http://www.cnr.it/ontology/cnr/individuo/prodotto/ID168108
Interplay between Amplified Spontaneous Emission, Forster Resonant Energy Transfer, and Self-Absorption in Hybrid Poly(9,9-dioctylfluorene)-CdSe/ZnS Nanocrystal Thin Films (Articolo in rivista)
- Type
- Label
- Interplay between Amplified Spontaneous Emission, Forster Resonant Energy Transfer, and Self-Absorption in Hybrid Poly(9,9-dioctylfluorene)-CdSe/ZnS Nanocrystal Thin Films (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/jp906860c (literal)
- Alternative label
Anni M., Alemanno E., Creti A., Ingrosso C.,Paniello A., Striccoli M., Curri M.L., Lomascolo M. (2010)
Interplay between Amplified Spontaneous Emission, Forster Resonant Energy Transfer, and Self-Absorption in Hybrid Poly(9,9-dioctylfluorene)-CdSe/ZnS Nanocrystal Thin Films
in The journal of physical chemistry. A
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Anni M., Alemanno E., Creti A., Ingrosso C.,Paniello A., Striccoli M., Curri M.L., Lomascolo M. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://pubs.acs.org/doi/abs/10.1021/jp906860c (literal)
- 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 Salento, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy
2. CNR, IMM, I-73100 Lecce, Italy
3. Univ Bari, Dipartmento Chim, CNR, IPCF, I-70126 Bari, Italy (literal)
- Titolo
- Interplay between Amplified Spontaneous Emission, Forster Resonant Energy Transfer, and Self-Absorption in Hybrid Poly(9,9-dioctylfluorene)-CdSe/ZnS Nanocrystal Thin Films (literal)
- Abstract
- We investigated the excitation density dependence of the photoluminescence spectra of hybrid poly(9,9-dioctylfluorene)-CdSe/ZnS nanocrystals (PF8-NCs) thin films. We demonstrate that this experiment allows the determination of the efficiency of all the CdSe/ZnS NCs excitation processes and that the presence of amplified spontaneous emission (ASE) from the PF8 leads to a strong dependence of the NC excitation processes from the laser excitation density. Below the PF8 ASE threshold only about 6% of the excitons in the NCs are due to pump laser absorption, while about 94% of the NC excitation is due to the interaction with the PF8, and it is due for about 58% to PF8 -> NC Forster resonant energy transfer (FRET) and for about 37% to reabsorption by the NCs of the PF8 luminescence. ne presence of PF8 ASE significantly modifies this scenario by strongly decreasing the FRET importance and strongly increasing the reabsorption one. The interplay between reduced FRET and increased reabsorption overall decreases the NC excitation due to PF8 indicating that ASE from the donors should be avoided if efficient NCs excitation under strong pumping is wished. (literal)
- Prodotto di
- Autore CNR
Incoming links:
- Prodotto
- Autore CNR di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi