Tunable excitonic properties in two-dimensional heterostructures based on solution-processed PbI2 flakes

We investigate the manifestations of band structure engineering in few-layer PbI 2 -based heterostructures by probing their tunable optical properties. First, we have successfully prepared atomically thin flakes from PbI 2 solution by two distinct approaches. A drop-casting of PbI 2 solution onto va...

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