Research contract: PN-II-ID-PCE-2012-4-0629; No. 81/2013
Project manager:
Dr. Gheorghe Dinescu, CS I, e-mail: dinescug@infim.ro

Contracting Authority: Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii
Funding: Govermental budget, Ministry of Education
Contract duration: 37 month


Institutions involved in the project:

National Institute for Laser, Plasma and Radiation Physics (NILPRP)
Low Temperature Plasma Laboratory
Plasma Processes for Funtional Materials and Surfaces


Research team

Nr. crt.
Surename, Firstname
Place in project
Dinescu, Gheorghe
Project manager
Mitu, Bogdana
Senior Scientist
Dinescu, Maria
Senior Scientist
Vizireanu, Sorin
Postdoctoral Scientist
Lazea, Andrada
Postdoctoral Scientist
Filipescu, Mihaela
Postdoctoral Scientist
Ionita, Rosini
Postdoctoral Scientist
Acsente, Tomy
Postdoctoral Scientist
Bazavan, Marian
Scientist, Lecturer
Stancu, Claudia
Postdoctoral Scientist
Stancu, Cristian
Postdoctoral Scientist
Ionita, Daniela
Postdoctoral Scientist
Satulu, Veronica
Postdoctoral Scientist
Stoica, Daniel
Postdoctoral Scientist
Teodorescu, Maximilian
Postdoctoral Scientist
Marascu, Valentina
Master student
Niculae, Ion



The most advanced nanostructured materials are the carbonic ones. Among others, the carbon nanowalls (CNW) and carbon nanofibers (CNF) attracted attention due to their physical and chemical characteristics deriving from the reduced dimensionality, shape, and asymmetry. Previously we have demonstrated successful growth of CNW and CNF by a low pressure, radiofrequency plasma jet, in the same deposition reactor. In this project we propose a comprehensive investigation of plasma state (concerning the atomic and molecular species, electrons, ions, and their energies) when used for nanofibers growth, for carbon nanowalls growth and during the excursion of process parameters from the values corresponding to CNF to those of CNW growth. In connection with plasma investigation, we will perform the characterization (morphology, structure) of the material deposited at the same parameter values. By this two-fold approach we aim to clarify which are the plasma internal parameters which dictate the growth regimes for nanofibers and nanowalls, respectively, and to define the zone of growth switching between the two regimes. Recent research focuses on hybrid nanomaterials, consisting of assembled domains of different type of nanostructures. Based on the obtained knowledge, we will attempt to obtain hybrid architectures consisting of successive layers or combined domains of CNF/CNW by repetitive switching of the growth regime, or by their simultaneous deposition in the regime switching zone.


Specific objectives

The main objective of the project is to realize, under a complete monitoring of the plasma state, controlled synthesis of carbon nanofibers and nanowalls and to explore the opportunity of growing hybrid nanomaterials by controlled switching of growth regime from nanofibers to nanowalls. In particular we aim for:
i) associate values of the internal parameters specific to plasma state to the external parameters defining the process of deposition of CNF, as well as for the CNW deposition process
ii) identify the switching region of growth from nanofibers to nanowalls in terms of external and key internal parameters.



Results delivered within the project:
i) scientific data regarding the synthesis regime of carbon nanofibers and carbon nanowalls
ii) information regarding the possibility of elaboration of a process that can lead to obtaining hybrid materials based on combined architectures of nanometric fibers and nanowalls
iii) carbon nanofibers and nanowalls like materials
iv) scientific publications.


Working plan

Stage I. Integration of diagnostics techniques (OES, Langmuir probes, mass spectrometry) with the deposition setup
Deadline: November 2013
Stage II. Carbon nanofibers and nanowalls deposition. Plasma diagnostic studies at external parameters values defined for carbon nanowalls deposition
Deadline: November 2014

Summary report of the project 2013 - 2014 (RO)

Stage III. Plasma diagnostic studies at external parameters values defined for CNF growth. Material properties investigation during external parameters variation between values corresponding to CNF and CNW growth regime (RO)
Deadline: December 2015

Summary report of the project 2013 - 2015 (RO)

Stage IV. Plasma investigation between values corresponding to CNF and CNW growth regime
Deadline: November 2016


ISI papers

1. T.M. Dinh, A. Achour, S. Vizireanu, G. Dinescu, L. Nistor, K. Armstrong, D. Guay, D. Pech, Hydrous RuO2/carbon nanowalls hierarchical structures for all-solid-state ultrahigh-energy-density micro-supercapacitors, Nano Energy, 10, 288–294 (2014) (IF: 10,211)

2. E.C. Stancu, A.-M. Stanciuc, S. Vizireanu, C. Luculescu, L. Moldovan, A. Achour, G. Dinescu, Plasma functionalization of carbon nanowalls and its effect on attachment of fibroblast-like cells, Journal of Physics D: Applied Physics 47, 265203 (2014) (IF: 2,521)

3. A. Lazea-Stoyanova, M. Enculescu, S. Vizireanu, V. Mărăscu, G. Dinescu, Effects of process parameters on growth of metal particles by atmospheric pressure plasma jet, Digest Journal of Nanomaterials and Biostructures, 9, 3, 1241 – 1247 (2014) (IF: 1,123)

4. D.L. Cursaru, S. Vizireanu, S. Mihai, D. Ghiţă, D.S. Stoica, G. Dinescu, Friction and wear properties of carbon nanowalls coatings, Digest Journal of Nanomaterials and Biostructures, 9, 3, 1105 – 1114 (2014) (IF: 1,123)

