Single-mode light source fabrication based on colloidal quantum dots

Jianfeng Xu, Bing Chen, Sarfaraz Baig, Michael Renxun Wang

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

Abstract

There are huge market demands for innovative, cheap and efficient light sources, including light emitting devices, such as LEDs and lasers. However, the light source development in the visible spectral range encounters significant difficulties these years. The available visible wavelength LEDs or lasers are few, large and expensive. The main challenge lies at the lack of efficient light media. Semiconductor nanocrystal quantum dots (QDs) have recently commanded considerable attention. As a result of quantum confinement effect, the emission color of these QDs covers the whole visible spectral range and can be modified dramatically by simply changing their size. Such spectral tunability, together with large photoluminescence quantum yield and photostability, make QDs attractive for potential applications in a variety of light emitting technologies. However, there are still several technical problems that hinder their application as light sources. One main issue is how to fabricate these QDs into a solid state device while still retaining their original optical emission properties. A vacuum assisted micro-fluidic fabrication of guided wave devices has demonstrated low waveguide propagation loss, lower crosstalk, and improved waveguide structures. We report herein the combination of the excellent emission properties of QDs and novel vacuum assisted micro-fluidic photonic structure fabrication technique to realize single-mode efficient light sources.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7224
DOIs
StatePublished - 2009
EventQuantum Dots, Particles, and Nanoclusters VI - San Jose, CA, United States
Duration: Jan 25 2009Jan 28 2009

Other

OtherQuantum Dots, Particles, and Nanoclusters VI
CountryUnited States
CitySan Jose, CA
Period1/25/091/28/09

Fingerprint

Single Mode
Quantum Dots
Laser modes
Semiconductor quantum dots
Light sources
Fabrication
light sources
quantum dots
fabrication
fluidics
Microfluidics
Fluidics
Light emitting diodes
Waveguide
Vacuum
Waveguides
light emitting diodes
Laser
waveguides
Solid state devices

Keywords

  • Light source
  • Micro-fluidic
  • Quantum dots
  • Single-mode
  • Waveguide

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Xu, J., Chen, B., Baig, S., & Wang, M. R. (2009). Single-mode light source fabrication based on colloidal quantum dots. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7224). [722415] https://doi.org/10.1117/12.810536

Single-mode light source fabrication based on colloidal quantum dots. / Xu, Jianfeng; Chen, Bing; Baig, Sarfaraz; Wang, Michael Renxun.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7224 2009. 722415.

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

Xu, J, Chen, B, Baig, S & Wang, MR 2009, Single-mode light source fabrication based on colloidal quantum dots. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7224, 722415, Quantum Dots, Particles, and Nanoclusters VI, San Jose, CA, United States, 1/25/09. https://doi.org/10.1117/12.810536
Xu J, Chen B, Baig S, Wang MR. Single-mode light source fabrication based on colloidal quantum dots. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7224. 2009. 722415 https://doi.org/10.1117/12.810536
Xu, Jianfeng ; Chen, Bing ; Baig, Sarfaraz ; Wang, Michael Renxun. / Single-mode light source fabrication based on colloidal quantum dots. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7224 2009.
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