Preparation of Perovskite Active Layer and TiO2 Electron Transport Layer Applied for Perovskite Solar Cell
| Autor: | YUAN-HAO HSU, 許元豪 |
|---|---|
| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 In order to prepare a high quality perovskite active layer while avoiding complex and time-consuming processes, the perovskite active layer is prepared by using one-step spin-coating method. In order to control the completion and amount of the perovskite grains, the toluene dumping time in the one-step spin-coating method is used to prepare the perovskite active layer of perovskite solar cell (PSC). The electron transport layer (ETL) is prepared by using spin-coating method, where the electron transport layer includes both compact layer (CL) and mesoporous layer (ML). The compact layers with different thicknesses are prepared by using different rotational speeds, and the mesoporous layers are prepared by using different TiO2 materials: TiO2 powder P90 (P90) or TiO2 paste T (T). The PSCs are prepared by using these perovskite active layers and electron transport layers, while the performances of PSCs are investigated. In the first part of this study, one-step spin-coating method is used to prepare perovskite active layers by using different toluene dumping time. The result implies that the highest photoelectric conversion efficiency (PCE) of the PSC is 5.29%, in which the perovskite active layer of PSC is prepared with toluene dumping at the fifth second. In the second part of this study, the TiO2 compact layer is prepared with different rotational speeds, and the TiO2 mesoporous layer is prepared by using different TiO2 materials: TiO2 powder P90 (P90) and TiO2 paste T (T). The result implies the thickness of compact layer with a rotational speed of 5000 rpm in 30 seconds is 35 nm, on which a mesoporous layer of TiO2 (T) is stacked as electron transport layer in PSC and the PSC has the best performances, where the open-circuit voltage (Voc) is 0.95 V, the short-circuit current density (Jsc) is 18.45 mA/cm2, the fill factor (F.F.) is 0.42, and the photoelectric conversion efficiency (PCE) is 7.45%. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
| Externí odkaz: |
|