About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
2022 Undergraduate Student Poster Contest
|
Presentation Title |
Optical Properties of Halide Perovskite in Polymer Matrices |
Author(s) |
Lindsay Jones, Yifan Xu, Robert Hickey |
On-Site Speaker (Planned) |
Lindsay Jones |
Abstract Scope |
Hybrid organic-inorganic perovskites are an exciting class of materials with applications in solar cells or LEDs. With such a wide range of applications, scientists need a way to tune the crystals to fit specific uses. One way to do this is by controlling their size. The perovskite crystals were synthesized in four different polymer matrices that acted as macroligands. Each polymer had a different chemical structure that affected the strength of its binding to the organic portion of the perovskite. The perovskite-polymer mixtures were studied as both films and in solution, and optical properties (UV-vis absorbance and fluorescence) were observed. It was found that more chemically similar polymers to the methylammonium molecule found in the perovskite binded better and inhibited the crystals’ growth, leading to enhanced optical properties. This gives a framework for selecting polymer materials for specific applications such as LEDs or solar cells, thus improving these devices’ performance. |