Kim, Taehee Kim, Hyeok Park, Jinjoo Kim, Hyungchae Yoon, Youngwoon Kim, Sung-Min Shin, Chonghoon Jung, Heesuk Kim, Inho Jeong, Doo Seok Kim, Honggon Kim, Jin Young Kim, BongSoo Ko, Min Jae Son, Hae Jung Kim, Changsoon Yi, Junsin Han, Seunghee Lee, Doh-Kwon 2024-01-20T08:31:14Z 2024-01-20T08:31:14Z 2021-09-02 2014-11-21 2045-2322 https://pubs.kist.re.kr/handle/201004/126102 Organic-inorganic hybrid tandem solar cells attract a considerable amount of attention due to their potential for realizing high efficiency photovoltaic devices at a low cost. Here, highly efficient triple-junction (TJ) hybrid tandem solar cells consisting of a double-junction (DJ) amorphous silicon (a-Si) cell and an organic photovoltaic (OPV) rear cell were developed. In order to design the TJ device in a logical manner, a simulation was carried out based on optical absorption and internal quantum efficiency. In the TJ architecture, the high-energy photons were utilized in a more efficient way than in the previously reported a-Si/OPV DJ devices, leading to a significant improvement in the overall efficiency by means of a voltage gain. The interface engineering such as tin-doped In2O3 deposition as an interlayer and its UV-ozone treatment resulted in the further improvement in the performance of the TJ solar cells. As a result, a power conversion efficiency of 7.81% was achieved with an open-circuit voltage of 2.35 V. The wavelength-resolved absorption profile provides deeper insight into the detailed optical response of the TJ hybrid solar cells. English NATURE PUBLISHING GROUP EFFICIENCY Triple-Junction Hybrid Tandem Solar Cells with Amorphous Silicon and Polymer-Fullerene Blends Article 10.1038/srep07154 1 SCIENTIFIC REPORTS, v.4 SCIENTIFIC REPORTS 4 scie scopus 000346179600002 2-s2.0-84923281080 Multidisciplinary Sciences Science & Technology - Other Topics Article EFFICIENCY tandem solar cells triple-junction organic-inorganic hybrid amorphous silicon OPV