title: Spectroscopic studies on photoelectron transfer from 2-(furan-2-yl)-1-phenyl-1H-phenanthro[9,10-d]imidazole to ZnO, Cu-doped ZnO and Ag-doped ZnO.
abstract: The 2-(furan-2-yl)-1-phenyl-1H-phenanthro[9,10-d]imidazole [FPI] has been designed and synthesized as fluorescent sensor for nanoparticulate ZnO. The present work investigates the photoelectron transfer (PET) from FPI to ZnO, Cu-doped ZnO and Ag- doped ZnO nanoparticles using electronic and life time spectral measurements. Broad absorption along with red shift indicates the formation of charge-transfer complex [FPI-Nanoparticles]. The photophysical studies indicate lowering of HOMO and LUMO energy levels of FPI on adsorption on ZnO due to FPI- ZnO interaction. The obtained binding constant implies that the binding of FPI with nanoparticles was influenced by the surface modification of ZnO nanoparticles with Cu and Ag.
authors.affiliation: Department of Chemistry, Annamalai University, Annamalainagar, 608 002, Tamilnadu, India.
authors.forename: V
authors.initials: V
authors.lastname: Thanikachalam
authors.forename: A
authors.initials: A
authors.lastname: Arunpandiyan
authors.forename: J
authors.initials: J
authors.lastname: Jayabharathi
authors.forename: C
authors.initials: C
authors.lastname: Karunakaran
authors.forename: P
authors.initials: P
authors.lastname: Ramanathan
mesh_terms: D003300:Copper / Q000737:chemistry*; D055664:Electrochemical Techniques; D004579:Electron Transport; D005663:Furans / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D008163:Luminescent Measurements; D009682:Magnetic Resonance Spectroscopy; D012834:Silver / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: C000598231:2-(furan-2-yl)-1-phenyl-1H-phenanthro(9,10-d)imidazole; D005663:Furans; D007093:Imidazoles; D012834:Silver; D003300:Copper; D015034:Zinc Oxide
references.citation: Science. 2001 Jun 8;292(5523):1897-9
references.pmid: 11397941
references.citation: J Am Chem Soc. 2004 Jan 14;126(1):62-3
references.pmid: 14709060
references.citation: Dalton Trans. 2013 Oct 14;42(38):13855-65
references.pmid: 23913133
references.citation: Nat Biotechnol. 2003 Jan;21(1):41-6
references.pmid: 12459735
references.citation: Science. 1998 Sep 25;281(5385):2013-6
references.pmid: 9748157
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2014 Jan 24;118:182-6
references.pmid: 24051287
references.citation: Nat Mater. 2005 Jun;4(6):455-9
references.pmid: 15895100
references.citation: Chem Cent J. 2011 Jun 16;5(1):31
references.pmid: 21679411
references.citation: Spectrochim Acta A Mol Biomol Spectrosc. 2014;120:84-7
references.pmid: 24177874
references.citation: J Photochem Photobiol B. 2002 May;67(1):64-70
references.pmid: 12007469
references.citation: J Biomed Mater Res A. 2007 Mar 15;80(4):852-60
references.pmid: 17072850
references.citation: Science. 1998 Jun 26;280(5372):2098-101
references.pmid: 9641911
references.citation: J Fluoresc. 2012 Jul;22(4):1047-53
references.pmid: 22434404
references.citation: Bioorg Med Chem. 2005 Mar 1;13(5):1837-45
references.pmid: 15698801
references.citation: Nat Biotechnol. 2004 Aug;22(8):969-76
references.pmid: 15258594