Optimization of transparent electrode for solar cell. Technical report, 15 September 1981-14 September 1982
Electrically conductive, transparent films of fluorine doped tin oxide have been investigated during this contract. These films were grown by the chemical vapor deposition from tetramethyl tin (TMT) in the presence of air and a freon (bromotrifluoromethane). In order to find the optimal conditions for growing high quality films, the concentrations of the reactants were varied, and the resulting film quality was related to a figure of merit (electrical conductance/optical absorbance). This figure is independent of film thickness and increases as the quality of the film is improved. As a further test of quality the variations in the bulk conductivity were also investigated and shown to vary in the same way as the figure of merit. Film growth rates as a function of varying reactant concentrations were determined. Preliminary investigations of fluorine content by Auger spectroscopy were carried out. The surface morphology of the films was studied by scanning electron microscopy, and conditions for growing either smooth or rough films are reported.
- Research Organization:
- Harvard Univ., Cambridge, MA (USA)
- DOE Contract Number:
- AC02-77CH00178
- OSTI ID:
- 6875810
- Report Number(s):
- SERI/PR-9318-2-T5; ON: DE83002804
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SOLAR CELLS
ELECTRODES
TIN OXIDES
ABSORPTIVITY
CHEMICAL VAPOR DEPOSITION
ELECTRIC CONDUCTIVITY
AUGER ELECTRON SPECTROSCOPY
CRYSTAL DOPING
CRYSTAL GROWTH
EXPERIMENTAL DATA
FILMS
FLUORINE
MICROSTRUCTURE
OPTIMIZATION
SCANNING ELECTRON MICROSCOPY
SPECTRAL RESPONSE
VAPOR DEPOSITED COATINGS
CHALCOGENIDES
CHEMICAL COATING
COATINGS
CRYSTAL STRUCTURE
DATA
DEPOSITION
DIRECT ENERGY CONVERTERS
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
ELECTRON SPECTROSCOPY
ELEMENTS
EQUIPMENT
HALOGENS
INFORMATION
MICROSCOPY
NONMETALS
NUMERICAL DATA
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOVOLTAIC CELLS
PHYSICAL PROPERTIES
SOLAR EQUIPMENT
SPECTROSCOPY
SURFACE COATING
TIN COMPOUNDS
140501* - Solar Energy Conversion- Photovoltaic Conversion