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Matsumoto, Tsuyoshi; Cezairliyan, A.; Basak, D

doi:10.1023/a:1022699622719

Cited by 46 publications

(29 citation statements)

References 7 publications

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“…Both the holder and the insert to the holder are made of molybdenum. For this material, the total emissivity is more constant in the growth temperature regime, and values of ε Mo = 0.09 and ε Mo = 0.12 are used for the growth and Ga-deoxidization temperature, respectively [24]. …”

Section: Substrate Temperature Gradientmentioning

confidence: 99%

Influence of the oxide layer for growth of self-assisted InAs nanowires on Si(111)

Madsen

Aagesen²,

Krogstrup

et al. 2011

Nanoscale Res Lett

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The growth of self-assisted InAs nanowires (NWs) by molecular beam epitaxy (MBE) on Si(111) is studied for different growth parameters and substrate preparations. The thickness of the oxide layer present on the Si(111) surface is observed to play a dominant role. Systematic use of different pre-treatment methods provides information on the influence of the oxide on the NW morphology and growth rates, which can be used for optimizing the growth conditions. We show that it is possible to obtain 100% growth of vertical NWs and no parasitic bulk structures between the NWs by optimizing the oxide thickness. For a growth temperature of 460°C and a V/III ratio of 320 an optimum oxide thickness of 9 ± 3 Å is found.

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Section: Substrate Temperature Gradientmentioning

confidence: 99%

Influence of the oxide layer for growth of self-assisted InAs nanowires on Si(111)

Madsen

Aagesen²,

Krogstrup

et al. 2011

Nanoscale Res Lett

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“…Tungsten and its emissivity have been studied from the beginning of the 20 th century [13][14][15][16][17][18] up to now [19][20][21][22][23][24][25]. All these studies have been performed on different kinds of samples depending on manufacturing process (roughness, grade…) and for different ranges of temperatures and wavelengths not always relevant for a direct use in fusion devices.…”

Section: Introductionmentioning

confidence: 99%

Emissivity measurement of tungsten plasma facing components of the WEST tokamak

Gaspar

Pocheau

Corre

et al. 2019

Fusion Engineering and Design

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Since tungsten (W) has been selected as material for the ITER divertor target the knowledge of the emissivity in the infrared (IR) wavelength range becomes mandatory. A dedicated setup has been developed to measure the emissivity in the wavelength range 1.7-4.75 µm and the temperature domain 200-850 °C. The paper presents the emissivity measurements on W samples coming from actively cooled bulk W components (ITER-like) and W-coated graphite component of the WEST divertor. W samples with damaged surfaces generated by transient heat load as those observed in fusion machines, including micro-cracks and crack network, are also investigated. The dependence on wavelength, temperature and surface state are shown and discussed.

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“…The filament is made of polycrystalline tungsten, the emitter of single crystalline tungsten, the reservoir of ZrO x . Matsumoto et al [Mat99] give a literature [Mat00]. And from the literature it seems not unlikely that the reservoir has a higher different emissivity than the emitter itself.…”

Section: T (K)mentioning

confidence: 99%

Physics of Schottky Electron Sources

Bronsgeest¹

2016

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Cited by 46 publications

References 7 publications

Influence of the oxide layer for growth of self-assisted InAs nanowires on Si(111)

Influence of the oxide layer for growth of self-assisted InAs nanowires on Si(111)

Emissivity measurement of tungsten plasma facing components of the WEST tokamak

Physics of Schottky Electron Sources

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