Strong quantum confinement effect in the optical properties of ultrathin {α}-In2Se3
classification
❄️ cond-mat.mes-hall
cond-mat.mtrl-sci
keywords
alphain2se3opticalbandconfinementcrystalseffectquantum
read the original abstract
The effect of quantum confinement in the optical absorption spectra of atomically thin {\alpha}-In2Se3 crystals is studied, observing a huge thickness-dependent shift in the optical band gap of exfoliated {\alpha}-In2Se3 flakes. The band gap variation reported here is among the largest found in semiconductor crystals and spans a region of the near-UV spectrum uncovered by other 2D semiconductors.
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