Table 1 Comparison of reported band gap values of different NiCo2O4 nanostructures
From: Temperature-Dependent Electrical Transport Properties of Individual NiCo2O4 Nanowire
Nanostructures of NiCo2O4 | The values of Eg (electron transition types) | Size dimension: D = diameter, L = length, T = thickness | ||
|---|---|---|---|---|
O-2p orbital to high-spin Co-3d orbital | Low-spin to high-spin orbital of Co-3d | |||
Core-rings [30] | 3.63 eV | 2.06 eV | D: 80–150 nm | T: 10–20 nm |
Nanoplates [32] | 2.90 eV | 1.80 eV | D: 3 μm | T: 70 nm |
Nanowires | 2.30 eV | 1.20 eV | D: 200 nm | L: 3–5 μm |