Optical, surface, and microstructural properties of Li4Ti5O12 thin films coated by RF magnetron sputtering. (17th November 2018)

• Record Type: Journal Article
• Authors: Yudar, H. Hakan; Pat, Suat; Korkmaz, Şadan; Özen, Soner; Pat, Zerrin
• Is Part Of: Particulate science and technology. Volume 36:Number 8(2018)
• Page Start: 1037
• Page End: 1042
• Publication Date: 2018-11-17
• Subjects: Anode materials -- Li4Ti5O12 -- plasma -- RF magnetron sputter technique -- thin film electrodes; Particles -- Periodicals; 620.43
• DOI: 10.1080/02726351.2017.1340378
• Languages: English
• ISSNs: 0272-6351

Abstract

ABSTRACT: Li4 Ti5 O12 thin films were deposited on glass substrates by the RF magnetron sputtering method in an argon gas atmosphere at different powers. Some properties of the coated Li4 Ti5 O12 films were examined using some techniques. Structural characteristics of the produced Li4 Ti5 O12 films were investigated by X-ray diffraction. The Li4 Ti5 O12 phases were identified as (311) and (222). The surface morphology of the produced Li4 Ti5 O12 films was investigated using an atomic force microscope. The transmittance and the absorbance were measured using a UV–vis spectrophotometer. The transmittance values were around 88% and 90%. The absorbance values were approximately 0.053 and 0.048. The film thickness values were 140 and 50 nm. The transparency values of the produced films were high. The optical band gap values of the produced LTO films were calculated as ∼3.8 eV. The refractive index and the reflectance spectra values of samples were determined using interferometer measurements. The refractive index values were 1.51 and 1.44 at 550 nm, respectively.