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Title: Photoelectrochemical (PEC) studies on chemically deposited Bi2Se3 thin films
Authors: Sankapal, B R
Pathan, H M
Lokhande, C D
Issue Date: May-2002
Publisher: NISCAIR-CSIR, India
Abstract: Semiconducting Bi2Se3 thin films have been prepared from aqueous alkaline bath onto fluorine-doped tin oxide (FTO) glass substrates (sheet resistance ~7Ω -cm2) by chemical bath deposition (CBD) at room temperature (27 °C). The films formed are of nanocrystalline, smooth, homogeneous and well covered to the substrate surface as evidenced from X –ray diffraction (XRD) and scanning electron microscopy (SEM) studies, respectively. These films are annealed at 200 °C for 4hr in air. The annealed Bi2Se3 films are used for photoelectrochemical (PEC) characterization using polysulphide as an electrolyte and graphite as a counter electrode. The characteristics such as current-voltage (I-V), photovoltaic output and capacitance etc. have been studied and results are reported.
Page(s): 331-336
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.40(05) [May 2002]

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