Tandem module unit
Presented herein are embodiments of a tandem solar panel subunit with 2-terminals, made from two 3-terminal cell tandems, whose top-cells are strongly current-mismatched to the Si 3-terminal bottom cell.
1. A tandem solar panel subunit comprising 2-terminals comprising:
two 3-terminal tandem cells,
wherein each of the two 3-terminal tandem cells further comprising a top-cell and a Si 3-terminal bottom cell,
wherein the top-cell of each of the two 3-terminal tandem cells is current-mismatched to the Si 3-terminal bottom cell of the respective 3-terminal tandem cell, and
wherein two terminals of each of the Si 3-terminal bottom cells are common terminals.
2. The solar panel subunit of claim 1 wherein the top-cells generate photocurrent up to about 25 mA/cm 2 at 1 sun.
3. The solar panel subunit of claim 1 wherein the top-cells generate photocurrent with a voltage up to about 0.979V at 1 sun.
4. The solar panel subunit of claim 1 wherein the top-cells generate photocurrent at an efficiency up to about 23.9% at 1 sun.
5. The solar panel subunit of claim 1 wherein the Si 3-terminal bottom cells generate photocurrent up to about 15 mA/cm 2 at 1 sun.
6. The solar panel subunit of claim 1 wherein the Si 3-terminal bottom cells generate photocurrent with a first voltage up to about 0.607V at 1 sun.
7. The solar panel subunit of claim 1 wherein the Si 3-terminal bottom cells generate photocurrent with a second voltage up to about 0.618V at 1 sun.
8. The solar panel subunit of claim 1 wherein the top-cells generate photocurrent at an efficiency up to about 7.3% at 1 sun.
9. The solar panel subunit of claim 1 wherein the solar panel subunit generates photocurrent at an efficiency up to about 31.2% at 1 sun.
10. The solar panel subunit of claim 1 wherein the top cell generates up to twice the amount of photocurrent as the Si 3-terminal bottom cell.
11. A method of making a tandem solar panel subunit comprising 2-terminals comprising:
two 3-terminal tandem cells,
wherein each of the two 3-terminal tandem cells further comprising a top-cell and a Si 3-terminal bottom cell,
wherein the top-cell of each of the two 3-terminal tandem cells is current-mismatched to the Si 3-terminal bottom cell of the respective 3-terminal tandem cell, and
wherein two terminals of each of the Si 3-terminal bottom cells are common terminals.
12. The method of claim 11 wherein the solar panel subunit of claim 1 wherein the top-cells generate photocurrent up to about 25 mA/cm 2 at 1 sun.
13. The method of claim 11 wherein the solar panel subunit of claim 1 wherein the top-cells generate photocurrent with a voltage up to about 0.979V at 1 sun.
14. The method of claim 11 wherein the solar panel subunit of claim 1 wherein the top-cells generate photocurrent at an efficiency up to about 23.9% at 1 sun.
15. The method of claim 11 wherein the solar panel subunit of claim 1 wherein the Si 3-terminal bottom cells generate photocurrent up to about 15 mA/cm 2 at 1 sun.
16. The method of claim 11 wherein the solar panel subunit of claim 1 wherein the top-cells generate photocurrent at an efficiency up to about 7.3% at 1 sun.
17. The method of claim 11 wherein the solar panel subunit of claim 1 generates photocurrent at an efficiency up to about 31.2% at 1 sun.