About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPU-2: Electrochromic Phase Transition in Sn-based Mixed Halide Perovskite |
Author(s) |
Ryan Hawks, Zhizhong Chen, Jian Shi |
On-Site Speaker (Planned) |
Ryan Hawks |
Abstract Scope |
Smart photovoltaic windows are a green technology that allows for adjustable transparency and functionality as a solar cell. Cesium tin iodide/ bromide serves as a non-toxic potential candidate for its absorbing component as the intrinsic materials may have an electrochromic phase transition under applied voltage. In this work, both the thermochromic and electrochromic phenomenon in cesium tin iodide/ bromide thin films are being explored. Thin films are synthesized from solution using a doctor blade method onto an ITO/glass slide and are capped with polydimethylsiloxane to prevent oxidation. Thermochromic behavior is verified by directly heating the film and observing a visible color change, denoting a phase transformation. The electrochromic phenomenon caused by joule heating is studied as a function of applied bias and current density, with devices developed to measure performance and stability. Our work suggests a possible solution for future smart windows |
Proceedings Inclusion? |
Undecided |