Fig. 4: Edges of VBMs and CBMs for 20 I2-II-IV-X4 semiconductors.
From: Unsupervised discovery of thin-film photovoltaic materials from unlabeled data

The color bar (from purple to red) shows the scale of band gap.
From: Unsupervised discovery of thin-film photovoltaic materials from unlabeled data

The color bar (from purple to red) shows the scale of band gap.