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BiFeO₃ synthesis by conventional solid-state reaction

Tuluk, A. (author), Mahon, T.R. (author), van der Zwaag, S. (author), Groen, W.A. (author)

BiFeO₃ is a multiferroic material with the perovskite structure which is promising for use in sensors and transducers. Single phase production of BiFeO₃ remains a challenge, however. In this study, the optimal calcination temperature to obtain close to single phase powder was determined to be 750°C. The sintering...

conference paper 2019

document

Towards Highly Efficient Bias-Free Solar Water Splitting

Abdi, F.F. (author)

Solar water splitting has attracted significant attention due to its potential of converting solar to chemical energy. It uses semiconductor to convert sunlight into electron-hole pairs, which then split water into hydrogen and oxygen. The hydrogen can be used as a renewable fuel, or it can serve as a feedstock material to form hydrocarbons....

doctoral thesis 2013

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Enhancing Piezo- and Electrical Properties of Bismuth Ferrite based Ceramics: Chemical and Physical Approaches

Tuluk, A. (author)

The main objective of the research as described in this thesis was to enhance the piezo- and electrical properties of bismuth ferrite-based (BiFeO3 or BFO) piezoceramics at room and elevated temperatures, using both chemical and physical approaches.

doctoral thesis 2023

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Evidence of the Griffiths phase in multiferroic BiMnO3 and BiFe0.5Mn0.5O3 films

Prokhorov, V.G. (author), Kaminsky, G.G. (author), Kim, J.M. (author), Yoo, Y.J. (author), Lee, Y.P. (author), Svetchnikov, V.L. (author), Levchenko, G.G. (author), Nikolaenko, Y.M. (author), Khokhlov, V.A. (author)

Microstructure and magnetic properties of BiMnO3 and BiFe0.5Mn0.5O3 films, prepared by rf magnetron sputtering on LaAlO3 (001) single-crystalline substrate, are investigated. The selected-area electron diffraction analysis allows us to identify the crystal structure of the BiMnO3 film as orthorhombic, while the BiFe0.5Mn0.5O3 film has a...

journal article 2012

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NOx sensing characteristics of Bi2Sr2CaCu2O8+x and Bi2Sr2CuO6+x films

Huang, X.J. (author), Schoonman, J. (author), Boukamp, B.A. (author), Bouwmeester, H.J.M. (author), Van der Put, P.J. (author), Royal, N.C.S.T. (author), International, S. (author)

journal article 1994

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Investigation of Terahertz Emission from BiVO4 /Au Thin Film Interface

Kumar, N. (author), Abdi, F.F. (author), Trzesniewski, B. (author), Smith, W.A. (author), Planken, P.C.M. (author), Adam, A.J.L. (author)

We demonstrate emission of terahertz pulses from a BiVO4/Au thin film interface, illuminated with femtosecond laser pulses. Based on the experimental observations, we propose that the most likely cause of the THz emission is the Photo-Dember effect caused by the standing wave intensity distribution formed at the BiVO4/Au interfaces.

journal article 2015

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Structure of liquid caesium–bismuth alloys studied by neutron diffraction

Van der Aart, S.A. (author), Verhoeven, V.W.J. (author), Verkerk, P. (author), Van der Lugt, W. (author)

Neutron diffraction experiments were carried out for two liquid alloys with compositions CsBi and Cs3Bi2. The results indicate that probably polyanions with an average number of about two Bi atoms per cluster are formed. This result contrasts with that for liquid Cs–Sb, which contains larger chains as polyanions.

journal article 2000

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Evidence of non-Dzyaloshinskii–Moriya ferromagnetism in epitaxial BiFeO3 films

Prokhorov, V.G. (author), Kaminsky, G.G. (author), Kim, J.M. (author), Eom, T.W. (author), Park, J.S. (author), Lee, Y.P. (author), Svetchnikov, V.L. (author), Levtchenko, G.G. (author), Nikolaenko, Y.M. (author), Khokhlov, V.A. (author)

X-ray diffraction analysis and high-resolution electron microscopy of BiFeO3 films prepared by dc magnetron sputtering on single-crystal LaAlO3 (001) substrates reveal that the films have a highly c-oriented orthorhombic crystalline structure. The magnetic properties of the BiFeO3 films are typical of ensembles of interacting superparamagnetic...

journal article 2011

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Stimulated terahertz emission from group-V donors in silicon under intracenter photoexcitation

Shastin, V.N. (author), Zhukavin, R.K. (author), Orlova, E.E. (author), Pavlov, S.G. (author), Rümmeli, M.H. (author), Hübers, H.W. (author), Hovenier, J.N. (author), Klaassen, T.O. (author), Riemann, H. (author), Bradley, I.V. (author), Van der Meer, A.F.G. (author)

Frequency-tunable radiation from the free electron laser FELIX was used to excite neutral phosphorus and bismuth donors embedded in bulk monocrystalline silicon. Lasing at terahertz frequencies has been observed at liquid helium temperature while resonant pumping of odd parity impurity states. The threshold was about two orders of magnitude...

journal article 2002

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Terahertz gain on shallow donor transitions in silicon

Zhukavin, R.K. (author), Shastin, V.N. (author), Pavlov, S.G. (author), Hübers, H.W. (author), Hovenier, J.N. (author), Klaassen, T.O. (author), Van der Meer, A.F.G. (author)

Small signal gain measurements of optically excited terahertz silicon lasers are reported. Two types of lasers, Si:P and Si:Bi, were investigated. They were optically excited with radiation from a free electron laser or a CO2 laser. The experiments were performed with an oscillator-amplifier scheme where one sample serves as a laser while the...

journal article 2007

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High-Tc superconductors as NO sensor materials: A general investigation

Huang, X.J. (author), Schoonman, J. (author), Chen, L.Q. (author)

journal article 1994

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High Tc superconductors as NOx and COx sensor materials

Huang, X.J. (author), Chen, L.Q. (author), Schoonman, J. (author)

journal article 1992

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A gas sensor with porous films of Bi2Sr2CaCu2O8+x: An analysis of the response

Huang, X.J. (author), Schoonman, J. (author), Chen, L.Q. (author)

journal article 1994

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Controlling the Oxygen Defects Concentration in a Pure BiFeO3 Bulk Ceramic

Tuluk, A. (author), Brouwer, J.C. (author), van der Zwaag, S. (author)

BiFeO ₃ is a multiferroic material with a perovskite structure that has a lot of potential for use in sensors and transducers. However, obtaining pure single-phase BiFeO ₃ ceramic with a low electrical conductivity via solid-state reactions remains a problem that limits its application. In this work, the suppression of...

journal article 2022

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Estimating the true piezoelectric properties of BiFeO₃ from measurements on BiFeO₃-PVDF terpolymer composites

Tuluk, A. (author), Mahon, T.R. (author), van der Zwaag, S. (author), Groen, W.A. (author)

BiFeO₃ is an interesting multiferroic material with potential use in sensors and transducers. However, the high coercive field and low dielectric strength of this material make the poling process extremely difficult. Poling becomes a lot easier if the ceramic particles are incorporated in a non-conductive polymer with comparable...

journal article 2021

document

Blasse's Pandora's box

Dorenbos, P. (author)

Upon his retirement from science Blasse wrote a paper (Blasse, J. Lumin. 72-74 (1997) 129) addressing unsolved problems in explaining luminescence phenomena of classical phosphors. He used the metaphor of Pandora's box. A box full of disaster that should remain closed. Yet, Blasse did open that box and therewith spread the unsolved problems...

journal article 2021

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Exploring the BiFeO3-PbTiO3-SrTiO3 Ternary System to Obtain Good Piezoelectrical Properties at Low and High Temperatures

Tuluk, A. (author), van der Zwaag, S. (author)

In this work, we investigated the piezoelectric properties of BiFeO3-rich (1 − (y + x)) BiFeO3–y PbTiO3–x SrTiO3 (0.1 ≤ x ≤ 0.35; 0.1 ≤ y ≤ 0.3) bulk piezoceramics, as this system could potentially lead to the development of bulk piezoelectric ceramics that are suitable for high-temperature applications (>200 °C). Samples with various levels...

journal article 2023

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Unraveling electron liberation from Bi²⁺ for designing Bi³⁺-based afterglow phosphor for anti-counterfeiting and flexible X-ray imaging

Lyu, T. (author), Dorenbos, P. (author), Li, Canhua (author), Li, Silei (author), Xu, Jian (author), Wei, Zhanhua (author)

It is challenging to rational design persistent luminescence and storage phosphors with high storage capacity of electrons and holes after X-ray charging. Such phosphors have potential applications in anti-counterfeiting and X-ray imaging. Here we have combined vacuum referred binding energy diagram (VRBE) construction, photoluminescence...

journal article 2022

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Wide Range X-Ray to Infrared Photon Detection and Energy Storage in LiTaO₃:Bi³⁺,Dy³⁺ Perovskite

Lyu, Tianshuai (author), Dorenbos, P. (author), Li, Canhua (author), Wei, Zhanhua (author)

It is challenging to obtain a material that can detect photons ranging from X-rays to infrared light. Such materials have promising use to develop advanced applications like in information storage, anticounterfeiting, or X-ray imaging. This article reports on such a material; LiTaO₃:xBi³⁺,yDy³⁺ perovskite...

journal article 2022

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Towards information storage by designing both electron and hole detrapping processes in bismuth and lanthanide-doped LiRE(Si,Ge)O₄ (RE = Y, Lu) with high charge carrier storage capacity

Lyu, T. (author), Dorenbos, P. (author)

Guided by vacuum referred binding energy (VRBE) diagrams, both the trapping and detrapping processes of electrons and holes are explored in the bismuth and lanthanide-doped LiRE(Si,Ge)O₄ (RE = Y, Lu) family of compounds. The Tm³⁺ electron trap has been combined with the deep hole traps of Ln³⁺ (Ln = Ce, Tb, or...

journal article 2020