Effect of Annealing on Innovative CsPbI<sub>3</sub>-QDs Doped Perovskite Thin Films
oleh: Pao-Hsun Huang, Yu-Hao Chen, Shui-Yang Lien, Kuan-Wei Lee, Na-Fu Wang, Chien-Jung Huang
| Format: | Article |
|---|---|
| Diterbitkan: | MDPI AG 2021-01-01 |
Deskripsi
In this study, a simple hot-injection method to synthesize high-quality inorganic perovskite cesium lead iodide (CsPbI<sub>3</sub>) quantum-dots (QDs) was demonstrated. Adding CsPbI<sub>3</sub> QDs into the organic perovskite methylamine lead triiodide (CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>) to form a composite perovskite film, annealed by different temperatures, was found to be effectively enhanced by the perovskite crystallization. The intensity of the preferred peak (110) of MAPbI<sub>3</sub> was enhanced by increasing the size of the crystal and reducing the cluster crystal. The densest film can be found at annealing temperature of 140 °C. The full width half maximum of MAPbI<sub>3</sub> and CsPbI<sub>3</sub> was analyzed through XRD peak fitting. This was a huge breakthrough for QDs doped perovskite films.