Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Room temperature enhanced blue-green, yellow-orange and red phosphorescence from some compounds of the type (CH3NH3) n-1(1-naphthylmethyl ammonium)2Pbn(Cl xBr1-x)3n+1 (with n=1, 2 and 0≤x≤1) and related observations from similar compounds
Δημιουργός/Συγγραφέας:	[EL] Παπαβασιλείου Γεώργιος[EN] Papavassiliou, George C. [EL] Μούσδης, Γεώργιος Α.[EN] Mousdis, George A. Pagona G. Karousis N. Vidali M.-S.
Ημερομηνία:	2014
Γλώσσα:	Αγγλικά
ISSN:	0022-2313
DOI:	10.1016/j.jlumin.2014.01.050
Περίληψη:	The photoluminescence spectra of particulate organic-inorganic hybrid compounds, such as (CH3NH3)(C10H 7CH2NH3)2Pb2Cl 7, (CH3NH3)(C10H7CH 2NH3)2Pb2(Cl0.65Br 0.35)7 or (C10H7CH 2NH3)2PbBr4 and (C 10H7CH2NH3)2PbBr 4-water, observed with 350 nm excitation, exhibit a blue-green, a yellow-orange and a red phosphorescence band, respectively. The observation of enhanced light emission with a naked eye, even at room temperature, is attributed to the energy transfer from Wannier excitonic levels of inorganic to several states of the organic moiety, namely to the energy levels close to those of dimers, trimers, and tetramers of chromophore moieties. The experimental results are in qualitative agreement with those obtained theoretically by others, applying ab initio calculations. The results were compared with those obtained from 2-naphthylmethyl, 4-phenylbenzyl and 9-pyrenylmethyl analogues.
Τίτλος πηγής δημοσίευσης:	Journal of Luminescence
Τόμος/Κεφάλαιο:	149
Σελίδες:	287-291
Θεματική Κατηγορία:	[EL] Φυσική και θεωρητική χημεία[EN] Physical and theoretical chemistry
Λέξεις-Κλειδιά:	Enhanced luminescence intensity Low dimensional systems Organic-inorganic hybrides
Αξιολόγηση από ομότιμους (peer reviewed):	Ναι
Κάτοχος πνευματικών δικαιωμάτων:	© 2014 Elsevier B.V.
Σημειώσεις:	General Secretariat for Research and Technology, GSRT: Polynano-Kripis 447963
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο