Abstract

Monolithic semiconductor lasers capable of emitting over the full visible-colour spectrum have a wide range of important applications, such as solid-state lighting, full-colour displays, visible colour communications and multi-colour fluorescence sensing. The ultimate form of such a light source would be a monolithic white laser. However, realizing such a device has been challenging because of intrinsic difficulties in achieving epitaxial growth of the mismatched materials required for different colour emission. Here, we demonstrate a monolithic multi-segment semiconductor nanosheet based on a quaternary alloy of ZnCdSSe that simultaneously lases in the red, green and blue. This is made possible by a novel nanomaterial growth strategy that enables separate control of the composition, morphology and therefore bandgaps of the segments. Our nanolaser can be dynamically tuned to emit over the full visible-colour range, covering 70% more perceptible colours than the most commonly used illuminants.

Original languageEnglish (US)
Pages (from-to)796-803
Number of pages8
JournalNature Nanotechnology
Volume10
Issue number9
DOIs
StatePublished - Sep 3 2015

Fingerprint

Color
color
Lasers
lasers
quaternary alloys
Nanosheets
Epitaxial growth
Nanostructured materials
illuminating
Light sources
Semiconductor lasers
light sources
Energy gap
coverings
Lighting
communication
Fluorescence
semiconductor lasers
Display devices
Semiconductor materials

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering
  • Materials Science(all)
  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

Fan, F., Turkdogan, S., Liu, Z., Shelhammer, D., & Ning, C-Z. (2015). A monolithic white laser. Nature Nanotechnology, 10(9), 796-803. https://doi.org/10.1038/nnano.2015.149

A monolithic white laser. / Fan, Fan; Turkdogan, Sunay; Liu, Zhicheng; Shelhammer, David; Ning, Cun-Zheng.

In: Nature Nanotechnology, Vol. 10, No. 9, 03.09.2015, p. 796-803.

Research output: Contribution to journalArticle

Fan, F, Turkdogan, S, Liu, Z, Shelhammer, D & Ning, C-Z 2015, 'A monolithic white laser', Nature Nanotechnology, vol. 10, no. 9, pp. 796-803. https://doi.org/10.1038/nnano.2015.149
Fan F, Turkdogan S, Liu Z, Shelhammer D, Ning C-Z. A monolithic white laser. Nature Nanotechnology. 2015 Sep 3;10(9):796-803. https://doi.org/10.1038/nnano.2015.149
Fan, Fan ; Turkdogan, Sunay ; Liu, Zhicheng ; Shelhammer, David ; Ning, Cun-Zheng. / A monolithic white laser. In: Nature Nanotechnology. 2015 ; Vol. 10, No. 9. pp. 796-803.
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