[6p-A401-1~14] 1.4 Energy conversion, storage, resources and environment

▲ [6p-A401-6] Using Silver-Doped TiO2 Electron Transport Layer to Enhance Photovoltaic Performance of Perovskite Structured Solar Cell

〇(M2)Yinghan Liao¹, Shunhsiang Chan¹, Tzuhao Lin¹, Mingchung Wu¹ (1.Chang Gung Univ.)

Keywords:perovskite solar cell, short-circuit current density, silver-doped TiO2

In the recently year, solar cells, such as copper indium gallium diselenide, dye-sensitized solar cells, organic photovoltaic and perovskite solar cells are developed rapidly and focus on high efficiency, low cost and easy fabrication. For perovskite solar cells, it had most development potential in high efficiency that it increased rapidly from 3.8% to 22.1%. In order to increase the power conversion efficiency (PCE), we used the metal ion-doped TiO2 compact layer as electron transport layer due to the chemical stability, low cost and high electron transporting characteristics. Herein, we prepared various silver-doped TiO2 electron transport layers with different doping concentrations, and they were used to fabricate perovskite solar cells. The perovskite solar cell based on the structure is FTO/ silver-doped TiO2/perovskite film/spiro-OMeTAD/Ag electrode. The crystallite size of various silver-doped TiO2 electron transport layers decreases as silver doping concentration increases. After optimizing the parameters of perovskite solar cell, the short-circuit current density (Jsc) increases notably from 19.5 to 21.5 mA/cm2, and the power conversion efficiency (PCE) of the champion device with 1.0 mol% silver-doped TiO2 electron transport layer is up to 13.3%.