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Romania
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Ph.D. degree award:
Adrian
Radu
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Entrepreneurship
Reviewer section
Microbial-electrochemical cells based on nitrogen doped carbon materials for decontamination and energetic valorization of industrial wastewater
Call name:
Projects for Young Research Teams - RUTE -2014 call
PN-II-RU-TE-2014-4-0221
2015
-
2017
Role in this project:
Coordinating institution:
UNIVERSITATEA BUCURESTI
Project partners:
UNIVERSITATEA BUCURESTI (RO)
Affiliation:
UNIVERSITATEA BUCURESTI (RO)
Project website:
https://sites.google.com/a/psg.unibuc.ro/mec-nc/
Abstract:
Microbial-electrochemical cells (MEC) can convert readily available substrates from “renewable” sources into hydrogen or electrical energy and presents an opportunity to make a major contribution to EU energy requirements. MEC is an environmental friendly method for wastewater treatment with self-sustained electricity generation using microorganisms. Development of feasible MEC technology could be the answer to the worldwide concern for development of alternative water reuse technology.
Our approach for improvement of MECs refers to the electrode design which can be considered the greatest challenge in making MEC a cost-effective and scalable technology. Optimizations of the electrodes and of the interface electrode/biofilms and cathode materials will result in higher power output and enable real world application of MEC. The novelty of the proposal is related to the development of new nitrogen doped carbon materials, their application for MEC and the new research direction related to the exploitation of MEC technology for heavy metal removal.
Another important objective of the proposal is to create a new research team establishing an independent research programme to reach knowledge and expertise for MEC applications bringing together the combined knowledge in the disciplines of physics, chemistry and biology. The results could be of enormous global environmental benefit by ensuring the optimization of MECs using new advanced materials.
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Multilayered Photovoltaic Structures for Space Applications
Call name:
Joint Applied Research Projects - PCCA 2013 - call
PN-II-PT-PCCA-2013-4-0776
2014
-
2017
Role in this project:
Coordinating institution:
UNIVERSITATEA BUCURESTI
Project partners:
UNIVERSITATEA BUCURESTI (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA SI INGINERIE NUCLEARA " HORIA HULUBEI " - IFIN - HH (RO); MGM STAR CONSTRUCT S.R.L. (RO)
Affiliation:
UNIVERSITATEA BUCURESTI (RO)
Project website:
http://mdeo.eu/MDEO/Proiecte/PN288-2014/
Abstract:
Thin film based PV structures are well fitted for space technology, due to their reduced mass. This proposal aims at investigating technological routes for fabricating thin film based multiple junction photovoltaic (PV) structures of the type ZnS/ZnSe/CdTe in superstrate configurations and to study their endurance to energetic (2-10 MeV) protons and alpha particles, which are the main components of cosmic rays, at 10^10 - 10^14 cm^-2 fluencies. In the superstrate configuration one starts with depositing the transparent front-electrode onto the glass substrate which supports the entire structure, and then, on top of it the ZnS, ZnSe, CdTe layers and finally the back-electrode. The efficiencies of the cells in superstrate configurations will be characterized, and also their endurance to irradiation. Special attention will be paid to the physical properties and the electrical response of the back-contact metal/CdTe. CdTe, an excellent photon absorber with a forbidden gap of 1.4 eV and a large light absorption coefficient, is known as a “difficult” semiconductor: due to its rather large work function, a special care must be taken to prepare a quasi-ohmic low-resistance contact with a metal. Ion implantation will be used to control electrical properties of CdTe layer, by doping with properly selected electrically active impurities. A special attention will be paid to the quality of interfaces; an optimization of the PV structures will be performed. The nature of the defects introduced by irradiation will be studied and their influence on the performance of the structures will be indicated.
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High efficiency electrospinning
Call name:
Joint Applied Research Projects - PCCA-2011 call, Type 2
PN-II-PT-PCCA-2011-3.2-1017
2012
-
2016
Role in this project:
Coordinating institution:
INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA
Project partners:
INSTITUTUL NATIONAL DE CERCETARE - DEZVOLTARE PENTRU FIZICA MATERIALELOR BUCURESTI RA (RO); INSTITUTUL NATIONAL DE CERCETARE DEZVOLTARE PENTRU FIZICA LASERILOR, PLASMEI SI RADIATIEI - INFLPR RA (RO); UNIVERSITATEA TEHNICĂ "GHEORGHE ASACHI" IAŞI (RO); UNIVERSITATEA BUCURESTI (RO); ADINA S.R.L. (RO)
Affiliation:
UNIVERSITATEA BUCURESTI (RO)
Project website:
http://www.infim.ro/projects/high-efficiency-electrospinning
Abstract:
The main objective of the project is to develop a highly efficient alternative of the electrospinning method for preparing polymer nanofibers. The fabrication process we develop aims at using, instead of the classical spinnerets (syringes and pipettes), arrays of metallic micronic and submicronic tubules.
Secondary objectives will be the fabrication of functional metallic fibers, fabrics and products based on it for shielding applications and of complex fibers and fabrics for photovoltaic applications.
The process of electrospinning has numerous advantages. Properties of the fibers can be well controlled. The fibers are very thin and have a high length to diameter ratio, thereby providing a very large surface area per mass unit. A wide range of polymers can be processed in this manner including here natural polymers such as collagen, fibrinogen or polysaccharides. Is a method that allows one to deposit very thin polymer fibers, diameter down to few tens of nanometers.
Although the process is studied since long time ago, a scan through recent scientific literature presents the main shortcoming of the method, the low yield in terms of quantity of material produced.
Thus, the consortium approaches a problem of high technical and scientific interest, namely to develop an alternative to the method in order to increase the efficiency of nanofiber fabrication through electrospinning. We aim at replacing the classic syringe needle, pipette or other capillary with an array of metallic micrometer or submicrometer tubules prepared by a template approach.
The main objective of the groups involved in the present project is related to making the transition from the simple preparation of nanostructures towards fabricating functional nanostructures , namely of polymer, metallic and complex semiconducting fibers with high application potential. The research which will be performed is channeled in a direction strongly connected to the tendencies at international scale.
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Analogies between electron transport in nanostructures and light propagation
Call name:
Exploratory Research Projects - PCE-2011 call
PN-II-ID-PCE-2011-3-0224
2011
-
2016
Role in this project:
Coordinating institution:
Universitatea din Bucuresti
Project partners:
Universitatea din Bucuresti (RO)
Affiliation:
Project website:
http://mdeo.eu/mdeo/proiecte/ID0224/
Abstract:
The project will explore the analogies between propagation of electromagnetic waves and electron transport in both semiconductor nanostructures governed by the Schrödinger equation and graphene, described by the Dirac equation. In the first case, the analogies are based on the formal similarity between the time-independent Schrödinger equation and the Helmholtz equation, while in the second case the spinor wavefunction in graphene can be put into correspondence with the polarization states of light, electromagnetic field components or light propagation in photonic bandgap structures with a honeycomb lattice. Although electrons and photons differ in many aspects, such as quantum statistics or electric charge, analogies between them have been evidenced in ballistic, i.e. collisionless, and multiple-scattering propagation regimes, when phase coherent effects are preserved. The aim of the project is to develop analogies for cases that have not been studied before, with the intent to emphasize the differences as well as the similarities between electron and photon propagation. In particular, the project is expected to contribute theoretically and experimentally to a better understanding of electron transport in asymmetric inhomogeneous disordered nanoscale conductors and could lead to the design of novel devices based on the analogies between electron and light propagation.
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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
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