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Dr. mariansima

Scientific Researcher II

Laboratory of Optical Processes in Nanostructured Materials

msima[AT]infim[DOT]ro

Education

University of Bucharest, Faculty of Chemistry (Department of Physical Chemistry). Licence in Chemistry-1981.
• Doctoral degree in Chemistry, University Politehnica of Bucharest-1996, for studies on electrochemistry of conducting polymers.

Awards

Romanian Academy prize Stefan Procopiu/2004

Expertize

Semiconductor electrochemistry, photoelectrochemistry, nanostructured materials

Patents

1. Printer for the deposition of ultra-thin layers with different physico-chemical properties

Patent number: RO 132082/2019

Inventors: M. Iliescu, M. Lazar, I. Pintilie, L. Vladareanu, T. Necsoiu, V. Stancu, A.G. Tomulescu, C. Stan Besleaga, M. Sima, L. Leonat, E.M. Stanciu, B. Comanescu, V.A. Enuica

2. Method for producing a thermoelectric material

Patent number: RO 12753/2014

Inventors: Marian Sima, Anca Cojocaru, Mariana Sima

  
  
  

3. Zinc/polyaniline compact secondary electric cell

Patent number: RO 114206-B1/1999

Inventors: Marian Sima, Teodor Visan, Mariana Sima

4. Method for drying of sodium iodide

Patent number: RO 91709/1986

Inventor: Marian Sima

 

Publications

1. Water oxidation at photoanodes based on hematite films and nanowire arrays
Authors: Sima, M; Matei, E; Vasile, E; Sima, A; Preda, N; Logofatu, C

Published: APR 30 2021, THIN SOLID FILMS, 724, DOI: 10.1016/j.tsf.2021.138626

2. Effect of ferroelectric poling on the photoelectrochemical activity of hematite-BaTiO3 nanowire arrays
Authors: Sima, M; Vasile, E; Preda, N; Sima, A; Matei, E; Logofatu, C

Published: OCT 22 2021, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 46, 36244, DOI: 10.1016/j.ijhydene.2021.08.152

3. TiO2/Fe2O3 photoanodes for solar water oxidation prepared via electrodeposition of amorphous precursors
Authors: Vasile, E; Sima, M; Sima, A; Logofatu, C

Published: JAN 2020, MATERIALS RESEARCH BULLETIN, 121, DOI: 10.1016/j.materresbull.2019.110623

4. PHOTOELECTROCHEMICAL WATER OXIDATION ON HEMATITE FILMS IN NEUTRAL AND ALKALINE ELECTROLYTES
Authors: Vasile, E; Sima, M; Sima, A

Published: JUL-SEP 2020, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 15, 706, DOI:

5. Graphitic carbon nitride based photoanodes prepared by spray coating method
Authors: Sima, M; Vasile, E; Sima, A; Preda, N; Logofatu, C

Published: SEP 20 2019, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 44, 24440, DOI: 10.1016/j.ijhydene.2019.07.243

6. INVESTIGATION OF THE PHOTOELECTROCHEMICAL BEHAVIOR OF NANOCARBON/MESOPOROUS TiO2 FILMS
Authors: Sima, M; Vasile, E; Sima, A

Published: OCT-DEC 2019, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 14, 941, DOI:

7. Piezoelectric ferromagnetic BNT-BT0.08/CoFe2O4 coaxial core-shell composite nanotubes for nanoelectronic devices
Authors: Cernea, M; Vasile, BS; Surdu, VA; Trusca, R; Sima, M; Craciun, F; Galassi, C

Published: JUL 5 2018, JOURNAL OF ALLOYS AND COMPOUNDS, 752, 388, DOI: 10.1016/j.jallcom.2018.04.146

8. Investigation of the interactions of PVDF shell films with Ni core submicron wires and AAO matrix
Authors: Sima, M; Baibarac, M; Vasile, E; Sima, M; Schinteie, GA; Kuncser, V

Published: SEP 15 2018, PHYSICA B-CONDENSED MATTER, 545, 509, DOI: 10.1016/j.physb.2018.07.015

9. Photoanode for solar water oxidation based on titania and hematite films
Authors: Sima, M; Vasile, E; Sima, A

Published: JUL 31 2018, THIN SOLID FILMS, 658, 11, DOI: 10.1016/j.tsf.2018.05.019

