Three-terminal amorphous silicon solar cells

Cheng Hung Tai, Chu Hsuan Lin, Chih Ming Wang, Chun Chieh Lin

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


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 0.28μm-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.

Original languageEnglish
Article number813093
JournalInternational Journal of Photoenergy
StatePublished - 2011


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