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Mrs. Felicia Gheorghiu

Dr.

Scientific Researcher III - UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI

Researcher | Teaching staff | Technician | Scientific reviewer

Dr. Felicia GHEORGHIU is a researcher with results in the study of multifunctional ceramics with applications in electronics and in particular, in the field of multiferroics with magnetoelectric coupling. She obtained the PhD degree in Physics in 2012 and has achieved experience in the preparation, micro/nanoscale characterization, physico-chemical properties and electrical/magnetic characterization of multiferroic materials. She is co-author of 32 scientific papers (20 as first / corresponding author): 28 ISI papers with an Individual ISI score=10.81 and 4 articles published in non-ISI national journals; has more than 528 citations in ISI journals without self-citation (according to WoS site); Hirsh- factor h=14 (according to WoS site) ; 1 national patents with ISI index; over 67 presentations (orals and posters) at international conferences; Guest Editor for special Issue for Materials journal (IF=3.4); Reviewer in more than 7 ISI international journals.

Web of Science ResearcherID: C-3247-2012

Curriculum Vitae (12/07/2023)

Expertise & keywords

Nanostructured double perovskite for solar energy conversion devices Call name: P 1 - SP 1.1 - Proiecte de cercetare pentru stimularea tinerelor echipe independente - TE-2021
PN-III-P1-1.1-TE-2021-0265 2022 - 2024

Role in this project:

Coordinating institution: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI

Project partners: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO)

Affiliation:

Project website: https://cernesim.uaic.ro/index.php/language/ro/l3-ro/l3/l3c/l3c-contracte-de-cercetare/contract-nanosec/

Abstract:

The research interest in methods and materials for clean energy generation and storage in a sustainable manner is driven by the rapidly growing global energy demand and the negative effect of greenhouse gasses. Converting solar energy in electricity and fuel is the main focus of renewable energy research. The world’s photovoltaic capacity of the existing technologies is still limited. Due to the intermittent nature of sunlight, a separate energy storage mechanism which is effective and environmentally harmless is required for solar energy to fully replace fossil energy. This makes photoelectrochemical cell an interesting alternative. The present proposal addresses these concerns for renewable energy production and storage by designing new nanostructured systems that are based on double oxide ferroelectric materials, for which recently reported experimental results and theoretical studies showed promising characteristics. High quality absorbing materials with structural, optical and ferroelectric properties that efficiently convert the solar energy into electricity will be obtained using new experimental configurations based on pulsed laser deposition and high power impulse magnetron sputtering. Also, different cell architectures with multi-layered configurations are considered. The achievement of this project general objective will bring significant contribution to the sustainability and future commercialization of photonic devices as sources of renewable energy.

Engineering of lead-free porous ceramic materials for piezo-, pyroelectric sensors with energy harvesting applications Call name: P 4 - Proiecte de Cercetare Exploratorie, 2020
PN-III-P4-ID-PCE-2020-1988 2021 - 2023

Role in this project:

Coordinating institution: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI

Project partners: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO)

Affiliation:

Project website: https://www.uaic.ro/enginpor/

Abstract:

The aim of the present project is to design, produce and test piezo- and pyroelectric sensors based on optimised Pb-free porous ceramics with controlled microstructures, in complex experimental set-ups for energy harvesting applications for a new generation of self-powered sensors devices. The project will demonstrate a new concept based on the use of controlled porosity in ferroelectric ceramics as a tool for enhancing the figures of merit (FOMs), by decreasing permittivity values while preserving high piezo- and pyroelectric constants. The main objective is to explore by combined theoretical and numerical models different types of porous microstructures providing the abovementioned characteristics. Further, selected ceramic structures will be produced by using various types of sacrificial pore formers or by incomplete sintering and will be analysed from the point of view of their piezo- and pyroelectric sensing performances. The optimum porous materials will be tested for thermal and mechanical energy detection and conversion, in order to be employed in energy harvester devices. The project will use a multi-disciplinary approach, based on modelling, oxide powder synthesis and porous ceramics preparation, micro/nanostructural characterisation, complex electrical properties analyses and design & realisation of experimental set-ups for energy harvesting devices.

