Band gap and pseudocapacitance of Gd₂O₃ doped with Ni_0.5Zn_0.5Fe₂O₄

Tailoring the Energy Band Gap of Transition Metal Doped TiO2 Thin Film

Water splitting for hydrogen production under sunlight using TiO2 as photo catalyst provides a better route for solar energy and attracts the attention of many researchers. The photo catalytic activity of TiO2 under sunlight irradiation depends on the band gap energy. The transition metal doped TiO2 shows an edge over TiO2 in optical absorbance and photo catalytic activity. Thin film of Cr dope...

Strain-modulated ferromagnetism and band gap of Mn doped Bi2Se3

The quantized anomalous Hall effect (QAHE) have been theoretically predicted and experimentally confirmed in magnetic topological insulators (TI), but dissipative channels resulted by small-size band gap and weak ferromagnetism make QAHE be measured only at extremely low temperature (<0.1 K). Through density functional theory calculations, we systemically study of the magnetic properties and el...

Ce-doped EuO: Magnetic properties and the indirect band gap

Direct band gap narrowing in highly doped Ge

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Investigation of band gap narrowing in nitrogen-doped La2Ti2O7 with transient absorption spectroscopy.

Doping a semiconductor can extend the light absorption range, however, it usually introduces mid-gap states, reducing the charge carrier lifetime. This report shows that doping lanthanum dititinate (La2Ti2O7) with nitrogen extends the valence band edge by creating a continuum of dopant states, increasing the light absorption edge from 380 nm to 550 nm without adding mid-gap states. The dopant s...