MOD silver metallization for photovoltaics. Quarterly technical report, December 1, 1983-February 29, 1984. [Metallo-organic decomposition]
It was determined that pyrolysis products can produce dark surface films on MOD silver conductors. Improving the purity of all ink ingredients helped this problem. It was established that the existence and nature of the surface film is influenced by the rate of air flow during firing and by the heating rate in the 70 to 225/sup 0/C range, but these processing parameters have not as yet been optimized. Low temperature solvent removal was determined to be of prime importance in obtaining good adhesion between the MOD films and the substrate. For inks developed to date, 15 to 30 minutes at 60 to 70/sup 0/C was required. It was also determined that the adhesion is influenced by the air flow rate during firing, the heating rate in the 100 to 250/sup 0/C range, and the maximum firing temperature. Results during the first 3 months of effort on this project have demonstrated that it is essential to use generic compounds, and that the compounds must be prepared from high purity raw materials. It was also established that the quality and properties of the MOD silver films are intimately dependent on the time-temperature processing. All of the results obtained to date still indicate that MOD silver shows great promise for low temperature metallization of photovoltaic cells.
- Research Organization:
- Purdue Univ., West Lafayette, IN (United States)
- DOE Contract Number:
- NAS-7-100-956679
- OSTI ID:
- 5045230
- Report Number(s):
- DOE/JPL/956679-84/1; ON: DE84009623
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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