Novel single source precursor for synthesis of Sb2Se3 nanorods and deposition of thin films by AACVD: Photo-electrochemical study for water reduction catalysis

Abstract

N. (2018). Novel single source precursor for synthesis of Sb2Se3 nanorods and deposition of thin films by AACVD: Photo-electrochemical study for water reduction catalysis. Solar Energy, 169, 526-534. https://doi. AbstractA new complex, tris(selenobenzoato)antimony(III) has been synthesized by a facile route and the structure determined by single crystal X-ray crystallography. The complex was used as a single source precursor to synthesize Sb 2 Se 3 nanorods by the hot injection method whereas Sb 2 Se 3 thin films were deposited on glass substrates by the Aerosol Assisted Chemical Vapour Deposition (AACVD) technique. The as synthesized nanorods and thin films were then characterized by powder x-ray diffraction, electron microscopy, Raman and UV/Vis spectroscopy. AACVD of the complex produced highly crystalline and pure Sb 2 Se 3 thin films between 400-500 °C. The shape of Sb 2 Se 3 crystallites are generally in the form of wires or thin plates, sometimes forming leaflike structures uniformly spread on the entire substrate. The size and shape of these crystallites with their stoichiometry was found to be dependent on the deposition temperature. Sb 2 Se 3 nanorods were tested for photo-electrochemical (PEC) water reduction catalysis. When simulated solar light was illuminated at the Sb 2 Se 3 /FTO surface, cathodic photocurrents were generated for H 2 generation. At open circuit potential (OCP) photo-cathodic current generated with the Sb 2 Se 3 /FTO electrode was in the range of -44.8 to -52.1 μA.cm -2 .

Thermoelectric Generator Using Polyaniline-Coated Sb2Se3/β-Cu2Se Flexible Thermoelectric Films

“…The Raman spectrum of the Sb 2 Se 3 nanowires is provided in Figure S1 of the Supplementary Information . Here, the peaks located at 118, 188, and 208 cm −1 are consistent with the Sb 2 Se 3 phase [ 31 , 32 ], whereas the peak at 252 cm −1 is consistent with the Sb 2 O 3 phase. As this second phase was not observed in the XRD pattern and XPS spectra, the small Raman peak can be attributed to oxidation of the Sb 2 Se 3 surface to Sb 2 O 3 by the high-density laser (1 mW/μm 2 ) of the Raman II instrument [ 31 ].…”

Fabrication of Ni2+ incorporated ZnO photoanode for efficient overall water splitting

“…The experimental setup detailed description and of AACVD is reported (earlier) elsewhere. [31] , [32] Briefly, the precursor solution was prepared by mixing varying concentrations (2%, 5%, 10% and 15%) of nickel acetate tetrahydrate with zinc acetate dihydrate in 20 mL methanol solution. The resulting solution was transferred to two necked round bottom flask and placed in water bath above an ultrasonic humidifier where the aerosols were generated.…”

Electronic Tuning of Zinc Oxide by Direct Fabrication of Chromium (Cr) incorporated photoanodes for Visible-light driven Water Splitting Applications

“…The chemicals and materials were purchased from Sigma Aldrich and used as received. The AACVD was used to fabricate plain and Cr 3+ incorporated ZnO thin films on a glass substrate according to our previous reports [35][36][37] . In brief, different contents (2%, 5%, 10% and 15%) of Cr 3 O 4 are mixed with Zn(CH 3 COO) 2 .2H 2 O in methanol (20 mL) to prepare the precursor solutions.…”