Effect of Mn doping on the structural and optical properties of ZrO2 thin films prepared by sol–gel method

Tailoring structural and optical properties of ZrO2 with nickel doping

“…With the increase in Ni doping beyond 1%, there was increase in crystallite size. This increase in crystallite size is due to the increase in abundance of Ni in the host material, which leads to the large grain growth of Ni doped ZrO 2 [51] and agglomeration of grains around dopant material [36].…”

“…ZrO 2 is a photo-catalytic and active photon absorber having wide band gap with two direct band to band transitions at 5.2 eV and 5.79 eV [33]. Valence band of zirconia is mainly constructed by 2p states of oxygen with some amalgamate of 4p states of Zr and conduction band is primarily formed by 4p states of Zr with some mixing of 2p states of oxygen [36]. Optical band gap can be decreased or increased in comparison to the undoped host material.…”

Benefits of the controlled reactive high-power impulse magnetron sputtering of stoichiometric ZrO2 films

“…This might be caused by the additional energy of the Oions at the target surface provided by the backscattering of O atoms from the target (Table 3). bulk ZrO 2 (n 550 = 2.17 [61]) and ZrO 2 thin films (n = 2.11 [62], n 550 ≤ 2.15 [63], n 550 ≤ 2.17 [64], n 633 ≤ 2.19, being the limit of a dependence of the refractive index on packing density [65], and n 550 ≤ 2.22 [37] in Ref. [67] and H ≤ 17 GPa for the tetragonal phase densified by a slight Al doping in Ref.…”

Optical enhancement of Au doped ZrO2 thin films by sol–gel dip coating method

“…The X-ray diffraction patterns revealed a mixed phase of tetragonal and monoclinic ZrO 2 with a preferred orientations along 2θE30.21 for T(111) and 28.65 for M(-111) [1,5]. Moreover, the Au doped films consist of an additional peak from 2θE 38.2 to 38.38 which is due to Au atom of FCC(111) crystalline structure [JCPDS file no: 65-2870].…”

“…It is due to the intentional defects generated by doping ions, which may have a profound effect on the electronic and optical properties of the materials. [4][5][6][7][8] Further when the noble metals are doped with wide band gap semiconductor (ZrO 2 ) it can create new opportunities for plasmonic manipulation of light because of the plasmon resonance frequency of noble metals [9,10]. The presence of noble metals such as Au and Ag nanoparticles (NPs) in the ZrO 2 matrix, cause strong light absorption band in the visible region known as Localized surface plasmon resonance (LSPR).…”