Good question. Couldn't see any immediate answer. They characterize the device at 300C, but the supplemental material[1] shows experimental data on the phosphor

Good question. Couldn't see any immediate answer. They characterize the device at 300C, but the supplemental material[1] shows experimental data on the phosphorus layer up to 600C. [1]: https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fadvs.202306013&file=advs6836-sup-0001-SuppMat.pdf https://onlinelibrary.wiley.com/action/downloadSupplement?do...