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Black Scintillators: Exploring Sm2+ as a near-infrared emitting activator for gamma-ray spectroscopy

van Aarle, C. (author)

doctoral thesis 2024

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Single-crystal vs polycrystalline boron-doped diamond anodes: Comparing degradation efficiencies of carbamazepine in electrochemical water treatment

Feijoo, Sara (author), Baluchová, S. (author), Kamali, Mohammadreza (author), Buijnsters, J.G. (author), Dewil, Raf (author)

The ongoing challenge of water pollution by contaminants of emerging concern calls for more effective wastewater treatment to prevent harmful side effects to the environment and human health. To this end, this study explored for the first time the implementation of single-crystal boron-doped diamond (BDD) anodes in electrochemical wastewater...

journal article 2024

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The temperature dependent optical and scintillation characterisation of Bridgman grown CsPbX₃ (X = Br, Cl) single crystals

van Blaaderen, J.J. (author), Biner, Daniel (author), Krämer, Karl W. (author), Dorenbos, P. (author)

Lead halide perovskites are reportedly a very promising group of materials for scintillation due to their fast sub-nanosecond exciton luminescence, small band-gaps, and high theoretical light yield. Unfortunately, they only show emission at cryogenic temperatures. In this work single crystals of CsPbBr₃ and CsPbCl₃ are...

journal article 2024

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Light yield and thermal quenching of Ce³⁺ and Pr³⁺ co-doped LaBr₃:Sm²⁺ near-infrared scintillators

van Aarle, C. (author), Roturier, Nils (author), Biner, Daniel A. (author), Krämer, Karl W. (author), Dorenbos, P. (author)

LaBr₃:Ce³⁺ is a compound with excellent scintillation properties, but its ultraviolet emission does not match well with the detection efficiency curves of silicon based photodetectors. In this work, Sm²⁺ is studied as an activator for LaBr₃ as its near-infrared emission can be detected with close to...

journal article 2023

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Heavily boron-doped diamond grown on scalable heteroepitaxial quasi-substrates: A promising single crystal material for electrochemical sensing applications

Liu, Z. (author), Baluchová, S. (author), Frota Sartori, A. (author), Li, Z. (author), Gonzalez Garcia, Y. (author), Schreck, Matthias (author), Buijnsters, J.G. (author)

In this work, three distinct heteroepitaxial single-crystal boron-doped diamond (SC-BDD) electrodes were fabricated and subjected to detailed surface analysis and electrochemical characterization. Specifically, the heteroepitaxy approach allowed to synthesize large-area (1 cm²) and heavily-doped (100)-oriented SC-BDD electrodes....

journal article 2023

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Enhancing luminous flux and color rendering of laser-excited YAG:Ce³⁺ single crystal phosphor plate via surface roughening and low-temperature sintering a CaAlSiN₃:Eu²⁺ phosphor-in-borate glass

Wei Chen, Chen (author), Cao, Dunhua (author), Dong, Yongjun (author), Xiong, Jingkang (author), Trofimov, Yuri (author), Lishik, Sergey (author), Zhang, Kouchi (author), Fan, J. (author)

Y₃Al₅O₁₂:Ce³⁺ (YAG:Ce³⁺) single crystal phosphor (SCP) exhibits high internal quantum efficiency (IQE) and excellent thermal conductivity and stability. Such properties are promising in high-power laser-excited white lighting applications. However, YAG:Ce³⁺ SCP usually shows...

journal article 2022

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Characterisation of Sm²⁺-doped CsYbBr₃, CsYbI₃ and YbCl₂ for near-infrared scintillator application

van Aarle, C. (author), Krämer, Karl W. (author), Dorenbos, P. (author)

Fast energy transfer from Yb²⁺ to Sm²⁺ is a requirement when using Yb²⁺ as a sensitiser for Sm²⁺ emission for near-infrared scintillator applications. This cannot be achieved through dipole-dipole interactions due to the spin-forbidden nature of the involved Yb²⁺ transition, making the...

journal article 2022

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Effect of Hot Isostatic Pressing on the Microstructure of Directionally Solidified Nickel Alloy After SLM

Borisov, Evgenii (author), Gracheva, Anna (author), Popovich, V. (author), Popovich, Anatoly (author)

The paper investigates the effect of hot isostatic pressing of single-crystal nickel-based alloy manufactured by selective laser melting (SLM) with a high-temperature substrate preheating. A study of the structure and phase composition of the material before and after treatment has been carried out. It was found that as a result of such...

conference paper 2022

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(Fe,Co)₂(P,Si) rare-earth free permanent magnets: From macroscopic single crystals to submicron-sized particles

Yibole, H. (author), Lingling-Bao, B. (author), Xu, J. (author), Alata, H. (author), Tegus, O. (author), Hanggai, W. (author), van Dijk, N.H. (author), Brück, E.H. (author), Guillou, F. (author)

While rare-earth magnets exhibit unchallenged hard-magnetic properties, looking for alternatives based on inexpensive elements of non-critical supply remains of utmost interest. Here, we demonstrate that (Fe,Co)₂(P,Si) single crystals combine a large magnetocrystalline anisotropy (K₁ ≈ 0.9 MJ m⁻³ at 300 K),...

journal article 2021

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Heat treatment effect on the structure formation of directionally solidified nickel alloy after SLM

Borisov, Evgenii (author), Starikov, Kirill (author), Kim, Artem (author), Popovich, V. (author), Popovich, Anatoly (author)

The aim of this study was to determine the influence of heat treatment on the microstructure of single-crystal nickel-based alloy manufactured by selective laser melting with a high-temperature substrate preheating. The change of gamma/gamma prime -phases ratio was established as a result of various heat treatment modes.