10. Lead acetate film as precursor for two-step deposition of CH3NH3PbI3
Authors: Sima, M; Vasile, E; Sima, M

Published: MAY 2017, MATERIALS RESEARCH BULLETIN, 89, 96, DOI: 10.1016/j.materresbull.2017.01.031

11. PHOTOACTIVITY OF HEMATITE ELECTRODE PREPARED VIA ANODIC ELECTRODEPOSITION ON FTO AND FTO/TiO2 SUBSTRATES
Authors: Sima, M; Vasile, E; Sima, MA

Published: JUL-SEP 2017, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 12, 758, DOI:

12. Anodic deposition of nanostructured hematite film using agarose gel as template. Application in water splitting
Authors: Sima, M; Vasile, E; Sima, A; Logofatu, C

Published: DEC 20 2017, ELECTROCHIMICA ACTA, 258, 1462, DOI: 10.1016/j.electacta.2017.12.013

13. Iodine Migration and Degradation of Perovskite Solar Cells Enhanced by Metallic Electrodes
Authors: Besleaga, C; Abramiuc, LE; Stancu, V; Tomulescu, AG; Sima, M; Trinca, L; Plugaru, N; Pintilie, L; Nemnes, GA; Iliescu, M; Svavarsson, HG; Manolescu, A; Pintilie, I

Published: DEC 15 2016, JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 7, 5175, DOI: 10.1021/acs.jpclett.6b02375

14. Fabrication and Raman scattering of a core-shell structure based on Mn doped ZnO and barium titanate
Authors: Sima, M; Baibarac, M; Vasile, E; Sima, M; Mihut, L

Published: NOV 15 2015, APPLIED SURFACE SCIENCE, 355, 1062, DOI: 10.1016/j.apsusc.2015.07.191

15. Organic-inorganic solar cell based on ZnO nanorod arrays
Authors: Sima, M; Vasile, E; Sima, M

Published: SEP-OCT 2015, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 17, 1313, DOI:

16. Optical properties of Mn doped ZnO films and wires synthesized by thermal oxidation of ZnMn alloy
Authors: Sima, M; Mihut, L; Vasile, E; Sima, M; Logofatu, C

Published: SEP 1 2015, THIN SOLID FILMS, 590, 147, DOI: 10.1016/j.tsf.2015.07.072

17. Synthesis and Raman scattering of multiferroic Fe-Pb(Zr0.2Ti0.8)O-3 core-shell wire arrays
Authors: Baibarac, M; Sima, M; Matei, E; Pasuk, I; Mihut, L

Published: JAN 2014, PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 211, 205, DOI: 10.1002/pssa.201330062

18. Electrochemical Studies on the Growth Process of the Zinc Oxide Films from Nitrate Solutions
Authors: Dumitru, CS; Sima, M; Cojocaru, A

Published: JUL 2014, REVISTA DE CHIMIE, 65, 839, DOI:

19. Investigation on the electrodeposition of Pt-(Bi,Sb)(2)Te-3 nanocomposite as film and wires
Authors: Sima, M; Vasile, E; Buda, M; Sima, M

Published: MAY 1 2014, ELECTROCHIMICA ACTA, 127, 214, DOI: 10.1016/j.electacta.2014.02.032

20. PHOTOANODE FOR DYE-SENSITIZED SOLAR CELL BASED ON ELECTROPHORETICALLY DEPOSITED ZnO LAYER
Authors: Sima, M; Vasile, E; Sima, A

Published: APR-JUN 2013, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 8, 763, DOI:

21. ZnO films and nanorod/shell arrays electrodeposited on PET-ITO electrodes
Authors: Sima, M; Vasile, E; Sima, M

Published: APR 2013, MATERIALS RESEARCH BULLETIN, 48, 1586, DOI: 10.1016/j.materresbull.2012.12.045

22. Luminescent Eosin Y-SiO2 hybrid nano and microrods prepared by sol-gel template method
Authors: Secu, M; Secu, CE; Sima, M; Negrea, RF; Bartha, C; Dinescu, M; Damian, V

Published: NOV 2013, JOURNAL OF LUMINESCENCE, 143, 92, DOI: 10.1016/j.jlumin.2013.04.043

23. ELECTRODEPOSITION AND ANODIZING OF ZnMn ALLOY SUBMICRON WIRES
Authors: Sima, M; Sima, M

Published: JUL-SEP 2012, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 7, 882, DOI:

