Three-Terminal Amorphous Silicon Solar Cells

الملخص EN

Many defects exist within amorphous silicon since it is not crystalline.

This provides recombination centers, thus reducing the efficiency of a typical a-Si solar cell.

A new structure is presented in this paper: a three-terminal a-Si solar cell.

The new back-to-back p-i-n/n-i-p structure increased the average electric field in a solar cell.

A typical a-Si p-i-n solar cell was also simulated for comparison using the same thickness and material parameters.

The 0.28 μm-thick three-terminal a-Si solar cell achieved an efficiency of 11.4%, while the efficiency of a typical a-Si p-i-n solar cell was 9.0%.

Furthermore, an efficiency of 11.7% was achieved by thickness optimization of the three-terminal solar cell.