An accelerator facility for WDM, HEDP, and HIF investigations in Nazarbayev University

Kaikanov, Marat; Baigarin, Kanat; Tikhonov, Alexander; Urazbayev, A; Kwan, J.W.; Henestroza, E.; Ремнев, Г. Е.; Shubin, B. G.; Stepanov, А. V.; Shamanin, V. I.; Waldron, W.L.

doi:10.1088/1742-6596/717/1/012099

Cited by 6 publications

(4 citation statements)

References 5 publications

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“…We irradiated the prepared amorphous and crystalline samples with intense pulsed ion beam (IPIB) with ion beam current densities from 10 A/cm 2 to 32 A/cm 2 . We performed IPIB irradiation by the INURA accelerator installed at Nazarbayev University (Nur-Sultan, Kazakhstan) [ 40 ]. INURA is a pulsed-power architecture ion accelerator with a total power consumption less than 10 kW.…”

Section: Methodsmentioning

confidence: 99%

Improving Photoelectrochemical Activity of Magnetron-Sputtered Double-Layer Tungsten Trioxide Photoanodes by Irradiation with Intense Pulsed Ion Beams

et al. 2022

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The photoelectrochemical (PEC) activity of metal oxide photoelectrodes for water-splitting applications can be boosted in several different ways. In this study, we showed that PEC activity can be significantly improved with a double-layer (crystalline-amorphous) configuration of WO3 thin films irradiated with intense pulsed ion beams (IPIB) of a nanosecond duration. It was found that IPIB irradiation promotes the formation of crystalline and sponge-like WO3 structures on the surface. Due to an increase in the active surface and light scattering in irradiated samples, photocurrent generation increased by ~80% at 1.23 reversible hydrogen electrodes (RHE).

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Section: Methodsmentioning

confidence: 99%

Improving Photoelectrochemical Activity of Magnetron-Sputtered Double-Layer Tungsten Trioxide Photoanodes by Irradiation with Intense Pulsed Ion Beams

et al. 2022

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“…The coating procedure was repeated four times to increase the density of AgNWs. Subsequently, the AgNW networks on the PET substrate were treated by one pulse of IPIB with different beam current densities at the Innovative Nazarbayev University's Research Accelerator (INURA) facility [35]. The obtained samples were irradiated with a single IPIB pulse with a total duration of 200 ns, consisting of protons with a peak kinetic energy of 300 keV.…”

Section: Fabrication Of Flexible Tcfsmentioning

confidence: 99%

“…high-current density) pulsed ion beam (IPIBs) is used to enhance the conductivity of AgNW percolating network, deposited on top of the temperature-sensitive polyethylene terephthalate (PET) substrate. In the context of beam-matter interaction, there is an important difference between the irradiation with low current density continuous beams (μA cm −2 ), discussed above, and high-intensity IPIBs (tens of A cm −2 and higher): the same number of particles is being delivered to the sample within significantly lower amount of time (min/ hours versus nanoseconds) [35,36]. As a result, the IPIB irradiation is accompanied with an enormous, but very short-lasting heat generation, restrained in the top few micrometers, while keeping the bulk of the substrate at low temperature.…”

Section: Introductionmentioning

confidence: 99%

Electrical conductivity enhancement of transparent silver nanowire films on temperature-sensitive flexible substrates using intense pulsed ion beam

et al. 2021

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Silver nanowire (AgNW) networks have attracted particular attention as transparent conductive films (TCF) due to their high conductivity, flexibility, transparency, and large scale processing compatible synthesis. As-prepared AgNW percolating networks typically suffer from high contact resistance, requiring additional post-synthetic processing. In this report, large area irradiation with 200 ns short intense pulsed ion beam (IPIB) was used to anneal and enhance the conductivity of AgNW network, deposited on temperature-sensitive polyethylene terephthalate (PET) substrate. A TCF sheet resistance shows irradiation dose dependence, decreasing by four orders of magnitude and reaching a value of 70 Ω/sq without damaging the polymer substrate, which retained a transparency of 94%. The IPIB irradiation fused AgNW network into the PET substrate, resulting in a great adhesion enhancement. Heat transfer simulations show that the heat originates at the near-surface layer of the TCF and lasts an ultra-short period of time. Obtained experimental and simulation results indicate that the irradiation with IPIBs opens new perspectives in the low-temperature annealing of nanomaterials deposited on temperature-sensitive substrates.

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“…The irradiation of AgNWs was carried out on INURA pulsed ion accelerator (Nur-Sultan, Kazakhstan) [42]. As a final step, TCCs were irradiated by a single pulse of IPIB with following parameters: full pulse width is 200 ns, accelerating voltage is 300 kV, beam current density is j = 30 A/cm 2 .…”

Section: Fabrication Of Transparent Conductive Filmsmentioning

confidence: 99%

Modification of Silver Nanowire Coatings with Intense Pulsed Ion Beam for Transparent Heaters

et al. 2020

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In this report, an improvement of the electrical performance and stability of a silver nanowire (AgNW) transparent conductive coating (TCC) is presented. The TCC stability against oxidation is achieved by coating the AgNWs with a polyvinyl alcohol (PVA) layer. As a result, a UV/ozone treatment has not affected the morphology of the AgNWs network and the PVA protection layer, unlike non-passivated TCC, which showed severe degradation. The irradiation with an intense pulsed ion beam (IPIB) of 200 ns duration and a current density of 30 A/cm2 is used to increase the conductivity of the AgNWs network without degradation of the temperature-resistant PVA coating and decrease in the TCC transparency. Simulations have shown that, although the sample temperature reaches high values, the ultra-high heating and cooling rates, together with local annealing, enable the delicate thermal processing. The developed coatings and irradiation strategies are used to prepare and enhance the performance of AgNW-based transparent heaters. A single irradiation pulse increases the operating temperature of the transparent heater from 92 to 160 °C at a technologically relevant voltage of 12 V. The proposed technique shows a great promise in super-fast, low-temperature annealing of devices with temperature-sensitive components.

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An accelerator facility for WDM, HEDP, and HIF investigations in Nazarbayev University

Cited by 6 publications

References 5 publications

Improving Photoelectrochemical Activity of Magnetron-Sputtered Double-Layer Tungsten Trioxide Photoanodes by Irradiation with Intense Pulsed Ion Beams

Improving Photoelectrochemical Activity of Magnetron-Sputtered Double-Layer Tungsten Trioxide Photoanodes by Irradiation with Intense Pulsed Ion Beams

Electrical conductivity enhancement of transparent silver nanowire films on temperature-sensitive flexible substrates using intense pulsed ion beam

Modification of Silver Nanowire Coatings with Intense Pulsed Ion Beam for Transparent Heaters

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