Intermediate Bandgap (IB) Cu₃VS_xSe_4-x Nanocrystals as a New Class of Light Absorbing Semiconductors.

ABSTRACT: A new family of highly uniform, cubic-shaped Cu₃VS_xSe_4-x (CVSSe; 0 ≤ x ≤ 4) nanocrystals based on earth-abundant materials with intermediate bandgaps (IB) in the visible range is reported, synthesized via a hot-injection method. The IB transitions and optical band gap of the novel CVSSe nanocrystals are investigated using ultraviolet-visible spectroscopy, revealing tunable band gaps that span the visible and near-infrared regimes. The composition-dependent relationships among the crystal phase, optical band gap, and photoluminescence properties of the novel IB semiconductors with progressive substitution of Se by S are examined in detail. High-resolution transmission electron microscopy and scanning electron microscopy characterization confirm the high crys

SUBMITTER: Sanchez Rodriguez JJ 

PROVIDER: S-EPMC12844221 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature