Effect of GaNAs stain compensating layer over InAs quantum dots grown by MOMBE

Sasikala Ganapathy, X. Q. Zhang, K. Uesugi, H. Kumano, I. Suemune, B. J. Kim, T. Y. Seong

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)


We demonstrated the 1.55 μm light emission at room temperature from self-assembled InAs quantum dots embedded inside the GaNAs strain-compensating layer. InAs quantum dots have been capped with tensile strained GaNAs instead of InGaAs and GaAs to compensate the compressive strain formed due to InAs QDs to keep the total strain of the system minimum as a result the PL peak of InAs QDs shifts towards longer wavelength depending on the N% in GaNAs. The wavelength of 1.55 μm is the longest wavelength so far achieved in self-assembled quantum dots grown on Gads substrates, which would be promising for application to light source in long-wavelength optical-fiber communication system.

Original languageEnglish
Pages (from-to)557-560
Number of pages4
JournalConference Proceedings - International Conference on Indium Phosphide and Related Materials
Publication statusPublished - 2002
Externally publishedYes
Event14th Indium Phosphide and Related Materials Conference - Stockholm, Sweden
Duration: 2002 May 122002 May 16

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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