[24p-12M-1~21] 16.3 Bulk, thin-film and other silicon-based solar cells

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[24p-12M-5] In-free SHJ solar cells with amorphous SnO₂ and nanocrystalline Si layers

〇Hitoshi Sai¹, Takashi Koida¹, Takuya Matsui¹ (1.AIST)

Keywords:

solar cell,silicon hetero junction,TCO

Silicon heterojunction (SHJ) solar cells, which have demonstrated high power generation efficiency, are expected to become more widespread in the future. However, they use indium-based materials as transparent conductive oxide (TCO), raising concerns about resource constraints. Recently, we discovered that amorphous SnO₂ (a-SnO₂) films formed at low temperatures function as excellent TCOs. In this work, we attempted to apply a-SnO₂ films to SHJ solar cells aiming for In-free devices.