Effects of tensile and compressive strain on the luminescence properties of AllnGaN/lnGaN quantum well structures

M. E. Aumer, S. F. LeBoeuf, S. M. Bedair, M. Smith, J. Y. Lin, H. X. Jiang

Research output: Contribution to journalArticlepeer-review

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Abstract

We report on the luminescence properties of AllnGaN/In0.08Ga0.92N quantum wells (QWs) subjected to a variable amount of lattice mismatch induced strain, including wells with zero strain, compressive strain, and tensile strain. The primary peak emission energy of a 3 nm In0.08Ga0.92TN QW was redshifted by 236 meV as the stress in the well was changed from -0.86% (compressive) to 0.25% (tensile). It was also found that the photoluminescence intensity of quantum wells decreased with increasing strain. A lattice matched 9 nm QW exhibited a luminescence intensity that is three times greater than its highly strained counterpart. The potential applications of this strain engineering will be discussed.

Original languageEnglish
Pages (from-to)821-823
Number of pages3
JournalApplied Physics Letters
Volume77
Issue number6
DOIs
StatePublished - Aug 7 2000

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