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Dr. Cristian Eugen SIMION

Scientific Researcher II

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

simion[AT]infim[DOT]ro

Positions

C.S. II

Projects

1. Insights about sensing mechanisms with Nickel oxide based gas sensors

Project Type: PCE, Start Date: 2021-01-04 End Date: 2023-12-31

Publications

1. 'Put variety in White': Multi-analytical investigation of the white pigments inlaid on Early Chalcolithic pottery from Southern Romania
Authors: Opris, V; Velea, A; Secu, M; Rostas, AM; Buruiana, AT; Simion, CA; Mirea, DA; Matei, E; Bartha, C; Dimache, M; Lazar, C

Published: APR 2022, JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS, 42, 103402, DOI: 10.1016/j.jasrep.2022.103402

2. 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

3. 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

4. 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, DOI: 10.3390/chemosensors9090244

5. 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, DOI: 10.3390/chemosensors9060125

6. Special Issue "Advanced Materials for Gas Sensors"
Authors: Simion, CE

Published: NOV 2021, MATERIALS, 14, DOI: 10.3390/ma14226765

7. 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, DOI: 10.3390/ma14020465

8. DEPOSITION AND CHARACTERIZATION OF THIN FILMS BASED ON NANOSTRUCTURED WO3 AS SENSORIAL ELEMENTS FOR DETECTION O F H2S
Authors: Sobetkii, A; Olaru, MT; Cindemir, U; Osterlund, L; Stanoiu, A; Simion, CE; Bejan, SE; Irimescu, RE

Published: 2020, REVISTA ROMANA DE MATERIALE-ROMANIAN JOURNAL OF MATERIALS, 50, 394, DOI:

9. 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, DOI: 10.1016/j.snb.2020.127717

10. 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, DOI: 10.3390/ma13092196

11. 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, DOI: 10.3390/ma13214797

12. 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, DOI: 10.3390/ma13214888

13. Humidity-Tolerant Ultrathin NiO Gas-Sensing Films
Authors: Wilson, RL; Simion, CE; Stanoiu, A; Taylor, A; Guldin, S; Covington, JA; Carmalt, CJ; Blackman, CS

Published: MAY 22 2020, ACS SENSORS, 5, 1397, DOI: 10.1021/acssensors.0c00172

14. 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

15. Conductance Model for Single-Crystalline/Compact Metal Oxide Gas-Sensing Layers in the Nondegenerate Limit: Example of Epitaxial SnO2(101)
Authors: Simion, CE; Schipani, F; Papadogianni, A; Stanoiu, A; Budde, M; Oprea, A; Weimar, U; Bierwagen, O; Barsan, N

Published: SEP 2019, ACS SENSORS, 4, 2428, DOI: 10.1021/acssensors.9b01018

16. 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

17. USING RADIOMETRIC AND NON RADIOMETRIC METHODS FOR A COMPLEX CHARACTERIZATION OF A HISTORICAL MONUMENT ENSEMBLE; OTETELESANU EX-MANSION FROM MAGURELE TOWN, ROMANIA, CASE STUDY
Authors: Simion, CA; Sava, TB; Gaza, O; Pacesila, DG; Florea, NM; Ghita, DG; Manea, MM; Straticiuc, M; Andrei, RF; Calin, MR; Radulescu, I; Lukacs, A; Ionescu, DD; Nemteanu, R; Sabo, EE

Published: 2019, ROMANIAN JOURNAL OF PHYSICS, 64, DOI:

18. The Effect of Film Thickness on the Gas Sensing Properties of Ultra-Thin TiO2 Films Deposited by Atomic Layer Deposition
Authors: Wilson, RL; Simion, CE; Blackman, CS; Carmalt, CJ; Stanoiu, A; Di Maggio, F; Covington, JA

Published: MAR 2018, SENSORS, 18, DOI: 10.3390/s18030735

19. H2S sensing mechanism of SnO2-CuWO4 operated under pulsed temperature modulation
Authors: Simion, CE; Somacescu, S; Teodorescu, VS; Osiceanu, P; Stanoiu, A

Published: APR 15 2018, SENSORS AND ACTUATORS B-CHEMICAL, 259, 268, DOI: 10.1016/j.snb.2017.12.027

20. 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

21. 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

22. 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:

23. 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:

24. Sensors based on mesoporous SnO2-CuWO4 with high selective sensitivity to H2S at low operating temperature
Authors: Stanoiu, A; Simion, CE; Calderon-Moreno, JM; Osiceanu, P; Florea, M; Teodorescu, VS; Somacescu, S

Published: JUN 5 2017, JOURNAL OF HAZARDOUS MATERIALS, 331, 160, DOI: 10.1016/j.jhazmat.2017.02.038

25. AMMONIA SENSING WITH 5 MOL% LANTHANUM DOPED BARIUM STRONTIUM TITANATE UNDER HUMID AIR BACKGROUND
Authors: Simion, CE; Stanoiu, A; Teodorescu, VS; Rusti, CF; Piticescu, RM; Vasile, E; Vasile, E; Tudor, IA

Published: FEB 2016, REVUE ROUMAINE DE CHIMIE, 61, +, DOI:

26. 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

27. Room temperature ammonia sensing with barium strontium titanate under humid air background
Authors: Simion, CE; Sackmann, A; Teodorescu, VS; Rusti, CF; Stanoiu, A

Published: DEC 1 2015, SENSORS AND ACTUATORS B-CHEMICAL, 220, 1246, DOI: 10.1016/j.snb.2015.07.045

28. Tuned Sensitivity Towards H2S and NH3 with Cu Doped Barium Strontium Titanate Materials
Authors: Simion, CE; Sackmann, A; Teodorescu, VS; Rusti, CF; Piticescu, RM; Stanoiu, A

Published: 2014, ELECTROCERAMICS XIV CONFERENCE, 1627, 97, DOI: 10.1063/1.4901664

29. Mesopororous (Sn0.9-xIn0.1CuxO2-delta)-O-(I) gas sensors with selectivity to H2S working under humid air conditions
Authors: Somacescu, S; Osiceanu, P; Calderon-Moreno, JM; Sackmann, A; Simion, CE; Stanoiu, A

Published: OCT 2014, MICROPOROUS AND MESOPOROUS MATERIALS, 197, 71, DOI: 10.1016/j.micromeso.2014.06.001

30. NO2 sensing mechanism of ZnO-Eu2O3 binary oxide under humid air conditions
Authors: Stanoiu, A; Simion, CE; Somacescu, S

Published: SEP 2013, SENSORS AND ACTUATORS B-CHEMICAL, 186, 694, DOI: 10.1016/j.snb.2013.06.083

31. NO2 sensing properties of Cr2O3 highlighted by work function investigations
Authors: Stanoiu, A; Simion, CE; Diamandescu, L; Tarabasanu-Mihaila, D; Feder, M

Published: NOV 1 2012, THIN SOLID FILMS, 522, 400, DOI: 10.1016/j.tsf.2012.09.003

32. Hydrothermal synthesis of ZnO-Eu2O3 binary oxide with straight strips morphology and sensitivity to NO2 gas
Authors: Somacescu, S; Dinescu, A; Stanoiu, A; Simion, CE; Moreno, JMC

Published: DEC 15 2012, MATERIALS LETTERS, 89, 222, DOI: 10.1016/j.matlet.2012.08.100

33. Influence of humidity on CO sensing with p-type CuO thick film gas sensors
Authors: Hubner, M; Simion, CE; Tomescu-Stanoiu, A; Pokhrel, S; Barsan, N; Weimar, U

Published: APR 20 2011, SENSORS AND ACTUATORS B-CHEMICAL, 153, 353, DOI: 10.1016/j.snb.2010.10.046

34. Direct Production of a Novel Iron-Based Nanocomposite from the Laser Pyrolysis of Fe(CO)(5)/MMA Mixtures: Structural and Sensing Properties
Authors: Alexandrescu, R; Morjan, I; Tomescu, A; Simion, CE; Scarisoreanu, M; Birjega, R; Fleaca, C; Gavrila, L; Soare, I; Dumitrache, F; Prodan, G