conference paper 2021

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Role of sp² carbon in non-enzymatic electrochemical sensing of glucose using boron-doped diamond electrodes

Liu, Z. (author), Frota Sartori, A. (author), Buijnsters, J.G. (author)

Boron-doped diamond (BDD) is of increasing interest for applications in electrochemical sensing. It is well known that the sp² carbon content in BDD influences its electrochemical properties as electrode material. In this work, evidence is provided that the surface sp² carbon content plays a crucial role in the...

journal article 2021

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Single-crystal copper films on sapphire

Janssen, G.C.A.M. (author), van der Pers, N.M. (author), Hendrikx, R.W.A. (author), Bottger, A.J. (author), Kwakernaak, C. (author), Rieger, B. (author), Sluiter, M.H.F. (author)

Single-crystal copper films on sapphire have recently been reported upon in relation to graphene growth on these films. In the present paper the kinetics of the formation of single crystal copper films is investigated. We demonstrate the importance of heating the sapphire substrate in 1000 hPa oxygen, followed by a fast cooling prior to...

journal article 2020

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Cracks formation in nickel-based single crystal alloy manufactured by selective laser melting

Borisov, Evgenii (author), Starikov, Kirill (author), Popovich, Anatoly (author), Popovich, V. (author)

The aim of this study was to determine the influence of selective laser melting (SLM) process parameters on the formation of cracks in nickel-based single crystal alloy. Several sets of laser scanning parameters, with varied laser power, scanning speed and hatch distance, thus resulting in different volumetric and linear energy densities,...

conference paper 2020

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Electronic mobility and crystal structures of 2,5-dimethylanilinium triiodide and tin-based organic-inorganic hybrid compounds

Kamminga, Machteld E. (author), Gelvez Rueda, M.C. (author), Maheswari, S. (author), van Droffelaar, I.S. (author), Baas, Jacob (author), Blake, Graeme R. (author), Grozema, F.C. (author), Palstra, Thomas T.M. (author)

We synthesize single crystals of a new 2,5-dimethylanilinium tin iodide organic-inorganic hybrid compound and 2,5-dimethylanilinium triiodide. Single-crystal X-ray diffraction reveals that the hybrid grows as a unique rhombohedral structure consisting of one-dimensional chains of SnI₆-octahedra that share corners and edges to build...

journal article 2019

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Single-crystal Pt-decorated WO₃ ultrathin films: a platform for sub-ppm hydrogen sensing at room temperature

Mattoni, G. (author), de Jong, B.W.A. (author), Manca, N. (author), Tomellini, M. (author), Caviglia, A. (author)

Hydrogen-related technologies are rapidly developing, driven by the necessity of efficient and high-density energy storage. This poses new challenges to the detection of dangerous gases, in particular the realization of cheap, sensitive, and fast hydrogen sensors. Several materials are being studied for this application, but most present...

journal article 2018

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Light control of the nanoscale phase separation in heteroepitaxial nickelates

Mattoni, G. (author), Manca, N. (author), Hadjimichael, M. (author), Zubko, P. (author), van der Torren, J.H. (author), Yin, C. (author), Catalano, S. (author), Gibert, M. (author), Maccherozzi, F. (author), Liu, Y. (author), Dhesi, S.S. (author), Caviglia, A. (author)

Strongly correlated materials show unique solid-state phase transitions with rich nanoscale phenomenology that can be controlled by external stimuli. Particularly interesting is the case of light–matter interaction in the proximity of the metal–insulator transition of heteroepitaxial nickelates. In this work, we use near-infrared laser light in...

journal article 2018

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Effect of Li on the deformation mechanisms of nanocrystalline hexagonal close packed magnesium

Karewar, S.V. (author), Gupta, N. (author), Groh, S. (author), Martinez, E. (author), Caro, A. (author), Srinivasan, S.G. (author)

Addition of solutes such as lithium enhances ductility of hexagonal-close-packed (hcp) magnesium (Mg). However, the atomistic underpinning of Li addition on individual deformation mechanisms remain unclear and is the focus of the present work. We compared the deformation mechanisms in nanocrystalline (NC) and single crystal simulation systems...

journal article 2017

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The Improvement of Oxidation Resistance of a Re-Based Diffusion Barrier/Ni–Al Coating on the Single-Crystal Ni-Based TMS-82+ Superalloy

Wu, Y. (author), Wang, Y.M. (author), Song, G.M. (author), Li, X.W. (author)

Oxidation behavior of a Re-based diffusion barrier/Ni–Al coated single-crystal (SC) Ni-based TMS-82+ superalloy was studied to compare with those of the base and Ni–Al coated superalloys under cyclic air at 1150 °C for 200 h. The base superalloy showed a negative mass gain due to extensive oxide spallation, and the Ni–Al coated superalloy...

journal article 2011

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Improvement of the Oxidation Resistance of the Single-Crystal Ni-Based TMS-82+ Superalloy by Ni–Al Coatings with/without the Diffusion Barrier

Wu, Y. (author), Li, X.W. (author), Song, G.M. (author), Wang, Y.M. (author), Narita, T. (author)

Oxidation behavior of the uncoated base, Ni–Al coated and Re–Cr-Ni plus Ni–Al coated single-crystal (SC) Ni-based TMS-82+ superalloy is studied under cyclic air at 900ºC for 200 h to assess the oxidation resistance. Regardless of the coating processing, Ni–Al coating is effective in improving the oxidation resistance due to the formation of a...

journal article 2010

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Organic single-crystal field-effect transistors

De Boer, R.W.I. (author)

Organic electronics constitute an innovative field, with interesting applications complementary to the silicon semiconductor technology. From a scientific perspective, there is large interest in the fundamental understanding of electrical transport in organic semiconductors. However, a well-developed microscopic description is still lacking, due...

doctoral thesis 2005