Optical spectroscopy of quantum confined states in GaAs/AlGaAs quantum well tubes

Teng Shi, Melodie Fickenscher, Leigh Morris Smith, Howard E Jackson, Jan M Yarrison-Rice, Qiang Gao, Hark Hoe Tan, Chennupati Jagadish, Joanne Etheridge, Bryan M Wong

Research output: Chapter in Book/Report/Conference proceedingConference PaperOtherpeer-review


We have investigated the quantum confinement of electronic states in GaAs/AlxGa1-xAs nanowire heterostructures which contain radial GaAs quantum wells of either 4nm or 8nm. Photoluminescence and photoluminescence excitation spectroscopy are performed on single nanowires. We observed emission and excitation of electron and hole confined states. Numerical calculations of the quantum confined states using the detailed structural information on the quantum well tubes show excellent agreement with these optical results.

Original languageEnglish
Title of host publicationThe Physics of Semiconductors
Subtitle of host publicationProceedings of the 31st International Conference on the Physics of Semiconductors (ICPS) 2012
EditorsThomas Ihn, Clemens Rössler , Aleksey Kozikov
PublisherAmerican Institute of Physics
Number of pages2
ISBN (Print)9780735411944
Publication statusPublished - 2013
EventInternational Conference on the Physics of Semiconductors (ICPS) 2012 - Zurich, Switzerland
Duration: 29 Jul 20123 Aug 2012
Conference number: 31st


ConferenceInternational Conference on the Physics of Semiconductors (ICPS) 2012
Abbreviated titleICPS 2012


  • hexagonal theoretical model
  • photoluminescence
  • photoluminescence excitation
  • quantum well

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