Search Results - "Iordanescu, Sergiu"
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Nanomaterials and Devices for Harvesting Ambient Electromagnetic Waves
Published in Nanomaterials (Basel, Switzerland) (02-02-2023)“…This manuscript presents an overview of the implications of nanomaterials in harvesting ambient electromagnetic waves. We show that the most advanced…”
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Tunable Microwave Filters Using HfO2-Based Ferroelectrics
Published in Nanomaterials (Basel, Switzerland) (18-10-2020)“…In this paper, we present microwave filters that are based on 6-nm-thick ferroelectric thin films of hafnium oxide doped with zirconium (HfZrO), which are…”
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Unveiling pyroelectricity in ferroelectric planar capacitors with area-selective wet etched hafnium zirconium oxide: from ab initio and multiphysics simulations to experiments
Published in JPhys Energy (01-10-2024)“…Abstract In this work, a systematic approach aimed at investigating and validating a novel way of realizing pyroelectric harvesting is presented. Generating a…”
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Amplitude and Phase Tuning of Microwave Signals in Magnetically Biased Permalloy Structures
Published in IEEE access (2020)“…In this paper, a permalloy layer has been employed in the fabrication of a coupled line electromagnetic bandgap (EMBG) device to tune both amplitude and phase…”
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Aero-Ga2O3 Nanomaterial Electromagnetically Transparent from Microwaves to Terahertz for Internet of Things Applications
Published in Nanomaterials (Basel, Switzerland) (29-05-2020)“…In this paper, fabrication of a new material is reported, the so-called Aero-Ga2O3 or Aerogallox, which represents an ultra-porous and ultra-lightweight…”
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Preparation of BaTi4O9 from Oxalates
Published in Journal of the American Ceramic Society (01-02-2002)“…A barium titanate precursor with a barium:titanium ratio of 1:4 was prepared by controlled coprecipitation of mixed barium and titanium species with an…”
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HfO2‐Based Ferroelectrics Applications in Nanoelectronics
Published in Physica status solidi. PSS-RRL. Rapid research letters (01-05-2021)“…This article is dedicated to HfO2‐based ferroelectrics applications in nanoelectronics, especially to topics not well developed up to now, such as microwaves,…”
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Ferroelectrics at the nanoscale: materials and devices - a critical review
Published in Critical reviews in solid state and materials sciences (03-09-2023)“…Following the initial report on ferroelectricity in hafnia (HfO 2 ) more than a decade ago, the researchers' interest in this intriguing material system has…”
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Multifunctionalities of 2D MoS2 self-switching diode as memristor and photodetector
Published in Physica. E, Low-dimensional systems & nanostructures (01-02-2021)“…Self-switching diodes (SSD) were fabricated at the wafer level on a 2D few-layer MoS2 thin film (7 monolayers) grown on a 4-inch Al2O3/high-resistivity silicon…”
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Interaction of acoustic waves with spin waves using a GHz operating GaN/Si SAW device with a Ni/NiFeSi layer between its IDTs
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (26-09-2024)“…A two port surface acoustic wave (SAW) device was developed to be used for the control and excitation via spin waves (SW). The structure was manufactured using…”
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Tunable and Miniaturized Microwave Filters Using Carbon Nanotube-Based Variable Capacitors
Published in IEEE transactions on nanotechnology (2022)“…In this paper, we introduce a novel concept of tunable and miniaturized filtersthat embed, as voltage-controlled elements, state-of-the-art variable…”
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HfO 2 ‐Based Ferroelectrics Applications in Nanoelectronics
Published in Physica status solidi. PSS-RRL. Rapid research letters (01-05-2021)“…This article is dedicated to HfO 2 ‐based ferroelectrics applications in nanoelectronics, especially to topics not well developed up to now, such as…”
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Rapid Research Letters
Published in Physica status solidi. PSS-RRL. Rapid research letters (01-05-2021)“…This article is dedicated to HfO2‐based ferroelectrics applications in nanoelectronics, especially to topics not well developed up to now, such as microwaves,…”
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Different morphologies of super-balls obtained to form photonic crystals of cholesteryl benzoate liquid crystals
Published in Nanoscale advances (06-09-2024)“…The current study highlights the synthesis and characterization of some nanocomposite materials formed by polymer particles and liquid crystals. The liquid…”
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Harvesting Electromagnetic Energy in the -Band Using a Rectenna Formed by a Bow Tie Integrated With a 6-nm-Thick Au/HfO2/Pt Metal-Insulator-Metal Diode
Published in IEEE transactions on electron devices (01-07-2018)“…In this paper, the first demonstration of a bow-tie antenna integrated with a metal-insulator-metal (MIM) diode for electromagnetic energy harvesting in the…”
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Current rectification effects in 6 nm thick HfxZr1-xOy ferroelectrics/Si planar heterostructures
Published in Physica. E, Low-dimensional systems & nanostructures (01-10-2018)“…We show experimentally that current rectification occurs in planar ferroelectric Zr-doped HfO2/Si heterostructures having a thickness of 6 nm. When the applied…”
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Microwave coplanar band-stop filters based on electric-LC resonators: systematic numerical approach and experimental validation
Published in Journal of computational electronics (01-08-2023)“…In this paper, we propose a comparative method to analyze a complex microwave structure consisting of a silicon-based coplanar waveguide line and four…”
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Current rectification effects in 6 nm thick Hf Zr1-Oy ferroelectrics/Si planar heterostructures
Published in Physica. E, Low-dimensional systems & nanostructures (01-10-2018)Get full text
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