http://www.cnr.it/ontology/cnr/individuo/prodotto/ID36829
Photoluminescence of CdSe nanowires grown with and without metal catalyst (Articolo in rivista)
- Type
- Label
- Photoluminescence of CdSe nanowires grown with and without metal catalyst (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Alternative label
Fasoli A, Colli A, Martelli F, Pisana S, Tan PH, Ferrari AC (2011)
Photoluminescence of CdSe nanowires grown with and without metal catalyst
in Nano research (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Fasoli A, Colli A, Martelli F, Pisana S, Tan PH, Ferrari AC (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- 1. Univ Cambridge, Dept Engn, Cambridge CB3 0FA, England
2. Nokia Res Ctr, Cambridge CB3 0GT, England
3. CNR, Ist Microelettron & Microsistemi, I-00133 Rome, Italy
4. Chinese Acad Sci, Inst Semicond, SKLSM, Beijing 100083, Peoples R China (literal)
- Titolo
- Photoluminescence of CdSe nanowires grown with and without metal catalyst (literal)
- Abstract
- We present temperature and power dependent photoluminescence measurements on CdSe nanowires synthesized via vapor-phase with and without the use of a metal catalyst. Nanowires produced without a catalyst can be optimized to yield higher quantum efficiency, and narrower and spatially uniform emission, when compared to the catalyst-assisted ones. Emission at energies lower than the band-edge is also found in both cases. By combining spatially-resolved photoluminescence and electron microscopy on the same nanowires, we show that catalyst-free nanowires exhibit a low-energy peak with sharp phonon replica, whereas for catalyst-assisted nanowires low-energy emission is linked to the presence of nanostructures with extended morphological defects. (literal)
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- Autore CNR
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