1 / 7

Tyler Park Kenneth Clark David Meyer Andrew Perry Scott Thalman

Photoluminescence spectroscopy and transmission electron microscopy imaging of InGaAs quantum dot chains. Tyler Park Kenneth Clark David Meyer Andrew Perry Scott Thalman John Colton Haeyeon Yang. APS 4CS Meeting 21-22 October 2011. Introducing the Quantum Dot.

tod
Download Presentation

Tyler Park Kenneth Clark David Meyer Andrew Perry Scott Thalman

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Photoluminescence spectroscopy and transmission electron microscopy imaging of InGaAs quantum dot chains Tyler Park Kenneth Clark David Meyer Andrew Perry Scott Thalman John Colton Haeyeon Yang APS 4CS Meeting 21-22 October 2011

  2. Introducing the Quantum Dot • Confine the electrons (carriers) in three dimensions by creating a potential barrier • Quantum Well constrained in 1 dimension • Quantum Wires constrained in 2 dimensions

  3. Quantum Dot Chains • Molecular Beam Epitaxy (MBE) • Modified Stranski-Krastanov(SK) method • Potential applications in quantum computing schemes • Applications for narrowband infrared lasers and detectors • Other applications similar to quantum dots Anneal

  4. Photoluminescence Spectroscopy Photon Electron

  5. Transmission Electron Microscopy • Do we have chains? • Size and spacing of quantum dots • Chemical composition

  6. TEM Images Quantum Dot? Platinum Carbon GaAs Capping Layer QD Layer 5 nm GaAs Substrate

  7. Conclusion • Plan view cuts and other cross-section cuts • Photoluminescence lifetime measurements • High resolution photoluminescence

More Related