Research of Selective Colorful Perovskite Solar Cells by Organic Fabry-Perot Interference Structure
| Autor: | GUO, SUE-WEI, 郭書瑋 |
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| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 Green buildings take advantage of both solar energy and energy-efficient building curtains or ceilings to reduce the use of air conditioners to achieve environmentally friendly and efficient using of resources. In this research, a perovskite solar cell was prepared by one-step spin coating method. Then, the organic Fabry-Perot color electrode was designed with the Essential Macleod software. The last, a perovskite solar cell combined with the organic Fabry-Perot color electrode was applied to building integrated photovoltaic (BIPV). This research was done with two parts. The first part was the preparation of the organic Fabry-Perot color electrode. There were two designs of organic Fabry-Perot electrodes with the hole-type or electronic-type transportation. The hole-type organic polymer material is PEDOT:PSS and the electronic-type organic small molecule material is PCBM. The thickness of the PEDOT:PSS is designed to 90 nm, 120 nm, 170 nm and the thickness of the PCBM is deigned to 60 nm, 80 nm, and 110 nm, respectively. These thickness variations will produce three primary colors of blue, green, and red, respectively. The second part was to investigate the influence of perovskite precursor concentration (0.75 M, 1 M, 1.25 M, 1.5 M, 1.75 M) on the electrical performance of perovskite solar cells. The surface coverage increased from 48.91% to 54.47% with the precursor concentration increasing from 0.75 to 1.75M by the scanning electron microscope (SEM) image. Simultaneously, the surface grain size increased from 14532.9 nm2 to 42833.1 nm2 with the increasing of precursor concentration from 0.75 M to 1.5 M by the image-J image. The grain size of the perovskite decreased from 47.63 nm to 28.22 nm with the precursor concentration increasing from 0.75 M to 1.5 M by the x-ray diffraction spectra. There are eight main diffraction peaks for perovskite material. The efficiency of perovskite cell increased from 3.9% to 6.07% with the precursor concentration increasing from 0.75 M to 1.5 M, and resulted to the open circuit voltage increasing from 0.72 V to 0.95 V. The organic colored perovskite solar cell was prepared by both methods of vapor deposition and spin coating. Then, the sunlight is reflected back to the perovskite by Fabry-Perot structure to form the secondary absorption. However, in order to achieve the color effect, the concentration of the precursor must be lowered, and discard a bit of efficiency to allow the light to transmit. The organic colored perovskite solar cell has power conversion efficiency (PCE) was up to 5.64 %. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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