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| Q. |
What is the element required for solar energy conversion? |
| A. | Beryllium |
| B. | Tantalum |
| C. | Silicon |
| D. | Ultra pure carbon |
| Answer» C. Silicon | |
| Explanation: The most prevalent bulk material for solar cells is crystalline silicon (abbreviatedas a group as c-Si), also known as "solar grade silicon". Bulk silicon is separated into multiple categories according to crystallinity and crystal size in the resulting ingot, ribbon, or wafer. | |
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