| 학회 | 한국재료학회 |
| 학술대회 | 2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 | 27권 2호 |
| 발표분야 | C. 에너지 재료 분과 |
| 제목 | TiO2 Nanotube arrays as ETL for stability and to enhance the efficiency by the Light Harvesting in Perovskite Solar Cells |
| 초록 | In order to improve the light-harvesting ability of the perovskite solar cell (PSC), TiO2 nanoparticles/nanotubes (TNN) are added to the active layer of the PSC. The photocurrent density (JSC) of TNN-containing perovskite cells showed a considerable increase from 23.2 mA/cm2 without nanotubes to 24.7 mA/cm2, indicating that the TiO2 nanotubes enhanced the charge conduction and harvested more sunlight. The light harvesting was attributed to the Mie scattering effect. Power conversion efficiency (PCE) of TiO2 nanoparticles in the active layer (14.86%) increased to 15.93%. with TNN-containing cells at optimal loading of 9wt % TiO2 nanotubes. The stability is sustained over 82 days retaining 96%-97% of their original value. XRD, FESEM, I-V plot and UV-vis spectroscopy measurement were performed to characterize and analyzed the PSC. This work was supported by “Human Resources Program in Energy Technology” of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea. (No. 20204010600470) |
| 저자 | 간가사가르 샤르마 가우델, 한승희, Chuquer Ana, 노원엽 |
| 소속 | 전북대 |
| 키워드 | TiO<SUB>2</SUB> nanotube arrays; light harvesting; scattering effect; perovskite solar cells |