Published: 2010, JOURNAL OF NANOMATERIALS, 2010, DOI: 10.1155/2010/324532

35. DIFFERENCES IN THE GAS SENSING PROPERTIES READOUT WITH N AND P-TYPE MOX MATERIALS
Authors: Simion, CE; Tomescu-Stanoiu, A

Published: 2010, 2010 INTERNATIONAL SEMICONDUCTOR CONFERENCE (CAS), VOLS 1 AND 2, 204, DOI:

36. Structure and properties of silver doped SnSe2 and Ge2Sb2Te5 thin films prepared by pulsed laser deposition
Authors: Popescu, M; Velea, A; Sava, F; Lorinczi, A; Tomescu, A; Simion, C; Matei, E; Socol, G; Mihailescu, IN; Andonie, A; Stamatin, I

Published: MAR 2010, PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 207, 520, DOI: 10.1002/pssa.200982900

37. CO sensing mechanism with WO3 based gas sensors
Authors: Hubner, M; Simion, CE; Haensch, A; Barsan, N; Weimar, U

Published: NOV 26 2010, SENSORS AND ACTUATORS B-CHEMICAL, 151, 106, DOI: 10.1016/j.snb.2010.09.040

38. Synthesis, Mechanism, and Gas-Sensing Application of Surfactant Tailored Tungsten Oxide Nanostructures
Authors: Pokhrel, S; Simion, CE; Teodorescu, VS; Barsan, N; Weimar, U

Published: JUN 9 2009, ADVANCED FUNCTIONAL MATERIALS, 19, 1774, DOI: 10.1002/adfm.200801171

39. Investigations of conduction mechanism in Cr2O3 gas sensing thick films by ac impedance spectroscopy and work function changes measurements
Authors: Pokhrel, S; Simion, CE; Quemener, V; Barsan, N; Weimar, U

Published: JUL 28 2008, SENSORS AND ACTUATORS B-CHEMICAL, 133, 83, DOI: 10.1016/j.snb.2008.01.054

40. Sensitivity to Reducing Gases of Polymer-Iron Nanocomposite Materials
Authors: Tomescu, A; Simion, CE; Alexandrescu, R; Morjan, I; Scarisoreanu, M

Published: 2008, ROMANIAN JOURNAL OF INFORMATION SCIENCE AND TECHNOLOGY, 11, 95, DOI:

41. Structure, properties and gas sensing effect of SnSe2 films prepared by pulsed laser deposition method
Authors: Popescu, M; Sava, F; Lorinczi, A; Socol, G; Mihailescu, IN; Tomescu, A; Simion, C

Published: JUN 15 2007, JOURNAL OF NON-CRYSTALLINE SOLIDS, 353, 1869, DOI: 10.1016/j.jnoncrysol.2007.02.055

42. Conduction mechanism involved in sensing mechanism of SnSe2
Authors: Tomescu, A; Simion, CE

Published: JUN 2007, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 9, 1897, DOI:

43. Influence of calcination temperature on the electrical signal of SnSe2 sensors
Authors: Tomescu, A; Simion, CE

Published: 2007, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 1, 121, DOI:

44. Gas-sensing by Polymer-Iron nanocomposite materials
Authors: Tomescu, A; Simion, CE; Alexandrescu, R; Morjan, I; Scarisoreanu, M

Published: 2007, CAS 2007 INTERNATIONAL SEMICONDUCTOR CONFERENCE, VOLS 1 AND 2, PROCEEDINGS, +, DOI:

45. Triple-barrier resonant tunneling: A transfer matrix approach
Authors: Simion, CE; Ciucu, CI

Published: 2007, ROMANIAN REPORTS IN PHYSICS, 59, 817, DOI:

46. (Te/SnSe2)(3) multilayers deposited by pulsed laser deposition. Structure and gas sensing properties
Authors: Lorinczi, A; Sava, F; Tomescu, A; Simion, C; Socol, G; Mihailescu, IN; Popescu, M

Published: NOV 2007, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 9, 3492, DOI:

47. The molecular structure of some urea and thiourea derivatives
Authors: Bally, I; Simion, C; Mazus, MD; Deleanu, C; Popa, N; Bally, D

Published: APR 20 1998, JOURNAL OF MOLECULAR STRUCTURE, 446, 68, DOI: 10.1016/S0022-2860(97)00400-6

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