Optical properties of highly C-oriented Bi3TiNbO9 thin films grown on fused silica substrates by PLD

Epitaxial Bi5Ti3FeO15 thin films on Nb‐doped SrTiO3 substrates

“…Thus, layered perovskite thin films are very difficult to deposit as a ‐oriented epitaxial films. In addition, layered perovskite thin films with mixed crystallinity of a ‐oriented crystallinity and c ‐oriented crystallinity were reported in the previous reports 32,33 . When a ‐oriented crystallinity and c ‐oriented crystallinity have mixed crystallinity, the superiority of crystallinity is compared.…”

“…Accordingly, the epitaxial BTFO thin films were deposited on single crystal (100) Nb:STO substrates as shown in Figure 1A. In previous reports, it was reported that Aurivilius‐layered ferroelectric thin films, such as SrBaTiO 3 (SBT) thin films, form c ‐oriented crystallinity at high substrate temperatures and a ‐oriented crystallinity at relatively low substrate temperatures 13,30,31 . To change the crystallinity of the epitaxial BTFO thin films, the substrate temperature and thin film deposition rate were adjusted.…”

Investigation on upconversion photoluminescence of Bi3TiNbO9:Er3+:Yb3+ thin films

“…Doping high refractive index dielectric materials with rare-earth (RE) ions is one of the most promising approaches. Bi 3 TiNbO 9 thin film has good nonlinear optical properties and excellent optical waveguide properties [4,5]. Compared with other optical materials, Bi 3 TiNbO 9 has superior qualities, such as broad transparency range (0.2-2.5 mm), high refractive index (42.2), large band gap (3.4 eV), and excellent physical and chemical stability [4].…”

Effect of lanthanum doping on linear and nonlinear-optical properties of Bi3TiNbO9 thin films

“…Recent research exhibited that most bismuth layer-structured ferroelectric (BLSF) thin films, a kind of lead-free materials, also have excellent linear and nonlinear optical properties [3][4][5]. Among BLSF materials, Bi 3 TiNbO 9 (BTN) has attracted more attention due to its high Curie temperature (T c > 900 • C) [3,[6][7][8]. There are a number of investigations on the crystal structure, synthesis and electrical properties of La 3+ doped BLSF ceramics [9][10][11][12].…”

“…Although ferroelectric (Pb,La)(Zr,Ti)O 3 (PLZT) thin films with perovskite structure are well-known candidates, which have attracted much attention in the past decade [1,2], the toxicity of lead restricts its applications in certain areas. Recent research exhibited that most bismuth layer-structured ferroelectric (BLSF) thin films, a kind of lead-free materials, also have excellent linear and nonlinear optical properties [3][4][5]. Among BLSF materials, Bi 3 TiNbO 9 (BTN) has attracted more attention due to its high Curie temperature (T c > 900 • C) [3,[6][7][8].…”