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Dr. Mihaela Baibarac

Scientific Researcher first degree

Laboratory of Optical Processes in Nanostructured Materials

Expertize

Raman scattering, surface enhanced Raman scattering, photoluminescence, IR spectroscopy, surface enhanced IR absorption spectroscopy, polymers, composites, carbon nanoparticles, 2D materials

Selected publications

1. Optical cooling of single-walled carbon nanotubes as revealed by their anti-Stokes Raman spectra, I. Baltog, M. Baibarac, S. Lefrant, Journal of Physics Condensed Matter 20 (27), 275215, 2008

2. Vibrational and photoluminescence properties of composites based on zinc oxide and single-walled carbon nanotubes; M. Baibarac, I. Baltog, S. Lefrant, J. Y. Mevellec and M. Husanu; Physica E - Low-dimensional Systems and Nanostructures, 40 (7), 2556, 2008

3. Non-covalent functionalization of carbon nanotubes: Experimental evidence for isolated and bundled tubes, M. Husanu, M. Baibarac, I. Baltog, Physica E - Low-dimensional Systems and Nanostructures, 41(1), 66, 2008

4. Raman and FTIR studies on electro-reduction of the single-walled carbon nanotubes films in the presence of lithium salts; I. Baltog, M. Baibarac, S. Lefrant, J. Y. Mevellec; Diamond and Related Materials, 17 (7-10), 1558, 2008

5. Vibrational and photoluminescence properties of the polystyrene functionalized single-walled carbon nanotubes; M. Baibarac, I. Baltog, S. Lefrant, J. Y. Mevellec, C. Bucur; Diamond and Related Materials, 17 (7-10), 1380, 2008

6. Surface enhanced Raman scattering studies on poly(3,4-ethylenedioxy-thiophene)/SWNTs composites and their applications to rechargeable lithium batteries, I. Baltog, M. Baibarac, S. Lefrant, P. Gomez-Romero, Journal of Nanoscience and Nanotechnology, 9 (10), 6204-6209, 2009

7. Electropolymerization of N-ethylcarbazole on single-walled carbon nanotubes-cyclic voltammetry, Raman and FTIR studies, M. Baibarac, I. Baltog, L. Mihut, J. Y. Mevellec, S. Lefrant, Journal of Nanoscience and Nanotechnology, 9(10), 6195-6203, 2009

8. Quantum wells effects in bulk PbI2 crystals revealed by photoluminescence and Raman spectroscopy, I. Baltog, M. Baibarac, and Lefrant, Journal of Physics Condensed Matter, 21 (2), 025507, 2009

9. Polyaniline/PbI2 composite as charge collector, M. Baibarac, I. Baltog, S. Lefrant, Journal of Solid State Chemistry, 182, 827-835, 2009

10. Raman spectroscopic evidences for the interface interactions in poly(bithiophene)/single-walled carbon nanotubes composites, M. Baibarac, I. Baltog, S. Lefrant, Carbon, 47 (5), 1389-1398, 2009

11. ZnO particles of wurtzite structure as component in ZnO/carbon nanotube composite, M. Baibarac, I. Baltog, T. Velula, I. Pasuk, S.Lefrant, N. Gautier, Journal of Physics: Condenser Matter, 21 (44), 445801,  2009

12. Hybrid organic-inorganic materials based on poly(o-phenylenediamine) and polyoxometallate functionalized carbon nanotubes, M. Baibarac, I. Baltog, I. Smaranda, M. Scocioreanu, S. Lefrant, Journal of Molecular Structure 985 (2-3), 211-218, 2011

13. Polydiphenylamine/carbon nanotube composites for applications in rechargeable lithium batteries, M. Baibarac, I. Baltog, S. Lefrant, P. Gomez-Romero, Materials Science and Engineering B – Advanced Functional Solid State Materials, 176, 110-120, 2011

14. Electrochemical functionalization of SWNTs with poly(3,4-ethylenedioxy thiophene) evidenced by anti-Stokes/Stokes Raman spectroscopy, I. Baltog, M. Baibarac, S. Lefrant, J.Y. Mevellec, Journal of Raman Spectroscopy, 42 (3), 303-312, 2011

15. Sensitive detection of endocrine disrupters using ionic liquid – single walled carbon nanotubes modified screen-printed based biosensors, A.M. Gurban, L. Rotariu, M. Baibarac, I. Baltog, C. Bala, Talanta 85 (4), 2007-2013, 2011

16. One-dimensional composites based on single walled carbon nanotubes and poly(o-phenylenediamine), M. Baibarac, I. Baltog, M. Scocioreanu, B. Ballesteros, J.Y. Mevellec, S. Lefrant, Synthetic Metals 161, 21-22, 23444-2354, 2011

17. Abnormal anti-Stokes Raman emission as single beam coherent anti-Stokes Raman scattering like process in LiNbO3 and CdS powder, M. Baibarac, I. Baltog, S. Lefrant, Journal of Applied Physics 110 (5), 053106, 2011

18. Photoluminescence and Raman evidence for mechanic-chemical interaction of polyaniline-emeraldine based with ZnS in cubic and hexagonal phase, M. Scocioreanu, I. Baltog, M. Baibarac, I. Pasuk, T. Velula, Journal of Solid State Chemistry, 186, 217-223, 2011

19. Raman scattering and anti-Stokes luminescence in poly-paraphenylene vinylene/carbon nanotubes composites, M. Baibarac, F. Massuyeau, J. Wery, I. Baltog, S. Lefrant, Journal of Applied Physics 111, 083109, 2012

20. Abnormal anti-Stokes Raman emission and infrared dichroism studies on poly(p-phenylenevinylene)/single-walled carbon nanotube composites, M. Baibarac, I.Baltog, J. Wery, S. Lefrant, J.Y. Mevellec, Journal of Physics Chemistry C 116, 25537-25545, 2012

21. Casimir effect demonstrated by Raman spectroscopy on trilayer grapheme intercalated into stiff layered structures of surfactant, M. Baibarac, I. Baltog, L. Mihut, I. Pasuk, S. Lefrant, Carbon 51, 134-142, 2013

22. Single-walled carbon nanotubes functionalized with polydiphenylamine as active materials for applications in the supercapacitors field, M. Baibarac, I. Baltog, S. Frunza, A. Magrez, D. Schur, S. Yu. Zaginaichenko, Diamond and Related Materials 32, 72-82, 2013

23. New features in the anti-Stokes and Stokes Raman spectra of single-walled carbon nanotubes that are highly separated into their semiconducting and metallic nanotube components, M. Baibarac, I. Baltog, L. Mihut, S. Lefrant, Journal of Raman Spectroscopy 45, 5, 323-331, 2014

24. Abnormal anti-Stokes Raman scattering and surface-enhanced infrared absorption spectroscopy studies of carbon nanotubes electrochemically functionalized with poly(2, 2’-bithiophene-co-pyrene), M. Baibarac, I. Baltog, M. Smaranda, M. Scocioreanu, J.Y. Mevellec, S. Lefrant, Applied Surface Science 309, 11-21, 2014

25. Spectroelectrochemical properties of the poly[(2,5-bisoctyloxy)-1.4-phenylene vinylene]/single-walled carbon nanotube composite, M. Baibarac, I. Baltog, I. Smaranda, M. Ilie, M. Scocioreanu, J.Y. Mevellec, S. Lefrant, Synthetic Metals 195, 276, 2014

26. Electrochemical grafting of reduced graphene oxide with polydiphenylamine doped with heteropolyanions and its optical properties, I. Smaranda, A.M. Benito, W.K. Maser, I. Baltog, M. Baibarac, J. Phys. Chem. C 118, 25704, 2014

27. Anti-Stokes Raman spectroscopy as a method to identify the metallic and semiconducting configurations of double-walled carbon nanotubes, M. Baibarac, I. Baltog, A. Matea, L. Mihut, S. Lefrant, J. Raman Spectrosc. 46, 32-38, 2015

