Mg–Ti–H thin films as switchable solar absorbers

Baldi, Andrea; Borsa, D.M.; Schreuders, Herman; Rector, J.H.; Atmakidis, Theodoros; Bakker, Marco; Zondag, HA Herbert; Helden, van Wgj Wim; Dam, B.; Griessen, R.

doi:10.1016/j.ijhydene.2008.01.026

Cited by 42 publications

(30 citation statements)

References 10 publications

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“…326 Hydrogenography has also been utilized as a switchable mirror technology, taking advantage of the change in transmissivity that results from hydrogenation, as well as other applications. [327][328][329][330] Hydrogenography has been applied for compositional mapping of a number of Mg based systems such as Mg-Ni, 309,331 Mg-Ni-Ti, 332 Mg-Al, 333 and Mg-Al-Ti. 334 A notable result from this body of work was the discovery 316 of the alloy Mg 69 Ni 26 Ti 5 , Fig.…”

Section: Thin Film Combinatorial Workmentioning

confidence: 99%

Applications of high throughput (combinatorial) methodologies to electronic, magnetic, optical, and energy-related materials

Green

Takeuchi

Hattrick‐Simpers

2013

Journal of Applied Physics

223

189

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High throughput (combinatorial) materials science methodology is a relatively new research paradigm that offers the promise of rapid and efficient materials screening, optimization, and discovery. The paradigm started in the pharmaceutical industry but was rapidly adopted to accelerate materials research in a wide variety of areas. High throughput experiments are characterized by synthesis of a "library" sample that contains the materials variation of interest (typically composition), and rapid and localized measurement schemes that result in massive data sets. Because the data are collected at the same time on the same "library" sample, they can be highly uniform with respect to fixed processing parameters. This article critically reviews the literature pertaining to applications of combinatorial materials science for electronic, magnetic, optical, and energy-related materials. It is expected that high throughput methodologies will facilitate commercialization of novel materials for these critically important applications. Despite the overwhelming evidence presented in this paper that high throughput studies can effectively inform commercial practice, in our perception, it remains an underutilized research and development tool. Part of this perception may be due to the inaccessibility of proprietary industrial research and development practices, but clearly the initial cost and availability of high throughput laboratory equipment plays a role. Combinatorial materials science has traditionally been focused on materials discovery, screening, and optimization to combat the extremely high cost and long development times for new materials and their introduction into commerce. Going forward, combinatorial materials science will also be driven by other needs such as materials substitution and experimental verification of materials properties predicted by modeling and simulation, which have recently received much attention with the advent of the Materials Genome Initiative. Thus, the challenge for combinatorial methodology will be the effective coupling of synthesis, characterization and theory, and the ability to rapidly manage large amounts of data in a variety of formats. V C 2013 AIP Publishing LLC. [http://dx

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Section: Thin Film Combinatorial Workmentioning

confidence: 99%

Applications of high throughput (combinatorial) methodologies to electronic, magnetic, optical, and energy-related materials

Green

Takeuchi

Hattrick‐Simpers

2013

Journal of Applied Physics

223

189

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“…The hydrogenation of Mg y Ti 1Ày thin films is also accompanied by dramatic optical changes, which make them suitable for application as hydrogen sensors [4] and smart coating for solar collectors [5]: when exposed to hydrogen gas, they exhibit fast and reversible (>100 cycles) optical transitions…”

Section: Introductionmentioning

confidence: 99%

“…A 65 nm thick film of Mg 0.7 Ti 0.3 , exposed to 5% H 2 in Ar at room temperature, hydrogenates completely in w10 s; if it is then exposed to 20% O 2 in Ar, it fully desorbs in less than 3 min, returning to its original metallic state [2]. The role of Ti is to favor the formation of a face-centered cubic hydride phase of Mg y Ti 1Ày H x (for y < 0.87 [3]) instead of the tetragonal MgH 2 -like phase.The hydrogenation of Mg y Ti 1Ày thin films is also accompanied by dramatic optical changes, which make them suitable for application as hydrogen sensors [4] and smart coating for solar collectors [5]: when exposed to hydrogen gas, they exhibit fast and reversible (>100 cycles) optical transitions …”

mentioning

confidence: 99%

Nanoscale composition modulations in MgyTi1−yHx thin film alloys for hydrogen storage

Baldi

Gremaud

Borsa

et al. 2009

International Journal of Hydrogen Energy

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IntroductionThe Mg-Ti-H system is currently attracting a lot of attention, with potential applications in very different fields. Niessen et al. [1] proposed the use of Mg-Ti thin films as high-capacity hydrogen storage materials for batteries. By means of electrochemical loading of Mg 0.8 Ti 0.2 thin films they found a gravimetrical storage capacity of 6.53 wt% H: w4 times higher than the commercially available NiMH batteries. In our group we demonstrated the possibility of gas loading of Pdcapped Mg y Ti 1Ày thin films. These films, when exposed to hydrogen gas exhibit fast and reversible transitions from the metallic to the hydrogenated state. The Ti doping of Mg greatly enhances the kinetics of hydrogen uptake and release. A 65 nm thick film of Mg 0.7 Ti 0.3 , exposed to 5% H 2 in Ar at room temperature, hydrogenates completely in w10 s; if it is then exposed to 20% O 2 in Ar, it fully desorbs in less than 3 min, returning to its original metallic state [2]. The role of Ti is to favor the formation of a face-centered cubic hydride phase of Mg y Ti 1Ày H x (for y < 0.87 [3]) instead of the tetragonal MgH 2 -like phase.The hydrogenation of Mg y Ti 1Ày thin films is also accompanied by dramatic optical changes, which make them suitable for application as hydrogen sensors [4] and smart coating for solar collectors [5]: when exposed to hydrogen gas, they exhibit fast and reversible (>100 cycles) optical transitions

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“…5,6 The driving force for the effect was the switching induced by hydrogen uptake in the films, and the films were capped by a thin layer of Pd in order to speed up this reaction. Later on, photo-induced switching of optical properties has been observed in yttrium hydride (YH x ) films illuminated by visible laser light at pressures of several GPa at room temperature.…”

mentioning

confidence: 99%

Engineering of the band gap and optical properties of thin films of yttrium hydride

You

Mongstad

Mæhlen

et al. 2014

Applied Physics Letters

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Thin films of oxygen-containing yttrium hydride show photochromic effect at room temperature. In this work, we have studied structural and optical properties of the films deposited at different deposition pressures, discovering the possibility of engineering the optical band gap by variation of the oxygen content. In sum, the transparency of the films and the wavelength range of photons triggering the photochromic effect can be controlled by variation of the deposition pressure.

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Mg–Ti–H thin films as switchable solar absorbers

Cited by 42 publications

References 10 publications

Applications of high throughput (combinatorial) methodologies to electronic, magnetic, optical, and energy-related materials

Applications of high throughput (combinatorial) methodologies to electronic, magnetic, optical, and energy-related materials

Nanoscale composition modulations in MgyTi1−yHx thin film alloys for hydrogen storage

Engineering of the band gap and optical properties of thin films of yttrium hydride

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