http://www.cnr.it/ontology/cnr/individuo/prodotto/ID35252
Effects of thermal annealing on the optical properties of inganas/gaas multiple quantum wells (Articolo in rivista)
- Type
- Label
- Effects of thermal annealing on the optical properties of inganas/gaas multiple quantum wells (Articolo in rivista) (literal)
- Anno
- 2002-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1088/0268-1242/17/2/310 (literal)
- Alternative label
Pomarico S., Lomascolo M., Cingolani R., Yu Egorov A., Riechert H. (2002)
Effects of thermal annealing on the optical properties of inganas/gaas multiple quantum wells
in Semiconductor science and technology (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Pomarico S., Lomascolo M., Cingolani R., Yu Egorov A., Riechert H. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Univ Lecce, INFM, Dipartimento Ingn Innovaz, Natl Nanotechnol Lab, I-73100 Lecce, Italy
IMM-CNR Lecce 73100 Lecce Italy
Infineon Technol, Corp Res Photon, Munich, Germany (literal)
- Titolo
- Effects of thermal annealing on the optical properties of inganas/gaas multiple quantum wells (literal)
- Abstract
- We present an optical characterization of as-grown and thermally annealed
InGaNAs/GaAs multiple quantum well samples. In both samples, from the
analysis of the photoluminescence spectra we can infer that the
low-temperature photoluminescence emission is related to carriers localized
in the alloy potential fluctuations; with increasing temperature, we
observe their gradual delocalization and then the transition towards a
completely different type of lineshape, typical of free carrier
recombinations. The comparison between the photoluminescence spectra of the
as-grown and the annealed samples shows that a remarkable improvement of
the optical properties occurs after the thermal annealing. This
improvement is related to an important reduction in the density of the
defects and in the depth of the alloy potential fluctuations. (literal)
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- Autore CNR
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