Magnetoelectric composites with emergent properties for wireless and sensing applications Call name: Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-1119 2014 - 2017

Role in this project:

Coordinating institution: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI

Project partners: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO); GRADIENT S.R.L. (RO); INSTITUTUL NATIONAL DE CERCETARE-DEZVOLTARE PENTRU FIZICA TEHNICA-IFT RA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU TEHNOLOGII IZOTOPICE SI MOLECULARE I N C D T I M (RO)

Affiliation: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO)

Project website: http://stoner.phys.uaic.ro/projects/national-projects/213-mecomap-pnii-pt-ro.html

Abstract:

The aim of the present multidisciplinary project is to design by modeling&simulation, produce by innovative synthesis methods and various sintering strategies, to investigate the physico-chemical properties at various length scales of a few types of magnetoelectric composites with emergent properties in order to integrate them at industrial scale in a few types of new applications. Two types of devices based on magnetoelectric composites will be produced: (i) miniaturised magnetoelectric tunable reconfigurable antennas based on particulate ceramic composites; (ii) new types of sensors / transducers / actuators / harvesters based on layered magnetoelectric composites. The project will contribute to increase the consortium capacity to approach top research subjects in the field of smart multifunctional materials with high applicative potential. In terms of material science aspects, an important contribution will be given by a complex physico-chemical experimental – modeling approach for understanding the relationship between composition, micro/nanostructural parameters and functional properties of the magnetoelectric composites with different degrees of phase connectivity. The composition, phase interconnectivity and microstructures will be optimised and the best composite structures will be selected for the proposed applications. By considering the dielectric, ferro/piezoelectric and magnetoelectric properties of the produced composites, new magnetoelectric devices will be designed, realised, tested and optimised and the best solutions in terms of both technical parameters and cost efficiency will be implemented as prototypes by the industrial partner. The new devices are expected to contribute to the increase of the company performances by extending its production capacities, by extending the number of high specialised employees and the number of its beneficiaries. The overall scientific goal is to improve the knowledge in the field of multifunctional magnetoelectric composite structures at different levels (macroscopic, mesoscopic and at nanoscale) in order to generate properties beyond the present ones and to integrate them into new magnetoelectric devices with superior characteristics and low cost.

Effect of interfaces on charge transport in ferroic/multiferroic heterostructures Call name: Complex Exploratory Research Projects - PCCE-2011 call
PN-II-ID-PCCE-2011-2-0006 2012 - 2016

Role in this project:

Coordinating institution: National Institute of Materials Physics

Project partners: National Institute of Materials Physics (RO); National Institute of Materials Physics (RO); National Institute of Materials Physics (RO); National Institute of Materials Physics (RO); National Institute of Materials Physics (RO); Alexandru Ioan Cuza University (RO)

Affiliation: Alexandru Ioan Cuza University (RO)

Project website: http://www.infim.ro/projects/effect-interfaces-charge-transport-ferroelectricmultiferroic-heterostructures

Abstract:

The main objective of the project is to perform a detailed study of interfaces and their effect on the charge transport properties in a number of well defined artificial multiferroic structures. Charge transport is beneficial in some cases, for example in tunnel junctions, but can be detrimental in other cases, as for example devices based on magnetoelectric effect or in capacitor like structures. In all cases, at least the interfaces with the metallic electrodes are involved in charge transport, but other interfaces can be also involved if multilayer structures are used. The study will be performed on thin films and/or nanostructures, therefore a significant influence of interfaces on the electronic and ionic charge transport is expected. The start will be from simple capacitor-like structures, to elucidate the problem of electrode interfaces in the case of various ferroic oxides. Further on charge transport in relation with interfaces will be studied in mode complex, multilayer structures with possible applications in tunel junctions, diodes or field effect devices.

The project involves 6 research teams from 2 host institutions, one of which is the National Institute of Materials Physics from Bucharest-Magurele, and the other one is the Alexandru Ioan Cuza University (UAIC) from Iassy. The composition of the teams is a mixes experienced researchers with excellent track records regarding preparation, characterization and modelling of advanced multifunctional materials including oxides, and young scientists at the beginning of their carriers. Some 12 PhD thesis are expected to start during the project. The project is expected to have a major impact not only at the basic science level, reflected by publications in high ranking journals, but also at the level of applied research, as for example manipulation of charge transport through designing specific interfaces or developement of new oxide architectures for ferroelectric field effect controlled of spin currents.

Material design, preparation, properties and modeling of multifunctional oxides structures for microelectronics and new energy storage applications Call name: Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0745 2011 - 2016

Role in this project:

Coordinating institution: Universitatea Alexandru Ioan Cuza Iasi

Project partners: Universitatea Alexandru Ioan Cuza Iasi (RO)

Affiliation: Universitatea Alexandru Ioan Cuza Iasi (RO)

Project website: http://stoner.phys.uaic.ro/projects/multifox.html

Abstract:

The project proposes to design, produce and investigate three types of multifunctional oxides for microelectronics and energy storage applications: (i) ferroelectric-based tunable ceramics, for which the tunability requirements are accomplished by tuning grain size to nanoscale or by composition and ferroelectric-relaxor crossover; (ii) single phase Bi-based multiferroics and ferroelectric-magnetic compounds derived from the ternary system BaO-Fe2O3-TiO2; (iii) oxide ceramics for supercapacitors and energy storage, formed by antiferro-ferroelectric combinations in La-doped PbZr,TiO3 or in ferroelectric-based composites with antiferroelectrics or carbon nanotubes. The project will contribute to the basic chemistry & nanophysics associated to the phase formation and nanoscale self-assembly of these materials, to understand the intrinsic/extrinsic contributions to the functional properties driven by size, boundary conditions, order and nanoscale defects and to describe and control their functional properties for specific applications requirements. The overall scientific goal is to improve the knowledge and understand the multifunctional oxide structures at different levels (macroscopic, mesoscopic and nanoscale) by a multidisciplinary approach involving innovative chemistry for preparation, nano/microscale characterization, detailed investigation of the functional properties and modeling tools.

INVESTIGATION OF THE VOLUM, INTERFACE AND PERCOLATION EFFECTS IN MULTIFUNCTIONAL COMPOSITE MATERIALS AND METAMATERIALS WITH CONTROLLED GEOMETRY (IMECOMP) Call name: Projects for Young Research Teams - TE-2010 call
PN-II-RU-TE-2010-0187 2010 - 2013

Role in this project:

Coordinating institution: UNIVERSITATEA ALEXANDRU IOAN CUZA DIN IASI

Project partners: UNIVERSITATEA ALEXANDRU IOAN CUZA DIN IASI (RO)

Affiliation: UNIVERSITATEA ALEXANDRU IOAN CUZA DIN IASI (RO)

Project website: http://stoner.phys.uaic.ro/projects/te_187.html

Abstract:

SCOPUL PROIECTULUI CONSTA IN INTELEGEREA FENOMENELOR FIZICO-CHIMICE FUNDAMENTALE ASOCIATE RELATIEI INTRE EFECTELE DE VOLUM SI CELE DE SUPRAFATA, TIPULUI DE INTERCONECTIVITATE SI GRADULUI DE PERCOLATIE IN COMPOZITE CERAMICE SI METAMATERIALE CU STRUCTURI CVASIPERIODICE, CU PROPRIETATI DIELECTRICE, FEROELECTRICE SI MAGNETOELECTRICE. NANOPULBERI PRIMARE (PEROVSKITI FEROELECTRICI SI FERITE SPINEL) SI STRUCTURI COMPOZITE MIEZ-INVELIS (FEROELECTRIC-FERITA) VOR FI PREPARATE PRIN METODE CHIMICE INOVATIVE IN-SITU. PULBERILE MONO- SAU DIFAZICE CU STRUCTURA MIEZ-INVELIS VOR FI CO-SINTERIZATE IN COMPOZITE CU DIVERSE COMPOZITII SI GRADE DE INTERCONECTIVITATE (0-0, 2-2, 2-3, 3-3). PROPRIETATILE FIZICO-CHIMICE LOCALE SI CARACTERISTICILE FUNCTIONALE ALE ESANTIONELOR VOR FI DETERMINATE PRIN TEHNICI COMPLEXE, IN SCOPUL INTELEGERII MECANISMELOR MICROSCOPICE SI AL PONDERII EFECTELOR DE VOLUM SI DE INTERFATA CA SI AL EFECTELOR DE PERCOLATIE ASUPRA PROPRIETATILOR FUNCTIONALE (DIELECTRICE, FEROELECTRICE, MAGNETICE, ETC.). VOR FI IN FINAL PRODUSE STRUCTURI COMPOZITE CVASIPERIODICE CU PROPRIETATI DE METAMATERIAL IN DOMENIUL MICROUNDELOR. O COMPONENTA IMPORTANTA O VA REPREZINTA IMPLEMENTAREA TEORIILOR DE CAMP EFECTIV PENTRU DESCRIEREA EFECTELOR OBSERVATE SI SIMULAREA COMPORTARII COMPOZITELOR IN CAMP ELECTRIC SI MAGNETIC.

INtegrated Quantum Circuits based on non-linear waveguide Arrays Call name: Joint Research Projects Romania-France - IDROFR-2014 Call (bilaterale)
PN-II-ID-JRP-RO-FR-2014-0013 2014 -

Role in this project: Key expert

Coordinating institution: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI

Project partners: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO); University of Nice - Sophia Antipolis, Laboratoire de Physique de la Matière Condensée, UMR7336, (FR)

Affiliation: UNIVERSITATEA "ALEXANDRU IOAN CUZA" IASI (RO)

Project website:

Abstract:

Quantum information science is a research field that has established a new benchmark in communication and processing of information, thanks to augmented security protocols in data exchange and increased processing capabilities, both available at the quantum level. Being enlightened by numerous proofs-of-principle, this field is now ready to move on to next generation applications, such as quantum simulation, quantum chemistry, quantum cryptosystems, and quantum sensing. In this perspective, where scalability will actually rely on (re)-configurable and reliable quantum devices, integrated photonic circuits have a strong potential for implementing quantum information processing in optical systems. Integrated quantum photonics has recently emerged and has already proven its suitability for high-performance photon pair source realizations and basic quantum state simulation and manipulation. In this framework, INQCA is geared towards realizing and optimizing dense photonic quantum circuits on lithium niobate, offering increased complexity and flexibility in terms of number of computational channels, input states, and non-classical properties. The main objective of the project therefore lies in the integration of photon pair sources and functionalized arrays of coupled waveguides for demonstrating on-chip photonic quantum state preparation as well as advanced quantum functions and simulations, with unprecedented scalability and stability features.

On one hand, lithium niobate stands as a one of the most suitable medium for exploiting second-order nonlinear processes. It enables to produce, with high brightness, entangled photons and indistinguishable heralded single photons via spontaneous parametric down-conversion in waveguides integrated on periodically poled lithium niobate. It also permits on-demand (re)-configuration of the waveguide propagation properties via the electro-optical effect, allowing for instance routing single photons in a quantum bus fashion. In addition, such a platform offers the possibility to design and integrate arrays with a large number of waveguides and engineered mutual coupling constants. On the other hand, waveguide array circuitries stand as compact, flexible, and multiport tools for quantum propagation control and quantum manipulation of light in a scalable and integrated manner. Induced photonic lattices are suitable hosts for implementing quantum processes, such as quantum logic gates and optical analogues of the quantum properties of condensed matter systems.

By merging, on a single chip, the potential of waveguide arrays and high-brightness photon pair sources, we aim at developing integrated quantum devices showing tailored properties operated in both discrete and continuous variable regimes. More specifically, the main targets concern i) on-chip observation of quantum coalescence effects and quantum routing, ii) quantum operator emulation via adequate configuration of the waveguide mutual coupling constants, and iii) on-chip investigation of multi-photon entanglement preparation using photonic lattices. Photonic waveguide arrays can also support extended waves, travelling and interfering along the lattice. A more prospective approach will address the possibility of exploiting such extended waves to manipulate multi-photon and high-dimension quantum states of light.

The INQCA program represents a unique opportunity to gather recognized French experts in quantum optics and information, namely the Laboratoire de Physique de la Matière Condensée (LPMC) and the Laboratoire de Photonique et de Nanostructures (LPN), together with the mandatory technological expertise from the newly established Romanian RAMTECH Centre, to enter this worldwide competition at its earlier stage. Thanks to this competitive consortium, this project promises significant progress in the field of future quantum technologies and new perspectives in quantum optics.

FILE DESCRIPTION	DOCUMENT
List of research grants as project coordinator or partner team leader
Significant R&D projects for enterprises, as project manager
R&D activities in enterprises
Peer-review activity for international programs/projects