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Nanowire LEDs for Single Photon Sources: Fabrication and Results Overview

Explore the background, fabrication process, results, and conclusions of quantum dot nanowire LEDs as single photon sources. This study presents the fabrication of NW PN junctions, TEM analysis, and performance at 10K with InAsP and InP materials. Conclusions highlight the potential for use as single photon sources in the infrared spectrum.

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Nanowire LEDs for Single Photon Sources: Fabrication and Results Overview

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  1. Single QD Nanowire LEDs Devang Parekh 3/7/07 EE235

  2. Overview • Background • Fabrication • Results • Conclusions

  3. Background • LEDs • Single Photon Sources • Photon-Electron Turnstiles • Quantum Optics Kim et. al. Nano Lett. (2004)

  4. T=420oC DEZn TMI PH3 AsH3 H2S Fabrication

  5. NW PN Junction

  6. EL PN Junction

  7. TEM QD Nanowire

  8. EL QD Nanowire • 1.4-2.2V Bias • 10K • InAsP (~1.31eV) • InP (>1.42eV)

  9. PL QD Nanowire

  10. Conclusion • Photoluminescence is shown • Electroluminescence is shown • Barriers needed to narrow linewidth • Good candidate for single photon source in infrared

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