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Effect of annealing and surface treatment on the efficiency of photoelectrochemical (PEG) solar cells with vacuum-deposited n-InSe thin film electrode

Sathyanarayanan , J. and Das , V. D. and Damodare, L. (1997) Effect of annealing and surface treatment on the efficiency of photoelectrochemical (PEG) solar cells with vacuum-deposited n-InSe thin film electrode. Surface and Coatings Technology, 94 (1-3). pp. 669-671. ISSN 0257-8972

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Abstract

Three hundred-nanometre thick films of n-InSe have been vacuum-deposited by flash evaporation on conducting indium oxide film coated clean glass substrates held at 373 K at 6.6 x 10(-3) Pa pressure. These InSe films have been used as photoelectrodes in a photoelectrochemical (PEC) cell with graphite as the counter electrode, the saturated calomel electrode as the reference electrode and aqueous polyiodide electrolyte (with different pHs) as the redox electrolyte. PEC cells have been characterised by making I-V and C-V measurements under different experimental conditions, i.e., using the as-grown InSe films as photoelectrodes before and after surface treatment and after annealing and/or etching and for different pHs of the electrolyte. The optimum pH has been found to be about 6.2. It is also found that surface treatment and annealing leads to increase in the efficiency of the PEC solar cell. The open circuit voltage and photo current density are found to be of the order of 580 mV and 3000 mu V/cm(2), respectively under AM1 condition. (C) 1997 Elsevier Science S.A.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:7082
Deposited By:JNCASR
Deposited On:02 Sep 2009 07:38
Last Modified:02 Sep 2009 07:38

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