<p dir="ltr">This thesis investigates the stability of low dimensional RP perovskites. For stable perovskites, the materials will be utilized in optoelectronic applications, such as light-emitting films (Chapter 3) and quasi-2D perovskite solar cells (Chapter 5). For unstable perovskites, their degradation processes are different which depends on the halide. The bromide-based degradation process will be used for valuable organic synthesis, and iodide-based decomposed process will be applied in microplastic degradation (Chapter 4). <br><br>This dataset included all the characterization data in the thesis. Data in this folder are categorized according to the type of characterization including DEMS, GC gas, GCMS, Insitu-FTIR, NMR, UV absorption, XPS and XRD. And these uppoaded datasets are only about perovskite related materials, and are NOT related to the participation of any person, animal, or other creature. </p>