Structural and Electronic Properties of Qatranaite

<div>UV-Vis spectrum of qatranaite (black dots). Linear fit, according to equation (<a href="https://static.hindawi.com/articles/amse/volume-2019/4031823/figures/#EEq1">1</a>), shows the energy gap width <i>E</i><sub>g</sub>.</div>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: Structural and Electronic Properties of Qatranaite 