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Recent submissions

2023: Recent submissions

Now showing items 101-120 of 143

The Water-Soluble Zinc Phthalocyanine Substituted with Sulfur-Containing Groups

GUTU, Iacob; SUMAN, Victor; BARBA, Alic; POTLOG, Tamara (Springer Nature Switzerland, 2023)

In this paper we describe [phthalocyaninato]zinc octakis (methylene isothiuronium) chloride and [phthalocyannato]zinc octamethanethiol having as the starting substance octakis(cloromethyl) phthalocyanine zinc obtained by ...
Technological Features of Creating Hole Structures on the Base of MoS2 and the Electrochemical Behavior of MXene/Holey MoS2 Hybrids in Oxygen Reduction Reactions

GURBUZ, Havva Nur; IPEKCI, Hasan H.; GOREMICHIN, Vladimir; SIMINEL, Nikita; KULYUK, Leonid; UZUNOGLU, Aytekin (Springer Nature Switzerland, 2023)

High-performance noble metal-free two-dimensional (2D) electrochemical catalysts have gained great importance to replace the Pt-based catalysts in oxygen reduction reactions (ORR) to reduce not only the cost of the fuel ...
Aero-Materials Based on Wide-Band-Gap Semiconductor Compounds for Multifunctional Applications: A Review

TIGINYANU, Ion; BRANISTE, Tudor (Springer Nature Switzerland, 2023)

The aim of this paper is to review the research efforts undertaken last years to develop novel hybrid three-dimensional micro-nano-architectures based on wide-band-gap binary compounds for multifunctional applications. ...
Photodetector Based on β-Ga2O3 Nanowires on GaSxSe1-X Solid Solution Substrate

SPRINCEAN, Veaceslav; CARAMAN, Mihail; QIU, Haoyi; TJARDTS, Tim; SEREACOV, Alexandr; AKTAS, Cenk; ADELUNG, Rainer; LUPAN, Oleg (Springer Nature Switzerland, 2023)

The detection of radiation in the ultraviolet C (UVC) region (100–280 nm) is of great importance for numerous technical applications, such as fire detection in security devices, tracking astronomical missile trajectories, ...
Fine Dispersion and Intensification of Heat Transfer at Boiling in Electric Field on the Modified Surfaces

CHERNICA, Ion; BOLOGA, Mircea (Springer Nature Switzerland, 2023)

The research tasks were formulated on the basis of scientific and applied aspects of engineering thermophysics and bioengineering. In the first part of the work the results of experimental study of heat transfer at boiling ...
Illumination-Dependent Photovoltaic Parameters of CdS/ZnTe Solar Cells

LUNGU, Ion; GHIMPU, Lidia; SUMAN, Victor; UNTILA, Dumitru; POTLOG, Tamara (Springer Nature Switzerland, 2023)

This paper focuses on the influence of the illumination of CdS/ZnTe solar cells with different ZnTe thin film thicknesses. The devices were analyzed through current-voltage measurements. The values of the open circuit ...
Synthesis Technology for CdSe/CdTe Heterojunctions and Characterization of Their Photoelectric Properties

GAGARA, Ludmila; LUNGU, Ion; GHIMPU, Lidia; POTLOG, Tamara (Springer Nature Switzerland, 2023)

This paper presents the results of studying the photoelectric properties of CdSe/CdTe heterojunctions synthesized by the hot-wall epitaxy method. The CdSe/CdTe heterojunctions were manufactured by consecutive growth of ...
ZnO Microtetrapods Covered by Au Nanodots as a Platform for the Preparation of Complex Micro-nano-structures

MONAICO, Eduard V.; REIMERS, Armin; CIOBANU, Vladimir; ZALAMAI, Victor V.; URSAKI, Veaceslav V.; ADELUNG, Rainer; TIGINYANU, Ion M. (Springer Nature Switzerland, 2023)

We propose to use hybrid networks of ZnO microtetrapods produced by flame transport synthesis and Au nanodots deposited by pulsed electroplating, for the preparation of more complex 3D micro-nano-structures via Au ...
Photoluminescence and Cathodoluminescence of Layered ZnIn2S4 and Zn2In2S5 Compounds Thermally Processed in Sulfur Vapor and Vacuum

ARAMA, Efim; PÎNTEA, Valentina; SHEMYAKOVA, Tatiana (Springer Nature Switzerland, 2023)

The luminescent properties of the layered compounds were investigated under the action of accelerated electrons – cathodoluminescence - and X-ray radiation. The experimental results of investigations conducted on the ...
Parametric Anomaly of the Phonon Spectrum of a Thin Free-Standing Membrane

