One-step synthesis of crystalline Mn2O3 thin film by ultrasonic spray pyrolysis

High‐Temperature Initial Oxidation Behavior in LDX 2101

“…In Figure a, the strong oxide peaks on the austenite surface in 2 min were located at 218, 238, 284, 403, and 610 cm −1 , which are the characteristic peaks of α ‐Fe 2 O 3 . The oxides on the ferrite surface comprised Mn 2 O 3 , and the corresponding strong peaks were located at 316, 369, and 658 cm −1 . After oxidation for 5 min (Figure b), the strong peaks of the oxides on the austenite surface were located at 223, 241, 287, 406, 607, and 646 cm −1 , which indicated the existence of Cr 2 O 3 and Mn 2 O 3 in the oxide films on the austenite surface besides the main iron oxides.…”

Електричні властивості і енергетичні параметри фото-чутливих гетероструктур n-Mn2O3/n-CdZnTe

“…The band gap in the solid solution was taken to equal (Cd 1− Zn Te) = 1.53 eV [29,30]. The electron affinity value (Mn 2 O 3 ) = 4.45 eV [10] was used, which was determined using the Kelvin probe method for Mn 2 O 3 films fabricated with the help of the spray pyrolysis method. The value (Mn 2 O 3 ) = 2.12 eV was calculated from the results obtained for the optical absorption in the films (Fig.…”

“…For the manufacture of thin -Mn 2 O 3 films, the spray pyrolysis [8,10] and hydrothermal [11] methods, the method of solid-state reactions in MnO 2 at its heat treatment [12], electrodeposition [13], and the sol-gel method [14] are applied. The advantages of the spray pyrolysis method among the others include a simple equipment and the convenient correction of the -Mn 2 O 3 film deposition mode to obtain the desired physical properties.…”

Realisation of CdS/Mn 3 O 4 nanocomposites for potential photocatalytic applications

“…Manganese oxide (Mn 3 O 4 ) is a transition metal with a direct bandgap of 1.2 eV [3], which is a potential material for technological applications in catalysis, ion exchange, high density magnetic storage media, solar energy conversion etc. [4]. Cadmium sulphide (CdS) is a prospective candidate for photocatalysis among the visible light active semiconductors CeO 2 , WO 3 , Fe 2 O 3 , Cu 2 O and Bi 2 S 3 owing to its appropriate band edge structure that absorbs light with a wavelength shorter than 520 nm [5].…”