28. Photochemical processes developed in composite based on highly separated metallic and semiconducting SWCNTs functionalized with polydiphenylamine, M. Baibarac, I. Baltog, I. Smaranda, A. Magrez, Carbon 81, 426, 2015

29. Optical properties of single-walled carbon nanotubes functionalized with poly(2, 2’-bithiophene-co-pyrene) copolymer, I. Smaranda, M. Baibarac, M. Ilie, A. Matea, I. Baltog, S. Lefrant, Current Organic Chemistry 19, 652-661, 2015

30. Raman scattering and photoluminescence studies of ZnO nanowhiskers assembled as flowers in the presence of fullerene, M. Baibarac, I. Baltog, A. Matea, S. Lefrant, Journal of Crystal Growth 419, 158-164, 2015

31. Exciton-phonon interaction in PbI2 revealed by Raman and photoluminescence studies using excitation light overlapping the fundamental absorption edge, M. Baibarac, I. Smaranda, M. Scocioreanu,  R.A. Mitran, M. Enculescu, M. Galateanu, I. Baltog, Materials Research Bulletin 70, 762-772, 2015

32. Anti-Stokes Raman spectroscopy as a method to identify metallic and mixed metallic/semiconducting configurations of multi-walled carbon nanotubes, M. Baibarac, A. Matea, M. Ilie, I. Baltog, A. Magrez, Analytical Methods 7, 625-6230, 2015

33. Polarized Raman spectra of phosphorene in edge and top view measuring configurations, M. Baibarac, A. Nila, I. Baltog, RSC Advances 6, 63, 58003-58009, 2016

34. Influence of single-walled carbon nanotubes enriched in semiconducting and metallic tubes on the vibrational and photoluminescence properties of poly(para-phenylenevinylene), M. Baibarac, I. Baltog, M. Ilie, B. Humbert, S. Lefrant, C. Negrila, Journal of Physical Chemistry C 120, 10, 5694-5705, 2016

35. Exciton-phonon interaction in CdS of different morphological forms manifested as stimulated Raman scattering, M. Baibarac, A. Nila, I. Baltog, Optical Materials Express 6, 6, 1881-1895, 2016

36. Optical properties of single-walled carbon nanotubes functionalized with copolymer poly(3, 4-ethylenedioxy-thiophene-co-pyrene), I. Baltog, M. Baibarac, I. Smaranda, A. Matea, M. Ilie, J.Y. Mevellec, S. Lefrant, Optical Materials 62, 604-611, 2016

37. Optical evidence for chemical interaction of the polyaniline/fullerene composites with N-methyl-2-pyrrolidinone, M. Baibarac, I. Baltog, M. Daescu, S. Lefrant, P. Chirita, Journal of Molecular Structure 1125, 340-349, 2016

38. Infrared dichroism studies and anisotropic photoluminescence properties of poly(para-phenylene vinylene) functionalized reduced graphene oxide, M. Baibarac, M. Ilie, I. Baltog, S. Lefrant, B. Humbert, RSC Advances 7, 12, 6931-6942, 2017

39. The exciton-phonon interaction as stimulated Raman scattering effect supported by the excitonic photoluminescence in BiI3 layered crystal structure, A. Nila, A. Matea, M. Baibarac, I. Baltog, Journal of Luminescence 182, 166-171, 2017

40. Optical properties of single-walled carbon nanotubes highly separated in semiconducting and metallic tubes functionalized with poly(vinylidene fluoride), A. Matea, M. Baibarac, I. Baltog, Journal of Molecular Structure 1130, 38-45, 2017

41. Influence of single-walled carbon nanotubes enriched in semiconducting and metallic tubes on the electropolymerization of tetrabromo ortho-xylene: Insights on the synthesis mechqnism of poly(ortho-phenylenevinylene), M. Baibarac, A. Nila, I. Baltog, S. Lefrant; J. Y. Mevellec, S. Quillard, B. Humbert, European Polymer Journal 88, 109-125, 2017

