caa a22 4500 463230124 CHVBK 20180405153239.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10853-006-1192-3 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1192-3 Murali K. Electrochemical Materials Science Division, Central Electrochemical Research Institute, 630 006, Karaikudi, India aut Properties of GaAs films deposited by pulse periodic technique [Elektronische Daten] [K. Murali] GaAs is a III-V compound possessing high mobility and a direct band gap of 1.43eV , making it a very suitable candidate for photovoltaic applications. Thin GaAs films were prepared at room temperature by plating an aqueous solution containing GaCl3 and As2O3 at a pH of 2. The current density was kept as 50mAcm−2 and the duty cycle was varied in the range 10-50%. The films were deposited on titanium and tin oxide coated glass substrates. Films exhibited polycrystalline nature with peaks corresponding to single phase GaAs. Optical absorption measurements indicated a direct band gap of 1.40eV. The surface roughness of the films varied from 3nm to 6nm as the duty cycle increased. Raman spectra indicated both the LO and TO phonons for the films deposited at duty cycles above 25%. Photoelectrochemical studies indicated that the current and voltage output are higher than earlier reports on thin film electrodes. Springer Science+Business Media, LLC, 2006 Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/4(2007-02-01), 1321-1324 0022-2461 42:4<1321 2007 42 10853 https://doi.org/10.1007/s10853-006-1192-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1192-3 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Murali K. Electrochemical Materials Science Division, Central Electrochemical Research Institute, 630 006, Karaikudi, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/4(2007-02-01), 1321-1324 0022-2461 42:4<1321 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer