A. Y., Nagel, M., & Lippert, T. K. (2007). Laser-assisted forward transfer of multi-spectral nanocrystal quantum dot emitters. Nanotechnology, 18(2), [025403]. https://doi.org/10.1088/0957-4484/18/2/025403
Xu, Jian ; Liu, Justin ; Cui, Dehu ; Gerhold, Michael ; Wang, Andrew Y. ; Nagel, Matthias ; Lippert, Thomas K. / Laser-assisted forward transfer of multi-spectral nanocrystal quantum dot emitters. In: Nanotechnology. 2007 ; Vol. 18, No. 2.
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Xu, J, Liu, J, Cui, D, Gerhold, M, Wang, AY, Nagel, M & Lippert, TK 2007, 'Laser-assisted forward transfer of multi-spectral nanocrystal quantum dot emitters', Nanotechnology, vol. 18, no. 2, 025403. https://doi.org/10.1088/0957-4484/18/2/025403

Laser-assisted forward transfer of multi-spectral nanocrystal quantum dot emitters. / Xu, Jian; Liu, Justin; Cui, Dehu; Gerhold, Michael; Wang, Andrew Y.; Nagel, Matthias; Lippert, Thomas K.

In: Nanotechnology, Vol. 18, No. 2, 025403, 17.01.2007.

Research output: Contribution to journalArticle

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