24. Electrochemical Investigation of the Deposition/Dissolution of Selenium in Choline Chloride with Urea or Ethylene Glycol Ionic Liquids
Authors: Cojocaru, A; Sima, M

Published: FEB 2012, REVISTA DE CHIMIE, 63, 223, DOI:

25. Preparation of nanostructured ZnO nanorods in a hydrothermal-electrochemical process
Authors: Sima, M; Vasile, E; Sima, M

Published: MAY 1 2012, THIN SOLID FILMS, 520, 4636, DOI: 10.1016/j.tsf.2011.10.116

26. Sol-gel template synthesis of luminescent glass-ceramic rods
Authors: Secu, M; Secu, CE; Sima, M

Published: APR 2012, JOURNAL OF NANOPARTICLE RESEARCH, 14, DOI: 10.1007/s11051-012-0772-1

27. Preparation of graphene and its application in dye-sensitized solar cells
Authors: Sima, M; Enculescu, I; Sima, A

Published: MAR 2011, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 5, 418, DOI:

28. Electrochemical Growth of Eosin Y/Manganese Doped ZnO as Hybrid Films and Nanowires
Authors: Sima, M; Visan, T; Matei, E; Ungureanu, F; Enculescu, I; Sima, M

Published: 2011, ZEITSCHRIFT FUR PHYSIKALISCHE CHEMIE-INTERNATIONAL JOURNAL OF RESEARCH IN PHYSICAL CHEMISTRY & CHEMICAL PHYSICS, 225, 339, DOI: 10.1524/zpch.2011.0042

29. Study of electrodeposition of (Bi,Sb)(2)Te-3 nanowires by voltammetric methods and electrochemical impedance spectroscopy
Authors: Sima, M; Vasile, E; Sima, M

Published: NOV-DEC 2011, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 13, 1602, DOI:

30. ELECTRICAL PROPERTIES OF (Zn,Cu)O:Mn SUBMICRON WIRES
Authors: Ion, L; Antohe, S; Sima, A; Sima, M

Published: OCT-DEC 2011, DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES, 6, 1700, DOI:

31. A new ZnO photoanode for dye-sensitized solar cell
Authors: Sima, M; Secu, M; Sima, M; Vasile, E

Published: SEP 2010, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 4, 1328, DOI:

32. Semiconductor Hybrid Structure: Nanowires Embedded in a Matrix from the Same Material
Authors: Sima, M; Vasile, E; Sima, M; Matei, E

Published: 2010, SEMICONDUCTORS, METAL OXIDES, AND COMPOSITES: METALLIZATION AND ELECTRODEPOSITION OF THIN FILMS AND NANOSTRUCTURES, 25, 161, DOI: 10.1149/1.3318514

33. Growth and Characterization of ZnO:Mn Submicron Wires via Electrodeposition from Nitrate-Lactic Acid Solution
Authors: Sima, M; Grecu, MN; Sima, M; Enculescu, I

Published: 2010, SEMICONDUCTORS, METAL OXIDES, AND COMPOSITES: METALLIZATION AND ELECTRODEPOSITION OF THIN FILMS AND NANOSTRUCTURES, 25, 171, DOI: 10.1149/1.3318515

34. Optical properties of CdS electrodeposited nanowires
Authors: Matei, E; Preda, N; Enculescu, M; Sima, M; Sima, M; Enculescu, I

Published: OCT 2009, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 3, 1022, DOI:

35. Electrochemically deposited thermoelectric Bi(2)(Se,Te)(3) nanowires
Authors: Sima, M; Vasile, E; Sima, M

Published: JUN 2009, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 3, 542, DOI:

36. Submicron wires with nanosized grain structure
Authors: Sima, M; Ion, L; Antohe, S; Vasile, E

Published: DEC 2009, SUPERLATTICES AND MICROSTRUCTURES, 46, 839, DOI: 10.1016/j.spmi.2009.09.010

37. Photoluminescence and thermoluminescence of ZnO nano-needle arrays and films
Authors: Secu, CE; Sima, M

Published: APR 2009, OPTICAL MATERIALS, 31, 880, DOI: 10.1016/j.optmat.2008.10.025

38. Transport properties of electrodeposited ZnO nanowires
Authors: Tazlaoanu, C; Ion, L; Enculescu, I; Sima, M; Enculescu, M; Matei, E; Neumann, R; Bazavan, R; Bazavan, D; Antohe, S

