Research plan
Halide perovskites have emerged as the most exciting new semiconductor for optoelectronic devices (solar cells, LEDs, radiation detectors) over the last decade. Their performance matches or exceeds that of traditional semiconductors, but their relatively poor stability under a wide variety of stresses (chemical, electrical, light, heat) is limiting their commercialization. We will develop a new characterization tool that allows us to watch how halide perovskites change under light or electrical bias with nanometer spatial resolution. With this understanding we will control the halide perovskite (in)stability either to eliminate degradation or make programmable materials that can be trained to reconfigure their properties according to the desired output.
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