COJOCARU, Sergiu (Springer Nature Switzerland, 2023)

We consider modification of the acoustic Rayleigh-Lamb phonon spectrum in a thin homogeneous membrane upon variation of parameters characterizing the medium. It is emphasized that single-valued parametric dependence of the ...
New Characteristics of Blue Self-pulsating InGaN Lasers

GRIGORIEV, Eugeniu; RUSU, Spiridon; TRONCIU, Vasile (Springer Nature Switzerland, 2023)

In this paper, we present results of numerical calculations on the influence of blue light laser parameters on self-pulsation regimes. The adopted Yamada model to InGaN laser is used for numerical calculations. We start ...
Ground and Excited States of Excitons in GaSe Single Crystals

CRISTEA, Ecaterina; STAMOV, Ivan; ZALAMAI, Victor (Springer Nature Switzerland, 2023)

In this work photoluminescence, reflection and absorption spectra of GaSe single crystals were studied in a wide temperature range (10 – 300 K). The presence of series of excitonic levels in the region E > Eg was shown. ...
Optical Properties and Photoinduced Anisotropy of PEPC-co-SY3 Nanocomposite

LOŞMANSCHII, Constantin; ACHIMOVA, Elena; ABASKIN, Vladimir; MESALCHIN, Alexei; PRISACAR, Alexandr; BOTNARI, Vladislav (Springer Nature Switzerland, 2023)

In the present work, the optical properties of the PEPC-co-SY3 nanocomposite doped with gold nanoparticles are brought to light. The samples were prepared with 3 different concentrations of Au as well as a control sample ...
Micro-Raman Analysis of Some As-S-S-Te Nanostructured Semiconductors

IASENIUC, Oxana; IOVU, Mihail (Springer Nature Switzerland, 2023)

In the present work some nanostructured chalcogenides of the As-S-Sb-Te system have been investigated by non-contact Micro-Raman spectroscopy which is a powerful technique for obtaining information on the local structure ...
Advanced Nanotechnology-Based Approaches to Waste Water Purification from Organic Pollutants

DATSKO, Tatiana; ZELENTSOV, Veacheslav; DVORNIKOV, Dmitri (Springer Nature Switzerland, 2023)

One of the organic substance that requires wastewater treatment before being discharged into the aquatic system is phenol and its derivatives, which are known to be endocrine disruptors. Heterogeneous photocatalysis using ...
Preliminary Study on Silver Nanoparticle Synthesis Through Chemical and Biological Methods

PLESNICUTE, Ramona Mirela; VACARIU, Anamaria; MOTRESCU, Iuliana; CREANGA, Dorina (Springer Nature Switzerland, 2023)

This research was focused on the synthesis and characterization of silver nanoparticles, known for their various utilizations in the people daily life. Aiming the promotion of eco-friendly nanoproducts, we present a ...
Optical and Photoelectric Properties of Cadmium Diarsenide and Surface-Barrier Structures Based on It

STAMOV, Ivan; TKACHENKO, Dmitry (Springer Nature Switzerland, 2023)

The optical properties of CdAs2 single crystals are studied in polarized light. The features of the fundamental absorption edge and the splitting of bands in the field of the crystal lattice are studied. Birefringence ...
Trends in Evolution of the Energy Band Structure of Chalcopyrite CuBIIIXVI2 Compounds with Variation of the B and X Compositions

MAŞNIC, Alisa; ZALAMAI, Victor; URSAKI, Veaceslav (Springer Nature Switzerland, 2023)

Bulk and nanostructured AIBIIIXVI2 chalcopyrite materials, including quantum dots on their basis, are widely used in the development of optical filters, solar cells, optoelectronic devices and photocatalysis. Physical ...
General Nature of Serration Effect in Crystals and Other Materials Under Indentation

GRABCO, Daria; PYRTSAC, Constantin; SHIKIMAKA, Olga (Springer Nature Switzerland, 2023)

The nature of the manifestation of the “serration effect” (SE) during nano-microindentation of materials of various types was studied in this work: ionic and covalent crystals (LiF, MgO, Si), coated systems (CSs) of the ...
Organic Nanostructured Crystals for Thermoelectric Cooling in Medical Applications

SANDULEAC, Ionel; ANDRONIC, Silvia; BALMUS, Ion (Springer Nature Switzerland, 2023)

In this study we performed theoretical calculations and numerical modelling of a thermoelectric p-n pair composed of organic nanostructured crystals. Specifically, we focus on two highly promising materials: TTT2I3 and ...

Now showing items 101-120 of 143

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