http://www.cnr.it/ontology/cnr/individuo/prodotto/ID58628
Size-Dependent Electron Transfer from Colloidal PbS Nanocrystals to Fullerene (Articolo in rivista)
- Type
- Label
- Size-Dependent Electron Transfer from Colloidal PbS Nanocrystals to Fullerene (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1021/jz100116t (literal)
- Alternative label
Gocalinska, Agnieszka; Saba, Michele; Quochi, Francesco; Marceddu, Marco; Szendrei, Krisztina; Gao, Jia; Loi, Maria A.; Yarema, Maksym; Seyrkammer, Robert; Heiss, Wolfgang; Mura, Andrea; Bongiovanni, Giovanni (2010)
Size-Dependent Electron Transfer from Colloidal PbS Nanocrystals to Fullerene
in The journal of physical chemistry letters
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Gocalinska, Agnieszka; Saba, Michele; Quochi, Francesco; Marceddu, Marco; Szendrei, Krisztina; Gao, Jia; Loi, Maria A.; Yarema, Maksym; Seyrkammer, Robert; Heiss, Wolfgang; Mura, Andrea; Bongiovanni, Giovanni (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
- Agnieszka Gocali?nska,+ Michele Saba,*,+ Francesco Quochi,+ Marco Marceddu,+
Krisztina Szendrei,? Jia Gao,? Maria A. Loi,? Maksym Yarema,§ Robert Seyrkammer,§
Wolfgang Heiss,§ Andrea Mura,+ and Giovanni Bongiovanni+
+Dipartimento di Fisica and SLACS-CNR/INFM, Universit?a di Cagliari, I-09042 Monserrato, Italy, ?Zernike Institute for Advanced
Materials, University of Groningen, Groningen, 9747 AG, The Netherlands, and §Institute of Semiconductor and Solid State
Physics, Johannes Kepler University, Austria (literal)
- Titolo
- Size-Dependent Electron Transfer from Colloidal PbS Nanocrystals to Fullerene (literal)
- Abstract
- We investigate a promising organic/inorganic hybrid composite for
solution-processable optoelectronics made by lead sulphide nanoparticles and
fullerene derivatives, which combine the sensitivity of PbS to the infrared spectrum
with the good electron transport properties of fullerenes. Charge separation is the
crucial process that determines whether the heterojunction can be the building
block for devices converting photogenerated excitons into free charges flowing in a
circuit. Subpicosecond spectroscopy techniques on bulk heterojunctions between
PbS nanocrystals of various sizes and [6,6]-phenyl-61-butyric acid methyl ester
(PCBM) were employed to reveal the ultrafast dynamics of photoexcited carriers,
particularly transfer of photoexcited electrons from nanocrystals to PCBM. Electron
transfer is found to critically depend on nanoparticle size, occurring for
nanocrystals with diameter 4.4 nm and smaller, not for larger ones. Our findings
are relevant to the engineering of hybrid solar cells and light detectors based on PbS
nanocrystal/fullerene bulk heterojunctions. (literal)
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