[Retracted] Application of Laser Raman Spectroscopy of Ferroelectric Nanomaterial BaTiO₃ in the Design of Color Spotlight Products on Stage

Table 2

Relationship between nanoparticle size and surface atomic number.

Particle size (nm)	Number of atoms included	Surface atomic ratio (%)	Surface energy/total energy
10	30000	20	7.6
5	4000	40	14.3
2	250	80	35.3
1	30	99	82.2