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Eng. Ovidiu FLOREA

Technological Development Engineer

Laboratory of Atomic Structures and Defects in Advanced Materials (LASDAM)

ovidiu[DOT]florea[AT]infim[DOT]ro
Keywords: Chemoresistive gas sensors, Gas Mixing System

Education

2012-2015: MSc in Physics - Applied Physics: Photonics, Spectroscopy, Plasma, Lasers.

University of Bucharest, Faculty of Physics.

2007-2012: BSc in Physics - Technological Physics.

University of Bucharest, Faculty of Physics.

Positions

Technical Development Engineer at National Institute of Materials Physics, Romania.

Laboratory of Atomic Structures and Defects in Advanced Materials (LASDAM), Gas Sensors group.

Research interests

Electrical characterization of chemoresistive gas sensors (electrical resistance and work function measurements).

Data acquisition and graphical representation (gas sensors sensitivity, selectivity, stability, response/recovery time, contact potential difference, work function, surface band bending, electron affinity).

Expertize

Gas Mixing System (GMS) operator, calibration and maintenance.

Equipment automation: electrometers, scanner cards, multimeters, power supplies.

Publications

Open Access
1. Influence of Synthesis Method and Electrode Geometry on GHG-Sensing Properties of 5%Gd-Doped SnO2
Authors: Simion, CE; Mihalcea, CG; Iacoban, AC; Dinu, IV; Predoi, D; Vlaicu, ID; Florea, OG; Stanoiu, A

Published: AUG 2024, CHEMOSENSORS, 12, 148, DOI: 10.3390/chemosensors12080148

2. Conduction mechanism of Gd2O3 induced by CO2 under in-field conditions
Authors: Dinu, IV; Simion, CE; Apostol, NG; Florea, OG; Mihalcea, CG; Stanoiu, A

Published: MAR 2024, PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 157, 115862, DOI: 10.1016/j.physe.2023.115862

3. Low traces of acetone detection with WO3-based chemical sensors
Authors: Stanoiu, A; Vlaicu, ID; Iacoban, AC; Mihalcea, CG; Ghica, C; Florea, OG; Dinu, IV; Mercioniu, I; Simion, CE

Published: APR 1 2024, MATERIALS CHEMISTRY AND PHYSICS, 316, 129105, DOI: 10.1016/j.matchemphys.2024.129105

Open Access
4. CO2 Interaction Mechanism of SnO2-Based Sensors with Respect to the Pt Interdigital Electrodes Gap
Authors: Stanoiu, A; Iacoban, AC; Mihalcea, CG; Dinu, IV; Florea, OG; Vlaicu, ID; Simion, CE

Published: NOV 2024, CHEMOSENSORS, 12, 238, DOI: 10.3390/chemosensors12110238

5. In-depth insight into the structural properties of nanoparticulate NiO for CO sensing
Authors: Mihalcea, CG; Stefan, M; Ghica, C; Florea, OG; Stanoiu, A; Simion, CE; Somacescu, S; Ghica, D

Published: APR 1 2024, APPLIED SURFACE SCIENCE, 651, 159252, DOI: 10.1016/j.apsusc.2023.159252

6. The impact of the synthesis temperature on SnO2 morphology and sensitivity to CO2 under in-field conditions
Authors: Kuncser, AC; Vlaicu, ID; Dinu, IV; Simion, CE; Iacoban, AC; Florea, OG; Stanoiu, A

Published: OCT 15 2022, MATERIALS LETTERS, 325, 132855, DOI: 10.1016/j.matlet.2022.132855

7. Influence of relative humidity on CO2 interaction mechanism for Gd-doped SnO2 with respect to pure SnO2 and Gd2O3
Authors: Ghica, C; Mihalcea, CG; Simion, CE; Vlaicu, ID; Ghica, D; Dinu, IV; Florea, OG; Stanoiu, A

Published: OCT 1 2022, SENSORS AND ACTUATORS B-CHEMICAL, 368, 132130, DOI: 10.1016/j.snb.2022.132130

Open Access
8. Effects of Calcination Temperature on CO-Sensing Mechanism for NiO-Based Gas Sensors
Authors: Stanoiu, A; Ghica, C; Mihalcea, CG; Ghica, D; Somacescu, S; Florea, OG; Simion, CE

Published: MAY 2022, CHEMOSENSORS, 10, 191, DOI: 10.3390/chemosensors10050191

Open Access
9. CuWO4 with CuO and Cu(OH)2 Native Surface Layers for H2S Detection under in-Field Conditions
Authors: Somacescu, S; Stanoiu, A; Dinu, IV; Calderon-Moreno, JM; Florea, OG; Florea, M; Osiceanu, P; Simion, CE

Published: JAN 2021, MATERIALS, 14, 465, DOI: 10.3390/ma14020465

Open Access
10. Insights about CO Gas-Sensing Mechanism with NiO-Based Gas Sensors-The Influence of Humidity
Authors: Simion, CE; Ghica, C; Mihalcea, CG; Ghica, D; Mercioniu, I; Somacescu, S; Florea, OG; Stanoiu, A

