Atomic layer deposition of ferromagnetic iron oxide films on three-dimensional substrates with tin oxide nanoparticles

Tamm, Aile; Dimri, Mukesh C.; Kozlova, Jekaterina; Aidla, Aleks; Tätte, Tanel; Arroval, Tõnis; Mäeorg, Uno; Mändar, Hugo; Stern, Raivo; Kukli, Kaupo

doi:10.1016/j.jcrysgro.2011.09.062

Cited by 28 publications

(31 citation statements)

References 30 publications

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“…In the growth experiments we used ferrocene as the iron precursor, which is widely used in the growth of binary and ternary oxides . However, long exposure and incubation times are required to achieve a saturated growth . Triphenyl‐bismuth was used as the second component for the BFO growth.…”

Section: Resultsmentioning

confidence: 99%

“…[9,17,20] However,l ong exposure and incubation times are required to achieve as aturatedg rowth. [28,29] Triphenyl-bismuth was used as the second component for the BFO growth. This precursorw as already tried in the growth of Bi 2 Ti 2 O 7 films, but proved to be unfavorable when oxidized by H 2 O 2 due to the inability to produce pure Bi 2 O 3 films and difficulty in reaching ar atio of Bi/Ti = 1.…”

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confidence: 99%

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Formation of BiFeO₃ from a Binary Oxide Superlattice Grown by Atomic Layer Deposition

et al. 2017

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We report on the growth of polycrystalline BiFeO thin films on SiO /Si(001) and Pt(111) substrates by atomic layer deposition using the precursors ferrocene, triphenyl-bismuth, and ozone. By growing alternating layers of Fe O and Bi O , we employ a superlattice approach and demonstrate an efficient control of the cation stoichiometry. The superlattice decay and the resulting formation of polycrystalline BiFeO films are studied by in situ X-ray diffraction, in situ X-ray photoelectron spectroscopy, and transmission electron microscopy. No intermediate ternary phases are formed and BiFeO crystallization is initiated in the Bi O layers at 450 °C following the diffusion-driven intermixing of the cations. Our study of the BiFeO formation provides an insight into the complex interplay between microstructural evolution, grain growth, and bismuth oxide evaporation, with implications for optimization of ferroelectric properties.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Formation of BiFeO₃ from a Binary Oxide Superlattice Grown by Atomic Layer Deposition

et al. 2017

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“…Each cycle is characterized by a timing-sequence of t 1 -t 2 -t 3 -t 4 such that t 1 and t 3 correspond to the first and the second precursor exposure times, and t 2 and t 4 represent the first and the second purge times, respectively [9,10]. Since the same deposition thickness is obtained at the end of each cycle, the desired film thickness can be controlled precisely by the number of ALD cycles.…”

Section: Introductionmentioning

confidence: 99%

Investigating atomic layer deposition characteristics in multi-outlet viscous flow reactors through reactor scale simulations

Shaeri

Jen

Yuan

et al. 2015

International Journal of Heat and Mass Transfer

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“…The hematite -Fe 2 O 3 with bandgap 2.2 eV has been considered as a potential candidate due to its low cost, chemical stability, widespread availability and high absorbance. 6 The various methods have been used to deposit the iron oxide thin films, including sol-gel deposition 7 spray pyrolysis, 8 chemical vapor deposition, 9 atomic layer deposition 10 and electrodeposition method. 11 Among these methods, the spray pyrolysis has many advantages as simplicity, low cost and large area depositions 12 Article and easily adjusting the various deposition parameters to prepare homogeneous thin films using various spray solutions.…”

Section: Introductionmentioning

confidence: 99%

Photoelectrocatalytic oxidation of Rhodamine B with sprayed α-Fe2O3 photocatalyst

Mahadik¹,

Shinde²,

Mohite³

et al. 2013

Mat Express

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Spray deposited iron oxide thin films have been synthesized using ferric trichloride precursor in ethanolic medium. The effect of deposition temperature onto photochemical, structural, morphological, optical, luminescence and thermal properties has been investigated. Structural analysis confirms -Fe 2 O 3 (hematite) phase with rhombohedral crystal structure. The SEM images of optimized Fe 2 O 3 thin films show needle like structure with varying grain size from 120-250 nm. The observed direct band gap is varying from 2.16 to 2.21 eV with substrate temperature. Room temperature photoluminescence spectra showed three pronounced emission peaks such as, UV near-band-edge emission peak around 380-436 nm, a blue emission around 468 nm, and green emission around 560 nm. The XPS results revealed the presence of Fe 3+ in Fe 2 O 3 photoelectrode. The photocatalytic oxidation of Rhodamine B (RhB) with hematite Fe 2 O 3 thin films under solar illumination is investigated. The first order rate constants of photocatalysis are evaluated as a function of the initial concentration of RhB. The extent of mineralization has been studied by analyzing total organic carbon (TOC) and chemical oxygen demand (COD). The estimated values of COD, TOC are decreases from 82 to 9.6 mg/l and 78.7 to 13.9 mg/l respectively.

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Atomic layer deposition of ferromagnetic iron oxide films on three-dimensional substrates with tin oxide nanoparticles

Cited by 28 publications

References 30 publications

Formation of BiFeO₃ from a Binary Oxide Superlattice Grown by Atomic Layer Deposition

Formation of BiFeO₃ from a Binary Oxide Superlattice Grown by Atomic Layer Deposition

Investigating atomic layer deposition characteristics in multi-outlet viscous flow reactors through reactor scale simulations

Photoelectrocatalytic oxidation of Rhodamine B with sprayed <I>α</I>-Fe<SUB>2</SUB>O<SUB>3</SUB> photocatalyst

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Atomic layer deposition of ferromagnetic iron oxide films on three-dimensional substrates with tin oxide nanoparticles

Cited by 28 publications

References 30 publications

Formation of BiFeO3 from a Binary Oxide Superlattice Grown by Atomic Layer Deposition

Formation of BiFeO3 from a Binary Oxide Superlattice Grown by Atomic Layer Deposition

Investigating atomic layer deposition characteristics in multi-outlet viscous flow reactors through reactor scale simulations

Photoelectrocatalytic oxidation of Rhodamine B with sprayed <I>α</I>-Fe<SUB>2</SUB>O<SUB>3</SUB> photocatalyst

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Formation of BiFeO₃ from a Binary Oxide Superlattice Grown by Atomic Layer Deposition

Formation of BiFeO₃ from a Binary Oxide Superlattice Grown by Atomic Layer Deposition