Perovskites have raised interest due to their unique physical and optical properties in many fields. Adjustable bandgap, high photoluminescence quantum yield (PLQY), and a wide range of emitting colors make perovskite promising for light-emitting diodes (LEDs) devices. Up to now, too little attention has been given to understanding the growth mechanism of perovskite. Hence, establishing the growth kinetic model is a priority research focus. We explore that low temperatures could slow down the reaction rate of forming perovskite, which provides a chance for monitoring the growth kinetic of perovskite. Additionally, the low external quantum efficiency (EQE) of blue-emitting perovskites hinders their practical industrial production. Thus, another objective of this study is to investigate the effect of Mn2+/Nd3+ co-doping in blue-emitting perovskite. Finally, we achieve a blue-emitting perovskite CsPbMn1.3%Nd2.2%Br3 with a wavelength of 445 nm. This dissertation follows two case-study designs, analyzing characterization techniques (XRD, UV-visible absorption, PL, ICP) by origin and MATLAB software.
| Identifer | oai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-7332 |
| Date | 13 August 2024 |
| Creators | Yan, Rongjing |
| Publisher | Scholars Junction |
| Source Sets | Mississippi State University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
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