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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Viswanathan, V. Tetali, B. Selvaraj, P. Jagannathan, S. Morel, D.L. Ferekides, C.S. Asher, S. |
| Copyright Year | 2000 |
| Description | Author affiliation: Dept. of Electr. Eng., South Florida Univ., Tampa, FL, USA (Viswanathan, V.) |
| Abstract | An important device issue that must be addressed for the use of CdTe solar cells in terrestrial applications is the formation of an effective and reliable back contact. Most successful efforts to date have been relying on the use of copper either in elemental form or in conjunction with other materials. Two examples are copper doped zinc telluride and copper telluride. Such efforts have yielded CdTe solar cells with state-of-the-art fill factors (>75%). However, the long-term stability of copper-based contacts is believed to play a major role in the observed performance degradation of CdTe/CdS solar cells. Nickel phosphide (Ni/sub 2/P) has been considered as an alternative back contact material. Nickel phosphide in powder form was mixed with a graphite paste and subsequently applied to CdTe for the formation of the back contact. Cadmium telluride solar cells were fabricated using this type of contact and the effect of various processing parameters such as annealing temperature, duration of annealing, and Ni/sub 2/P concentration have been studied. The best devices exhibited V/sub oc/s in the range of 820-840 mV and FFs greater than 70% indicating that Ni/sub 2/P is a very promising candidate as a back contact material for CdTe solar cells. |
| Starting Page | 587 |
| Ending Page | 590 |
| File Size | 388743 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780357728 |
| ISSN | 01608371 |
| DOI | 10.1109/PVSC.2000.915908 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2000-09-15 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Nickel Photovoltaic cells Copper Annealing Zinc compounds Stability Degradation Powders Cadmium compounds Temperature |
| Content Type | Text |
| Resource Type | Article |
| Subject | Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering |
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