42. Electrochemical characterization of the poly(2, 2’-bithiophene-co-pyrene) functionalized single-walled carbon nanotubes films and their applications in supercapacitors field, M. Baibarac, I. Baltog, M. Daescu, International Journal of Electrochemical Science 12, 3, 2013-2015, 2017

43. The influence of single-walled carbon nanotubes on optical properties of the poly((2,5-bisoctyloy)-1,4-phenylenevinylene) evidenced by infrared spectroscopy and anti-Stokes photoluminescence, M. Baibarac, I. Smaranda, I. Baltog, S. Lefrant, J. Y. Mevellec, Optical Materials 67, 52-58, 2017

44. Exciton-phonon interaction in the Cs3Bi2I9 cystal structure revealed by Raman spectroscopic studies, A. Nila, M. Baibarac, A. Matea, R. Mitran, I. Baltog, Physica Status Solidi (B) Basic Research, 254, 4, 1552805, 2017

45. Influence of TiO2 and Si on the exciton-phonon interaction in PbI2 qnd CdS semiconductors evidenced by Raman spectroscopy, A. Nila, I. Baltog, D. Dragoman, M. Baibarac, I. Mercioniu, Journal of Physics: Condensed Matter, 29, 365702, 2017

46. The spectrochemical behavior of composites based on poly(para-phenylenevinylene), reduced graphene oxide and pyrene, M. Ilie, M. Baibarac, Optical Materials 72, 140-146, 2017

47. Polyaniline photoluminescence quenching induced by single-walled carbon nanotubes enriched in metallic and semiconducting tubes, M. Baibarac, A. Matea, M. Daescu, I. Mercioniu, S. Quillard, J.Y. Mevellec, S. Lefrant, Scientific Reports 8, 9518, 2018

48. Electrochemical synthesis of composites based on multi-wall carbon nanotubes and polypyrrole doped with phosphomolybdic acid heteropolyanions and their vibrational properties, M. Baibarac, C. Serbschi, M. Stroe, International Journal of  Electrochemical Science 13, 10514-10526, 2018

49. Novel anhydrous solid-state form of Azathioprine: The assessing of crystal structure by powder X-Ray diffraction, Infrared Absorption Spectroscopy and Raman scattering, O.-I. Covaci,  D. Samohvalov, C.-M. Manta, L. Buhalteanu, A. Barbatu,  M. Baibarac, M. Daescu, A. Matea, D. Gherca, Journal of Molecular Structure 1178, 702-710, 2019 

50. Vibrational and photoluminescence properties of polydiphenylamine doped with silicotungstic acid heteropolyanions and their composites with reduced graphene oxide,  M. Baibarac, M. Stroe, S.N. Fejer, Journal of Molecular Structure 1184, 25-35, 2019

51. The influence of UV light on the azathioprine photodegradation: New evidences by photoluminescence, I. Smaranda, A. Nila, C. M. Manta, D. Samohvalov, D. Gherca, M. Baibarac, Results in Physics, 14, 102443, 2019

52. Photoluminescence and structural properties of the nitrogen doped TiO2 and the influence of SiO2 and Ag nanoparticles, A. Nila, M. Baibarac, A. Udrescu, I. Smaranda, A. Mateescu, Gh. Mateescu, P. Mereuta, C.C. Negrila, J. Phys.: Condens. Mater. 31, 375201 (15pp), 2019

53. Photoconductive bhevior of the PPV/RGO composites: insights of charge transfer process, M. Ilie, D. Dragoman, M. Baibarac, Physica Status Solidi B – Baisc Solid State Physics 256, 1800392, 2019

54. Adsorption of 1,4-phenylene diisothiocyanate onto the graphene oxide sheets functionalized with polydiphenylamine in doped state, M. Baibarac, M. Daescu, S.N. Fejer, Scientific Reports 9, 11968, 2019

 55. Optical properties of folic acid in phosphate buffer solutions: the influence of pH and UV irradiation on the UV-VIS absorption spectra and photoluminescence, M. Baibarac, I. Smaranda, A. Nila, C. Serbschi, Scientific Reports 9, 14278, 2019


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