caa a22 4500 463213955 CHVBK 20180405153150.0 cr unu---uuuuu 170326e20070101xx s 000 0 eng 10.1007/s00339-006-3727-5 doi (NATIONALLICENCE)springer-10.1007/s00339-006-3727-5 AgI nanostructure development in sputter-disordered and Al-doped Ag films probed by XRD, SEM, optical absorption and photoluminescence [Elektronische Daten] [D.B. Mohan, V.S. Reddy, C.S. Sunandana] By use of thermal evaporation and rf magnetron sputtering 300 and 500Å thick Ag and Ag (Al) films were prepared. γ-AgInanoparticles were formed during (a) short time (2-5min) iodization of undoped thermally evaporated Ag films, (b) longer time (12h) iodization of undoped rf sputtered Ag films and (c) short time (2-15min) iodization of thermally evaporated Ag0.95Al0.05 and Ag0.90Al0.10 films of 500 and 300Å thickness respectively. Both rf sputtered and Al doped Ag films yielded ∼20 to ∼60nm sized γ-AgI particles upon iodization. Optical absorption spectra reveal Z1,2 and Z3 exciton transitions with increased broadening of γ-AgI nanoparticles, suggesting the effect of disorder produced during film formation. Blue shift observed with increasing film thickness could be the effect of decreasing particle size, thereby increasing the quantum confinement effects. Photoluminescence studies show that the donor-acceptor recombination rate, enhanced by 25% for Ag0.95Al0.05I film relative to that of undoped AgI, is due to the tight binding of Al to surface defect sites. Springer-Verlag, 2006 Mohan D.B. School of Physics, University of Hyderabad, 500046, Hyderabad, Andhra Pradesh, India aut Reddy V.S. School of Physics, University of Hyderabad, 500046, Hyderabad, Andhra Pradesh, India aut Sunandana C.S. School of Physics, University of Hyderabad, 500046, Hyderabad, Andhra Pradesh, India aut Applied Physics A Springer-Verlag 86/1(2007-01-01), 73-82 0947-8396 86:1<73 2007 86 339 https://doi.org/10.1007/s00339-006-3727-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-006-3727-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohan D.B. School of Physics, University of Hyderabad, 500046, Hyderabad, Andhra Pradesh, India aut NATIONALLICENCE 700 1- Reddy V.S. School of Physics, University of Hyderabad, 500046, Hyderabad, Andhra Pradesh, India aut NATIONALLICENCE 700 1- Sunandana C.S. School of Physics, University of Hyderabad, 500046, Hyderabad, Andhra Pradesh, India aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 86/1(2007-01-01), 73-82 0947-8396 86:1<73 2007 86 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer