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Home Material Sciences Development Of The Filmforming Materials

Development Of The Filmforming Materials


The creation of novel filmforming materials is carried out on the basis of the concept, developed by us, of adjustable stabilisation of valence state of metal due to donor-acceptor interaction between components – binary compounds. Valence state is stabilised both during synthesis of the filmforming material, and during its thermal evaporation in deep vacuum. It makes possible receiving coatings with a high degree of perfection – both chemical, and structural. In turn, it positively reveals both in optical (refractive index, factors of scattering and absorption, width of range of an optical transparency) and operational (mechanical and beam durability, stability to a damp atmosphere etc.) properties of coatings received from the materials.

Filmforming materials on the basis of complex fluorides of s-metals and lanthanides, in particular systems MgF2–LnF3 (Ln – Nd, Lu) and LnF3–Ln'F3 (Ln – Eu, Yb, Ln' – Ce, Tb), for interference optical coatings with a low refractive index are developed. The materials are obtained through the fluoridation of metal oxides with the further melting in an inert atmosphere. The essential increase in reliability in operation and simplification of technology of modelling of interference coatings for laser optics, spectral divisors, optical filters and other products is the result of use of these materials.

Innovative Aspect and Main Advantages

Proposed film-forming materials as to their optical losses (less than 0.01 %) in the coatings are competitive with the widely used ones, namely thorium fluoride (ThF4). However, proposed materials are higher compared to ThF4 in mechanical durability (0 group), as well as they have no radioactivity.

Areas of Application

Filmforming materials have wide applications in several industrial sectors:
– optical industry;
– optoelectronics.
New more effective materials were developed for interference optics of technological and eximer lasers used in:
– mechanical engineering;
– lithography;
– medicine.

Fig. 1 Experimental samples of film forming material on the
base of MgF2 – LuF3 composite

Fig. 2 Fig. 2. Experimental specimens of the optical elements for the
IR spectrum divisor with the multilayered coatings on the base
of MgF2 – LuF3 and ZnS – GdS composites (CDO "Arsenal")

Fig. 3 Fig. 3. Experimental specimens of the optical elements for the
IR narrow%band filter with the multilayered coatings on the
base of MgF2 – LuF3 and ZnS – GdS composites (CDO

Stage of Development

– Prototype is available for testing.
– License agreements and cooperation for further development are sought.

Contact Details

Viktor Zinchenko
A.V. Bogatsky Physico-Chemical Institute of the NAS of Ukraine
86 Lustdorfska Doroga, 65080 Odessa, Ukraine
Tel.: (380)482.66.51.55
Fax: (380)482.65.20.12
E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

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