5. R. Ion, S. Vizireanu, C.E. Stancu, C. Luculescu, A. Cimpean, G. Dinescu, Surface plasma functionalization influences macrophage behavior on carbon nanowalls, Materials Science & Engineering C, 48, 118–125 (2015) (IF: 3,088)

6. M. Mozetic, A. Vesel, S.D. Stoica, S. Vizireanu, G. Dinescu, R. Zaplotnik, Oxygen atom loss coefficient of carbon nanowalls, Applied Surface Science 333, 207–213 (2015) (IF: 2,711)

7. C. Constantinescu, S. Vizireanu, V. Ion, G. Aldica, S.D. Stoica, A. LazeaStoyanova, A.-P. Alloncle, P. Delaporte, G. Dinescu, Laser-induced forward transfer of carbon nanowalls for soft electrodes fabrication, Applied Surface Science, Available online 14 September 2015 (IF: 2,711)

8. V. Mărăscu, S. Vizireanu, S.D. Stoica, V. Barna, A. Lazea-Stoyanova, G. Dinescu, FTIR investigation of the ageing process of carbon nanowalls, Romanian Reports in Physics, in press (2015) (IF: 1,517)


Invited lectures
1. S. Vizireanu, A. Lazea, T. Acsente, B. Mitu, G. Dinescu, Carbon nanowalls and metallic particles: synthesis by plasma and applications, 1st International Symposium on Nanoparticles/Nanomaterials and Applications (ISN2A), Caparica, Lisbon, Portugal, 20th-22th January 2014

2. G. Dinescu, S. Vizireanu, T. Acsente, B. Mitu, A. Lazea, D. Stoica, V. Marascu, Plasma Synthesis and Processing of Carbon Nanowalls and Submicron Metallic Particles, 27th International Symposium on the Physics of Ionized Gases (SPIG 2014) Belgrade, Serbia, 26th-29th August 2014

3. G. Dinescu, Control of application-related properties of carbon nanowalls synthesized by a plasma jet, Conference iPLasmaNano-V, Torremolinos, Malaga, Spain, September 28th-October 2nd 2014

4. G. Dinescu, A. Lazea-Stoyanova, T. Acsente, V.S. Teodorescu, V. Marascu, Growth of particles in plasma at low and atmospheric pressurestarting from metallic targets, 75th IUVSTA Workshop on Sheath Phenomena in Plasma Processing of Advanced Materials, 19th-23rd January 2015, Cerklje, Slovenia


Contributions at international conferences
1. S. Vizireanu, S.D. Stoica, M.D. Ionita, A. Lazea, G. Dinescu, Modification of carbon nanowalls by plasma jets submerged in liquids, COST TD1208 Annual meeting, “Electrical discharges with liquids for future applications”, Lisboa, Portugal, 10-13 March 2014 (rezumat in Book of Abstracts, prezentare poster)

2. S.D. Stoica, S. Vizireanu, C.R. Luculescu, B. Mitu, G. Dinescu, Influence of nozzle geometry on the properties of CNW synthesized in a plasma jet, E-MRS 2014 Spring Meeting, Lille, France, May 26-30 2014 (G.PII. 24) (rezumat in Book of Abstracts, prezentare poster)

3. S. Vizireanu, E.C. Stancu, D. Ionita, C. Luculescu, A.M. Stanciuc, L. Moldovan, G. Dinescu, Response of fibroblast cells on plasma modified nanostructured carbon surfaces, BiomMedD’2014, Constanta, Romania, 17th-20th September 2014 (rezumat in Book of Abstracts, prezentare poster)

4. S. Vizireanu, S.D. Stoica, M.D. Ionita, B. Mitu, C.E. Stancu, A. LazeaStoyanova, C. Luculescu, L. Nistor, G. Dinescu, Plasma synthesis, processing and applications of carbon nanowalls, E-MRS 2015 Spring Meeting, May 11- 15, 2015, Lille, France (rezumat in Book of Abstracts, prezentare orala)

5. S. Vizireanu, M.D. Ionita, S.D. Stoica, M. Ionita, G. Dinescu, Modification of carbon nanowalls/water suspension by submerged plasma jets, 2nd Annual Meeting Barcelona - COST TD1208 - Electrical discharges with liquids for future applications, Barcelona, Spain, 23 - 26 February 2015 (rezumat in Book of Abstracts, prezentare poster)

6. S.D. Stoica, S. Vizireanu, C.R. Luculescu, M. Bazavan, B. Mitu, G. Dinescu, Influence of substrate temperature on the plasma and carbon material properties in a low pressure RF plasma jet deposition system, 32nd ICPIG, July 26-31, 2015, Iași, Romania (publicat in extensor in Proccedings - 4 pagini, prezentare poster) (P3.45)

7. V. Mărăscu, I. Chițescu, V. Barna, M.D. Ioniță, A. Lazea-Stoyanova, B. Mitu, G. Dinescu, Application of image recognition algorithms for statistical description of nano- and microstructured surfaces, 9th International Physics Conference of the Balkan Physical Union- BPU9, Istanbul University, 24-27 August, 2015, Turkey (rezumat in Book of Abstracts, prezentare poster)


International patent
Dr. Ita Junkar, Dr. Martina Modic, Dr. Alenka Vesel, Prof. Dr. Gheorghe Dinescu, Dr. Sorin Ionuț Vizireanu, Dr. Silviu-Daniel Stoica, Prof. Dr. Karin Stana Kleinschek, Prof. Dr. Miran Mozetic, Method of growing carbon nanowalls on a substrate, depus în Marea Britanie pe 13.10.2014, cu numărul 14180




Plasma Processes, Materials and Surfaces Group