[21a-133-1~8] 16.3 Bulk, thin-film and other silicon-based solar cells

[21a-133-7] Bifacial Amorphous Si Quintuple-Junction Solar Cells for Application to IoT

〇(M1)Ryo Sasaki¹, Makoto Konagai¹ (1.Tokyo City Univ.)

Keywords:solar cell, amorphous Si solar cell, multi-junction solar cell

In our group, we are developing bifacial amorphous Si multi-junction solar cells for application to IoT devices. For application to IoT, an operation voltage of 3 V or more is required. In this work, we tried amorphous Si-based quintuple-junction solar cells to increase operating voltage. As a result, an open circuit voltage of 3.4 V was obtained under 3000 lux of LED illumination.