Strong quantum confinement effect in the optical properties of ultrathin {\alpha}-In2Se3

Jorge Quereda; Robert Biele; Gabino Rubio-Bollinger; Nicolás Agraït; Roberto D'Agosta; Andres Castellanos-Gomez

doi:10.1002/adom.201600365

Strong quantum confinement effect in the optical properties of ultrathin {\alpha}-In2Se3

Mesoscale and Nanoscale Physics 2016-10-19 v1 Materials Science

Authors: Jorge Quereda , Robert Biele , Gabino Rubio-Bollinger , Nicolás Agraït , Roberto D'Agosta , Andres Castellanos-Gomez

View on arXiv ↗ PDF ↗ DOI ↗

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.

Keywords

quantum confinement optical properties α-In2Se3 two-dimensional semiconductors band gap ultrathin crystals absorption spectra

Cite

@article{arxiv.1610.05505,
  title  = {Strong quantum confinement effect in the optical properties of ultrathin {\alpha}-In2Se3},
  author = {Jorge Quereda and Robert Biele and Gabino Rubio-Bollinger and Nicolás Agraït and Roberto D'Agosta and Andres Castellanos-Gomez},
  journal= {arXiv preprint arXiv:1610.05505},
  year   = {2016}
}

Comments

3 Figures + 6 Supp. Info. figures

Strong quantum confinement effect in the optical properties of ultrathin {\alpha}-In2Se3

Abstract

Keywords

Cite

Comments

Related papers