Optical recording characteristics of molybdenum oxide films prepared by pulsed laser deposition method

Aoki, Takanori; Matsushita, Teruo; Mishiro, Kazuma; Suzuki, Akio; Okuda, Masahiro

doi:10.1016/j.tsf.2008.09.060

Cited by 19 publications

(4 citation statements)

References 8 publications

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“…The increase in the optical transmittance is induced by transforming oxygendeficient sub-oxide states of the as-deposited films into the oxide states. 39 Another possible reason for enhancement of transmittance could be attributed to the slightly decreasing the thickness of the films and more diffusion of oxygen upon annealing. The absorption edges were occurs in the wavelength range 350-450 nm.…”

Section: Optical Propertiesmentioning

confidence: 99%

Properties of MoO₃ films by thermal oxidation: Annealing induced phase transition

Madhavi¹,

Kondaiah²,

Rayudu³

et al. 2013

mat express

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Thin films of molybdenum oxide were grown by thermal oxidation of DC magnetron sputtered metallic molybdenum films. The deposited molybdenum metal (Mo) films were annealed in air at different temperatures in the range of 473-673 K. The effect of annealing temperature on the structural, morphological, electrical, optical and electrochemical properties was systematically investigated. X-ray photoelectron spectroscopy, X-ray diffraction and Raman studies conformed that the molybdenum films annealed at 573 K leads to the growth of mixed phase of -and -MoO 3 . While those films annealed at 673 K showed single phase of -MoO 3 . The -MoO 3 films were of polycrystalline nature with crystallite size of 22 nm and optical band gap of 3.31 eV. The electrical resistivity of the Mo films is 6 × 10 −5 cm and it was increased to 3.2 × 10 −3 cm when the films annealed at 673 K. From the electrochemical studies, it is observed that, the films annealed at 673 K showed good electrochromic and cyclic voltammetric response.

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Section: Optical Propertiesmentioning

confidence: 99%

Properties of MoO₃ films by thermal oxidation: Annealing induced phase transition

Madhavi¹,

Kondaiah²,

Rayudu³

et al. 2013

mat express

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show abstract

“…Also, MoO 3 thin lms have potential application in important devices, including optical memories [2], gas sensors [3], catalysis [4], electrochromic devices (ECDs) [5] and lithium batteries [6]. However, the device eciency is essentially related to the structure and surface morphology of the lms which in turn invariably depends on the deposition technique and deposition parameters used for the growth of thin lms.…”

mentioning

confidence: 99%

Influence of Thermal Oxidation Temperatures on the Structural and Morphological Properties of MoO₃Thin Films

et al. 2013

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In this study, molybdenum (Mo) thin lms have been deposited on Si substrate by dc magnetron sputtering. Then for preparation of MoO3 thin lms the thermal oxidation of Mo thin lms under the oxygen ow was employed in the electrical furnace. The inuence of the dierent thermal oxidation temperatures at 400, 600, 800 and 1000• C on the structural and morphological properties of MoO3 thin lms were characterized by X-ray diraction and atomic force microscopy, respectively. The results show that the crystallinity and surface morphology of the lms are strongly dependent on the thermal oxidation temperatures.

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“…The increase in the optical transmittance obtained by annealing can be explained by transforming oxygen deficient sub-oxide states of the asdeposited films into the oxide states. 28) In addition, the absorption edge shifted towards the lower wavelength side after annealing, implying the increase of the optical band gap of MoO 3 . The total absorption coefficient α was further calculated from transmittance and reflection measurements with the aid of the expression 27)…”

Section: Temperature (°C)mentioning

confidence: 99%

The effect of air annealing on the properties of MoO₃films and its application for organic light emitting diodes

Kao

Chen

Yen

et al. 2018

Jpn. J. Appl. Phys.

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In the present work, post-annealing modification in air was performed on the MoO3 films and its effect on the optoelectronic characteristics of organic light-emitting diodes (OLEDs) was investigated. When MoO3 was annealed at the proper temperature, the electroluminescent performances of OLEDs were improved. X-ray photoelectron spectroscopy (XPS) and Raman studies revealed that the air annealing process resulted in more crystalline and nearly stoichiometric in MoO3, leading to the enhancement of the photoluminescence (PL) intensity and transmittance. Moreover, the reduced oxygen vacancies caused by air annealing increase the work function of MoO3, resulting in the energy barrier reduction at the ITO/NPB interface, and consequently facilitating the hole injection and improving OLED performances.

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Optical recording characteristics of molybdenum oxide films prepared by pulsed laser deposition method

Cited by 19 publications

References 8 publications

Properties of MoO₃ films by thermal oxidation: Annealing induced phase transition

Properties of MoO₃ films by thermal oxidation: Annealing induced phase transition

Influence of Thermal Oxidation Temperatures on the Structural and Morphological Properties of MoO₃Thin Films

The effect of air annealing on the properties of MoO₃films and its application for organic light emitting diodes

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Optical recording characteristics of molybdenum oxide films prepared by pulsed laser deposition method

Cited by 19 publications

References 8 publications

Properties of MoO3 films by thermal oxidation: Annealing induced phase transition

Properties of MoO3 films by thermal oxidation: Annealing induced phase transition

Influence of Thermal Oxidation Temperatures on the Structural and Morphological Properties of MoO3Thin Films

The effect of air annealing on the properties of MoO3films and its application for organic light emitting diodes

Contact Info

Product

Resources

About

Properties of MoO₃ films by thermal oxidation: Annealing induced phase transition

Properties of MoO₃ films by thermal oxidation: Annealing induced phase transition

Influence of Thermal Oxidation Temperatures on the Structural and Morphological Properties of MoO₃Thin Films

The effect of air annealing on the properties of MoO₃films and its application for organic light emitting diodes