Synthesis and characterization of Cd{sub 0.7}Pb{sub 0.3}Se thin films for photoelectrochemical solar cell

Journal Article · Mon Mar 15 00:00:00 EDT 2010 · Solar Energy

DOI:https://doi.org/10.1016/J.SOLENER.2009.12.009· OSTI ID:21305691

Delekar, S D; Patil, M K ^[1]; Jadhav, B V; Sanadi, K R; Hankare, P P ^[2]

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1. Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Sub-center Osmanabad 413 501, Maharashtra (India)
2. Solid State Research Laboratory, Department of Chemistry, Shivaji University, Kolhapur 416 004, Maharashtra (India)

Optimum composition Cd{sub 0.7}Pb{sub 0.3}Se thin films have been deposited using the chemical bath containing cadmium sulfate octahydrate, lead nitrate, tartaric acid, potassium hydroxide, ammonia, and sodium selenosulfate onto fluorine-doped tin oxide glass substrate. The various deposition parameters such as composition of reactive bath, pH of the solution, deposition temperature, deposition time, speed of rotation, etc. have been optimized for obtaining good quality film. X-ray diffraction studies revealed the polycrystalline nature of sample with the solid solution of lead (II) ions in CdSe host lattice, having a hexagonal phase structure. Scanning electron micrograph suggested that the grains were non-uniformly distributed over the substrate surface. Film composition was determined by atomic absorption spectroscopy as well as energy dispersive X-ray atomic spectroscopy. Optical absorption data showed the presence of direct transition with energy band gap 1.80 eV for the deposited thin films. The dark specific conductance of Cd{sub 0.7}Pb{sub 0.3}Se thin films was found to the order of 10{sup -6} ({omega} cm){sup -1} having n-type semiconducting nature. Photoelectrochemical characterization was carried out using sulfide/polysulfide electrolyte with 1.401% efficiency. (author)

• OSTI ID: 21305691
• Journal Information: Solar Energy, Vol. 84, Issue 3; Other Information: Elsevier Ltd. All rights reserved; ISSN 0038-092X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
THIN FILMS
SOLID SOLUTIONS
CADMIUM SULFATES
TIN OXIDES
CADMIUM SELENIDE SOLAR CELLS
CRYSTAL STRUCTURE
CHEMICAL COMPOSITION
LEAD NITRATES
ENERGY GAP
TARTARIC ACID
LEAD IONS
AMMONIA
FLUORINE
CADMIUM SELENIDES
POTASSIUM HYDROXIDES
CADMIUM
DEPOSITION
SYNTHESIS
DOPED MATERIALS
EV RANGE
ABSORPTION
IONS
POLYCRYSTALS
ROTATION
SUBSTRATES
SULFIDES
PH VALUE
ELECTROLYTES
GLASS
SURFACES
LEAD SELENIDES
SODIUM SULFATES
CHEMICAL COATING
Cadmium lead chalcogenides
Mott-Schottky plot
Photoelectrochemical studies