Figure 6 | Scientific Reports

Figure 6

From: Exploring optoelectronic properties and mechanisms of layered ferroelectric K4Nb6O17 nanocrystalline films and nanolaminas

Figure 6

The NIR-UV experimental (dotted lines) and best-fitted (solid lines) ellipsometric spectra (a) Ψ(E) and (b) Δ(E) of KN-Pt under 77, 100, 200, 300, 400 and 500 K. Evolution of (c) refractive index (n) and (d) extinction coefficient (κ) of KN-Pt with increasing the temperature. For clarity, the arrow indicates the absorption edge redshift with increasing the temperature. Note that Ψ, Δ, n and κ are vertically shifted by adding 40, 100, 0.5 and 0.5, respectively.

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