[20a-W531-1~10] 12.5 有機太陽電池

▼ [20a-W531-8] Secondary growth of perovskite crystal for pinhole-free perovskite layers with large single-crystal grains

〇馬 騰^1,2、但木 大介^1,2、平野 愛弓^1,2、庭野 道夫^1,2 (1.東北大、2.JST-CREST)

キーワード：perovskite solar cells,crystal growth

In this research, we report that high quality pinhole-free perovskite layers can be fabricated by a vapor-assisted high-temperature (VAHT) process. The perovskite layer fabricated by traditional two-step process was composed of small crystals (300 nm ~1µm). The crystal size reached 50 µm when the proposed VAHT method was adopted. The crystal-growth mechanism and applications of the high quality pinhole-free perovskite layer to photo-detectors and perovskite solar cells will be discussed in the presentation.