Activities

Staff

Publications

Projects

    

RESEARCH ACTIVITIES

    

The Laboratory of Multifunction Materials was established in 2017 as a product of the merger between the Laboratory of Superconductivity and Cryoelectronics and the Laboratory of Physical Problems in Ion Technology. The Laboratory of Superconductivity and Cryoelectronics has been in operation since 1989; its activities include synthesis and research of high temperature superconductive (HTS), ferromagnetic (FM), ferroelectric (FE) or multiferroic (MF) films, coatings for biomedical applications, as well as layered HTS/FM structures. In 1963 the Laboratory of Physical Problems in Ion Technology was established at the Institute for Electronics in the Bulgarian Academy of Sciences (IE-BAN) with the aim of synthesis and modification of metal, semiconductor, dielectric, and superconducting materials (primarily as thin layers).

The research in the Laboratory of Multifunction Materials focuses on the synthesis, functionalization, and characterization of:

• Carbon allotropes; such as thin layers of amorphous a-C, ta-C, a-C:H, ta-C:H, microcrystalline and nanocrystalline diamond-like carbon (DLC), pyrolytic carbon, graphene and graphene-like phases, and nanodispersed graphene and graphene-like allotropes (including graphene oxide)
• Different structures of complex HTS/FM oxides (e.g. Y1Ba₂Cu₃O_7-x (YBCO)/ La_0.7Ca_0.3MnO₃ (LCMO), YBCO/ La_0.7Sr_0.3MnO₃ (LSMO), YBCO/ Fe_(2-x)O_(4-y) )
• Biomimetic optimization of various thin layers of tantalum (Ta), tantalum nitride (TaN), tantalum oxide (Ta₂O₅), as well as thin composite coatings based on nanocrystalline calcium phosphate hydroxyapatite (Ca₁₀(PO₄)₆(OH)₂)
• Materials from the so-called class topological insulators - mainly Ag₂Te, both as bulk (single crystals) as well as thin films
• Production of ultra-high vacuum (UHV) without residual hydrocarbons by an ion pump, where the speed of pumping is independent of pressure (as in the case of cold discharge pumps)

The Laboratory of Multifunction Materials has equipment for:

• Direct current Magnetron Sputtering (dcMS)
• Radiofrequency Magnetron Sputtering (rfMS)
• Decomposition of a-C:H and ta-C:H layers through plasma-assisted chemical vapor deposition (PACVD)
• Decomposition of layers of nanocrystalline DLC and pyrolytic carbon, graphene and graphine-like allotropes, as well as nanodispersed graphene and graphene-like allotropes (including graphene oxide) through thermally assisted chemical vapor deposition (TACVD)
• Modification of the surface of thin layers with ion bombardment (with Ar, N₂, O₂, H₂), DC or AC (mid frequency) plasma

Participation in scientific projects

1. Project DN 18/9 of 11.12.2017 "New Methods for the Production of Graphene and Graphene Oxides by Modification of Amorphous and Nanodispersed Carbon Allotropes"(2017-2019) granted by FNI. Coordinator: Assoc.Prof. T.M.Milenov.
2. Project 18/51 "Production and characterization of layers of AlN for Instruments on the basis of Surface Acoustic Waves" (2017-2019) granted by FNI. Coordinator - Assoc. Prof. M.Beshkova - IE BAS, Prof.T.Nurgaliev - participant.
3. Project between IE BAS and NANU-NNTS, HFTI (2017-2018) "Development of two-layer Nanocomposite layers with Osteoinductive properties with applications in biomedicine and tissue engineering". Project awarded in the framework of Interacademic Agreement Bulgaria - Ukraine.
4. Project between IE BAS and NANU-NNTS, HFTI (2015-2016) "Development of technology for the surface modification of materials with nanostructured coatings with improved electrophysical parameters for biomedicine". Project awarded in the framework of Interacademic Agreement Bulgaria - Ukraine.
5. Project between IE-BAS and Institute for Electrical Engineering, Slovak Academy of Sciences (SAN), Bratislava (2015- 2017): "Perovskite heterostructures of nanometric thickness for sensors and spintronics", Head: Prof. T. Nourgalev. Project awarded in the framework of Interacademic Agreement Bulgaria - Slovakia.
6. Academic projects granted by the Bulgarian Academy of Sciences:
   • "Application of the ionic shafts in the synthesis and analysis of novel materials"
   • "Deposition, modification and investigation of thin films of materials for electronics by ion methods"
7. COST MP 1204 ACTION: "TERA-MIR Radiation: Materials, Generation, Detection and Applications" - (2012-2016)

    

    

    

    

	Name:	Phone: (+359 2) 979 XXXX	E-mail: ....@ie.bas.bg
HEAD:	Dr. Teodor Milenov, Assoc. Prof.	5921	tmilenov
RESEARCH SCIENTISTS:	Dr.Sci. Timerfeyaz Nurgaliev,	5870	timur
	Dr. Nokilay Donkov,	5862	donkov
	Dr. Stefan Kolev, Assist. Prof.	5897	skkolev
	Dr. Ivaylo Balchev, Assist. Prof.	5897	ivobalchev
	Ph.D. student Dimitar Dimov		dadimov
	Chemist Desislava Karaivanova		dkaraivanova
CVD Consulting  & Engineering:	Dr. L. Zambov (USA)

    

    

    

PUBLICATIONS

During year:
   

    

    

    

ONGOING RESEARCH PROJECTS:

    

European Research Projects

Project DN 18/9 11.12.2017

"NEW METHODS FOR OBTAINING GRAPHEN AND GRAPHEN−OXIDE BY MODIFICATION OF AMORPHIC AND NANO−DISPERSED CARBON STEEL" (2017-2019) financed by the National Research Foundation.

Coordinator: Assoc.Prof. T.I.Milenov, Ph.D.

Base organization: Institute of Electronics, BAS.

   

Project KP_06_EN

Study of the possibilities for deposition of two- or multi- layered structures
of type: graphene- buffer layer- single crystalline Si substrate (2021-2025).

Coordinator: Assoc.Prof. T.I.Milenov, Ph.D.

Base organization: Institute of Electronics, BAS.

   

Project KP-06-COST/10 - 07.08.2023

Ab initio simulations of the interaction of single carbon atoms and small hydrocarbon molecules in space
2023- 2025 Budget (total) 50 000 BGN

Financed by the Bulgarian Nationa Scientific Research Fund in the framework of the COST action CA21126 - Carbon molecular nanostructures in space (NanoSpace) https://www.cost.eu/actions/CA21126/

Coordinator of the project: Assoc. Prof. Dr. Teodor Milenov

   

COST MP 1204 ACTION: "TERA-MIR Radiation: Materials, Generation, Detection and Applications".

    

Financed by BAS

• "Deposition, modification and investigation of thin films of materials for electronics by ion methods".