Prediction of the Bandgap of a Core-Shell Microsphere via Light Intensity Fluctuations

Figure 2

Potential energy variation along the radius for a core-shell microsphere. This figure shows the meaning of the varying refractive index of the shell. The higher the refractive index (n) of the shell, the deeper the quantum well. 𝑛(𝑎)<𝑛(𝑏)<𝑛(𝑐)<𝑛(𝑑).