Screen-printed CdS/CdTe solar cell of 12.8% efficiency for an active area of 0.78 cm2
✍ Scribed by H. Matsumoto; K. Kuribayashi; H. Uda; Y. Komatsu; A. Nakano; S. Ikegami
- Publisher
- Elsevier Science
- Year
- 1984
- Weight
- 316 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0379-6787
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✦ Synopsis
A screen-printed CdS/CdTe solar cell was produced with improved preparation conditions for the carbon electrode, and the influence of the width of the CdTe layer on the characteristics of the cell was studied. The maximum practical efficiency was obtained for a CdTe layer width of around 5 mm. The fill factor increased with decrease in the width of the CdTe layer, and the maximum fill factor was around 0.6, about 0.1 higher than that reported previously. The improvement in the preparation conditions for the carbon electrode is thought to increase the fill factor. The maximum intrinsic efficiency was obtained for a CdTe layer width of 2 mm and was found to be 12.8% for an active area of 0.78 cm 2. This is the highest value obtained for any thin film type of cell. The values of the diode quality factor n, the reverse saturation current I0 and the series resistance R s for the 12.8% efficient cell were 2.2, 2.3 X 10 -8 A and 3.8 ~2 respectively. The Rs value of 3.8 ~2 was much higher than the value calculated by assuming that R~ was determined only by the resistance of the CdS film.