1. Structural and Optical Characteristics of Metamorphic Bulk.
- Author
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Lin, Youxi, Wang, Ding, Donetsky, Dmitry, Kipshidze, Gela, Shterengas, Leon, Belenky, Gregory, Sarney, Wendy L., and Svensson, Stefan P.
- Subjects
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METAMORPHIC rocks , *QUANTUM efficiency , *ABSORPTION , *MOLECULAR beam epitaxy , *ELECTROLUMINESCENCE - Abstract
Bulk unrelaxed alloys with compositions up to 65% and layer thicknesses up to 3 μm were grown by molecular beam epitaxy. The photoluminescence (PL) peak energy as low as 0.10 eV was demonstrated at T = 77 K. The electroluminescence and quantum efficiency data demonstrated with unoptimized barrier heterostructures from T = 80 to 150 K suggested large absorption and carrier lifetimes sufficient for the development of long wave infrared detectors and emitters with high quantum efficiency. The minority hole transport was found to be adequate for development of the detectors and emitters with large active layer thickness. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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