Preludes to the Lattice Compatibility Theory LCT: Urbach Tailing Controversial Behavior in Some Nanocompounds

Table 1

Values of Urbach energy for doped and undoped nano-films.

Nanofilm		𝐸𝑈 (meV)
BSO	Un-doped	842.4
	Doped	304.5
BTO	Un-doped	564.6
	Doped	559.2
BGO	Un-doped	448.7
	Doped	430.5