Published: MAY 2008, PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 40, 2507, DOI: 10.1016/j.physe.2007.07.013

39. Influence of polyvinylpyrolidone as an additive in electrochemical preparation of ZnO nanowires and nanostructured thin films
Authors: Enculescu, I; Matei, E; Sima, M; Enculescu, M; Sima, M; Ghica, C

Published: MAR-APR 2008, SURFACE AND INTERFACE ANALYSIS, 40, 560, DOI: 10.1002/sia.2749

40. PbSe nanowires grown by the template method
Authors: Sima, M; Enculescu, I; Sima, M

Published: 2008, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2, 70, DOI:

41. Preparation and Properties of Cobalt Doped ZnO Nanowires
Authors: Enculescu, I; Matei, E; Sima, M; Neumann, R; Granville, S; Ansermet, JP

Published: NOV 2008, IEEE TRANSACTIONS ON MAGNETICS, 44, 2680, DOI: 10.1109/TMAG.2008.2003242

42. Electrical properties of electrodeposited CdS nanowires
Authors: Ghenescu, M; Ion, L; Enculescu, I; Tazlaoanu, C; Antohe, VA; Sima, M; Enculescu, M; Matei, E; Neumann, R; Ghenescu, O; Covlea, V; Antohe, S

Published: MAY 2008, PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 40, 2488, DOI: 10.1016/j.physe.2007.09.188

43. Luminescence and EPR study of ZnO : Mn : Cu nanowire array
Authors: Sima, M; Enculescu, I; Grecu, MN; Secu, M; Sima, M; Matei, E; Vasile, V

Published: MAY 2008, PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 40, 2498, DOI: 10.1016/j.physe.2007.08.075

44. Nickel nanotubes prepared by electroless deposition in ion track templates
Authors: Enculescu, I; Sima, M; Enculescu, M; Matei, E; Molares, MET; Cornelius, T

Published: MAR 2008, OPTOELECTRONICS AND ADVANCED MATERIALS-RAPID COMMUNICATIONS, 2, 136, DOI:

45. EIS studies of electrodeposition process of manganese and copper doped ZnO wires
Authors: Sima, M; Enculescu, I; Sima, M; Vasile, E; Visan, T

Published: MAR-APR 2008, SURFACE AND INTERFACE ANALYSIS, 40, 565, DOI: 10.1002/sia.2721

46. Preparation of metallic nanowires with magnetic properties using the template method
Authors: Enculescu, I; Sima, M; Enculescu, M; Ghica, C; Enache, M; Neumann, R

Published: MAY 2007, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 9, 1470, DOI:

47. Influence of geometrical properties on light emission of ZnO nanowires
Authors: Enculescu, I; Sima, M; Enculescu, M; Enache, M; Vasile, V; Neumann, R

Published: SEP 2007, OPTICAL MATERIALS, 30, 75, DOI: 10.1016/j.optmat.2007.01.002

48. Micro and nanorods of alkali halides grown in polymer templates
Authors: Enculescu, M; Enculescu, I; Sima, M; Neumann, R; Trautmann, C

Published: MAY 2007, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 9, 1563, DOI:

49. Deposition and properties of CdTe nanowires prepared by template replication
Authors: Enculescu, I; Sima, M; Enculescu, M; Enache, M; Ion, L; Antohe, S; Neumann, R

Published: MAY 2007, PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 244, 1611, DOI: 10.1002/pssb.200675109

50. ZnO : Mn : Cu nanowires prepared by template method
Authors: Sima, M; Enculescu, I; Sima, M; Enache, M; Vasile, E; Ansermet, JP

Published: MAY 2007, PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 244, 1527, DOI: 10.1002/pssb.200675126

51. Semiconductor nanowires obtained by template method
Authors: Sima, M; Enculescu, I; Sima, M; Vasile, E

Published: MAY 2007, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 9, 1554, DOI:

52. Investigation by electrochemical impedance spectroscopy of electrodeposition of zinc-oxide microwires using nitrate bv template method
Authors: Sima, M; Manea, AC; Sima, M; Visan, T

Published: AUG 2007, REVISTA DE CHIMIE, 58, 746, DOI:

53. Growth of ZnO micro and nanowires using the template method
Authors: Sima, M; Enculescu, I; Vasile, E

Published: APR 2006, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 8, 828, DOI:

54. Absorption and photoluminescence properties of Cds : Mn2+: Cu+ nanostructures
Authors: Sima, M; Enculescu, I; Ghiordanescu, V; Mihut, L

Published: AUG 2005, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 7, 1955, DOI:

55. Photoluminescence of manganese- and copper-doped CdS nanowires
Authors: Ghiordanescu, V; Sima, M; Enculescu, I; Grecu, MN; Mihut, L; Secu, M; Neumann, R

Published: FEB 2005, PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 202, 454, DOI: 10.1002/pssa.200406927

56. Manganese and copper doped CdS nanowire arrays preparation
Authors: Sima, M; Enculescu, I; Ioncea, A; Visan, T; Trautmann, C

Published: DEC 2004, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 6, 1198, DOI:

57. The electrodeposition of semiconductor nanowires with thermoelectric properties using "template" method
Authors: Sima, M; Enculescu, I; Visan, T

Published: OCT 2004, REVISTA DE CHIMIE, 55, 746, DOI:

58. Electrochemical deposition of PBSe1-xTex nanorod arrays using ion track etched membranes as template
Authors: Sima, M; Enculescu, I; Visan, T; Spohr, R; Trautmann, C

Published: 2004, MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 418, 755, DOI: 10.1080/15421400490478885

59. Electrodeposition of CdTe nanorods in ion track membranes
Authors: Sima, M; Enculescu, I; Trautmann, C; Neumann, R

Published: MAR 2004, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 6, 125, DOI:

60. Electrosynthesis and properties of some substituted polyanilines in phosphate buffer
Authors: Sima, M; Buda, M; Vasile, E; Visan, T

Published: JAN-FEB 2002, REVUE ROUMAINE DE CHIMIE, 47, 193, DOI:

61. Bi2-xSbxTe3 thick thermoelectric films obtained by electrodeposition from hydrochloric acid solutions
Authors: Nedelcu, M; Sima, M; Manea, AS; Lazarescu, MF; Ghita, RV; Craciunoiu, F; Visan, T

Published: MAR 2002, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 4, 106, DOI:

62. Optical properties of polyaniline/CdS nanocrystals composite film
Authors: Ghiordanescu, V; Sima, M; Nedelcu, M; Giubelan, M

Published: MAR 2001, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 3, 93, DOI:

63. Visible light emission from Cd1-xMnxS nanocrystals
Authors: Ghiordanescu, V; Sima, M; Grecu, MN; Mihut, L

Published: JUN 2001, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 3, 524, DOI:

64. PbSe1-xTex thick thermoelectric films obtained by electrochemical deposition from aqueous solutions
Authors: Nedelcu, M; Sima, M; Visan, T; Pascu, T

Published: 2001, TWENTIETH INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, 330, DOI: 10.1109/ICT.2001.979898

65. Bi2-xSbxTe3 thick thermoelectric films obtained by electrodeposition from hydrochloric acid solutions.
Authors: Nedelcu, M; Sima, M; Visan, T; Pascu, T; Franga, I; Craciunoiu, F

Published: 2001, TWENTIETH INTERNATIONAL CONFERENCE ON THERMOELECTRICS, PROCEEDINGS, 326, DOI: 10.1109/ICT.2001.979897

66. PbSe1-xTex thick thermoelectric films obtained by electrochemical deposition from aqueous solutions
Authors: Nedelcu, M; Sima, M; Stoica, T; Manea, AS; Lazarescu, MF; Visan, T

Published: DEC 2001, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 3, 914, DOI:

67. Magneto-thermoelectric alloys obtained by electrodeposition
Authors: Nedelcu, M; Sima, M; Aldica, G; Apostol, E

Published: 2000, JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2, 720, DOI:

68. Characterization of perchlorate or sulphate doped polyaniline films by electrochemical impedance spectroscopy
Authors: Visan, T; Sima, M; Buda, M; Marin, G

Published: MAY 1999, REVUE ROUMAINE DE CHIMIE, 44, 517, DOI:

69. A comparative study of zinc-polyaniline electrochemical cells having sulfate and chloride electrolytes
Authors: Sima, M; Visan, T; Buda, M

Published: AUG 1995, JOURNAL OF POWER SOURCES, 56, 136, DOI: 10.1016/0378-7753(95)80024-B

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