Published: SEP 2021, CHEMOSENSORS, 9, 244, DOI: 10.3390/chemosensors9090244

Open Access
11. Sensing Properties of NiO Loaded SnO2 Nanoparticles-Specific Selectivity to H2S
Authors: Stanoiu, A; Kuncser, AC; Ghica, D; Florea, OG; Somacescu, S; Simion, CE

Published: JUN 2021, CHEMOSENSORS, 9, 125, DOI: 10.3390/chemosensors9060125

Open Access
12. Nanostructured Cobalt Doped Barium Strontium Titanate Thin Films with Potential in CO2 Detection
Authors: Ciobota, CF; Piticescu, RM; Neagoe, C; Tudor, IA; Matei, A; Dragut, DV; Sobetkii, A; Anghel, EM; Stanoiu, A; Simion, CE; Florea, OG; Bejan, SE

Published: NOV 2020, MATERIALS, 13, 4797, DOI: 10.3390/ma13214797

13. Low temperature CO sensing under infield conditions with in doped Pd/SnO2
Authors: Stanoiu, A; Ghica, C; Somacescu, S; Kuncser, AC; Vlaicu, AM; Mercioniu, IF; Florea, OG; Simion, CE

Published: APR 1 2020, SENSORS AND ACTUATORS B-CHEMICAL, 308, 127717, DOI: 10.1016/j.snb.2020.127717

Open Access
14. CeO2:Mn3O4 Catalytic Micro-Converters Tuned for CH4 Detection Based on Catalytic Combustion under Real Operating Conditions
Authors: Simion, CE; Florea, OG; Florea, M; Neatu, F; Neatu, S; Trandafir, MM; Stanoiu, A

Published: MAY 2020, MATERIALS, 13, 2196, DOI: 10.3390/ma13092196

Open Access
15. Methane Combustion Using Pd Deposited on CeOx-MnOx/La-Al2O3 Pellistors
Authors: Florea, OG; Stanoiu, A; Gheorghe, M; Cobianu, C; Neatu, F; Trandafir, MM; Neatu, S; Florea, M; Simion, CE

Published: NOV 2020, MATERIALS, 13, 4888, DOI: 10.3390/ma13214888

16. Bulk Versus Surface Modification of Alumina with Mn and Ce Based Oxides for CH4 Catalytic Combustion
Authors: Neatu, S; Trandafir, MM; Stanoiu, A; Florea, OG; Simion, CE; Leonat, LN; Cobianu, C; Gheorghe, M; Florea, M; Neatu, F

Published: JUN 1 2019, MATERIALS, 12, DOI: 10.3390/ma12111771

17. Nanoclustered Pd decorated nanocrystalline Zn doped SnO2 for ppb NO2 detection at low temperature
Authors: Somacescu, S; Ghica, C; Simion, CE; Kuncser, AC; Vlaicu, AM; Stefan, M; Ghica, D; Florea, OG; Mercioniu, IF; Stanoiu, A

Published: SEP 1 2019, SENSORS AND ACTUATORS B-CHEMICAL, 294, 156, DOI: 10.1016/j.snb.2019.05.033

18. Networked mesoporous SnO2 nanostructures templated by Brij (R) 35 with enhanced H2S selective performance
Authors: Stanoiu, A; Simion, CE; Sackmann, A; Baibarac, M; Florea, OG; Osiceanu, P; Teodorescu, VS; Somacescu, S

Published: NOV 1 2018, MICROPOROUS AND MESOPOROUS MATERIALS, 270, 101, DOI: 10.1016/j.micromeso.2018.05.008

19. H2S selective sensitivity of Cu doped BaSrTiO3 under operando conditions and the associated sensing mechanism
Authors: Stanoiu, A; Piticescu, RM; Simion, CE; Rusti-Ciobota, CF; Florea, OG; Teodorescu, VS; Osiceanu, P; Sobetkii, A; Badilita, V

Published: JUL 1 2018, SENSORS AND ACTUATORS B-CHEMICAL, 264, 336, DOI: 10.1016/j.snb.2018.03.013

20. Gas sensing mechanism involved in H2S detection with NiO loaded SnO2 gas sensors
Authors: Simion, CE; Florea, OG; Stanoiu, A

Published: 2017, ROMANIAN JOURNAL OF INFORMATION SCIENCE AND TECHNOLOGY, 20, 425, DOI:

21. Gas sensing properties of NiO/mesoporous SnO2
Authors: Stanoiu, A; Somacescu, S; Simion, CE; Calderon-Moreno, JM; Florea, OG

Published: 2017, 2017 INTERNATIONAL SEMICONDUCTOR CONFERENCE (CAS), 40TH EDITION, 96, DOI:

22. Low level NO2 detection under humid background and associated sensing mechanism for mesoporous SnO2
Authors: Stanoiu, A; Somacescu, S; Calderon-Moreno, JM; Teodorescu, VS; Florea, OG; Sackmann, A; Simion, CE

Published: AUG 2016, SENSORS AND ACTUATORS B-CHEMICAL, 231, 174, DOI: 10.1016/j.snb.2016.02.137

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