Effects of annealing on structure and composition of LSMO thin films

Xie, Haipeng; Huang, Han; Cao, Ning; Zhou, Conghua; Niu, Dongmei; Gao, Yongli

doi:10.1016/j.physb.2015.07.032

Cited by 49 publications

(22 citation statements)

References 42 publications

(61 reference statements)

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“…The (110) peak shifts toward low-angle direction at annealing temperature 800 ºC, attributed to the lattice constant increases because of Mn 4+ ionic changing to Mn 3+ and this in accordance with Ref. [12] and also higher temperature.…”

Section: Resultssupporting

confidence: 86%

Sol-Gel Derived La0.7Sr0.3MnO3 Thin Films by Pulsed Laser Deposition

El-Aziem¹,

Badr²,

El–Khatib³

et al. 2016

JMSE-B

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La 0.7 Sr 0.3 MnO 3 (LSM) nancomposite was synthesized using sol gel method at 600 ºC. The structure and elemental analysis were confirmed by X-ray diffraction (XRD) and energy dispersive X-Ray (EDX) respectively with rhombohedral crystal structure. High resolution transmission electron microscope (HR-TEM) imaging showed that the prepared LSM has uniform shape with particle sizes ranging between 5 and 95 nm, and lattice fringes also displayed the rhomobhedral structure. Thin films of LSM with 97 nm were deposited on clean Si (100) single crystal substrate by PLD using Nd:YAG (1,064 nm) with 10 Hz repetition rate and 6 ns pulse duration at room temperature in high vacuum of ~6 × 10 -6 torr. LSM films were annealed at temperatures of 400, 600, 800 and 1,000 ºC for 2 h. The XRD indicated that crystallization is enhanced by increasing annealing temperature. Additionally, grain size was increased by rising annealing temperature as indicated from field emission scanning electron microscope (FESEM) imaging. The average roughness (R a ) and root mean square roughness (R q ) were decreased by increasing annealing temperature up to 600 ºC then increased by further temperature increasing as showed by atomic force microscope (AFM) images. Raman spectra were recorded in wave numbers 100-1,000 cm -1 and all major peaks appeared at annealing temperature 1,000 ºC.

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Section: Resultssupporting

confidence: 86%

Sol-Gel Derived La0.7Sr0.3MnO3 Thin Films by Pulsed Laser Deposition

El-Aziem¹,

Badr²,

El–Khatib³

et al. 2016

JMSE-B

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show abstract

“…The optical images were taken with a CaiKang DMM‐200C optical microscope. AFM images were captured with Agilent 5500 SPM in tapping mode . Raman spectra, Raman mappings, and PL spectra were collected with WITec alpha 300 Raman microscope using 532 nm excitation with a laser power of 1 mW.…”

Section: Methodsmentioning

confidence: 99%

From MoO₂@MoS₂ Core–Shell Nanorods to MoS₂ Nanobelts

Shi

Zheng

et al. 2018

Physica Status Solidi (b)

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One‐dimensional (1D) atomically thin crystals have attracted considerable interests due to their unique properties and potential applications. For example, reducing graphene physical size down to nanoscale to nanoribbons opens up band gaps, which makes graphene useful in electronic devices. Here, a facile approach to produce single‐ and bi‐layered MoS2 nanobelts by PMMA assisted decoupling of MoO2@MoS2 core–shell nanorods is reported by the authors. Atomic force microscopy (AFM), Raman and photoluminescence (PL) results show that the decoupled monolayer staple‐like MoS2‐shells can fold into bilayer nanobelts during the PMMA removal process. Raman, high‐resolution transmission electron microscopy (HRTEM) and selected area electron diffraction (SAED) results reveal that the left MoO2 nanorods exhibit high crystal‐quality. These findings provide a method to produce 1D MoS2 nanobelts, which have potential applications in electronics and catalysis.

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“…For XPS, a resolution of 0.65 eV of the spectrometer was chosen with a pass energy of 40 eV. The binding energies of all XPS were calibrated and referenced to the Femi level (E F ) of the sample [28][29][30][31]. The morphology of the perovskite films was measured ex situ using an Agilent 5500AFM/SPM system.…”

Section: Methodsmentioning

confidence: 99%

Modification of FA0.85MA0.15Pb(I0.85Br0.15)3 Films by NH2-POSS

et al. 2021

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The surface composition and morphology of FA0.85MA0.15Pb(I0.85Br0.15)3 films fabricated by the spin-coating method with different concentrations of NH2-POSS were investigated with atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS), angle-resolved X-ray photoelectron spectroscopy (AR-XPS), and Fourier transform infrared spectroscopy (FTIR). It was found that the surface composition of the FA0.85MA0.15Pb(I0.85Br0.15)3 films was changed regularly through the interaction between NH2-POSS and the perovskite film. The corresponding surface morphological changes were also observed. When the concentration of NH2-POSS exceeded 10 mg/mL, a lot of cracks on the surface of the perovskite film were observed and the surface morphology was damaged. The surface composition and its distribution can be adjusted by changing the concentration of NH2-POSS and the proper concentration of NH2-POSS can substantially improve the quality of perovskite film.

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Effects of annealing on structure and composition of LSMO thin films

Cited by 49 publications

References 42 publications

Sol-Gel Derived La0.7Sr0.3MnO3 Thin Films by Pulsed Laser Deposition

Sol-Gel Derived La0.7Sr0.3MnO3 Thin Films by Pulsed Laser Deposition

From MoO₂@MoS₂ Core–Shell Nanorods to MoS₂ Nanobelts

Modification of FA0.85MA0.15Pb(I0.85Br0.15)3 Films by NH2-POSS

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Effects of annealing on structure and composition of LSMO thin films

Cited by 49 publications

References 42 publications

Sol-Gel Derived La0.7Sr0.3MnO3 Thin Films by Pulsed Laser Deposition

Sol-Gel Derived La0.7Sr0.3MnO3 Thin Films by Pulsed Laser Deposition

From MoO2@MoS2 Core–Shell Nanorods to MoS2 Nanobelts

Modification of FA0.85MA0.15Pb(I0.85Br0.15)3 Films by NH2-POSS

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Product

Resources

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From MoO₂@MoS₂ Core–Shell Nanorods to MoS₂ Nanobelts