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Invisible "traps" for the Sun: Fedir Ivashchyshyn, scientist of Institute of Applied Mathematics and Fundamental Science, works in the alternative energy field

One of the modern science most significant task is a developing of alternative energy sources. At Lviv Polytechnic there is work going on towards the creation of self-contained energy sources of nanometric sizes. This research is conducted at Department of Engineering, Materials Science and Applied Physics (EMSAP) of Institute of Applied Mathematics and Fundamental Sciences (IMFS), especially at Laboratory of Nanophysics and Molecular Energy. By the way, couple of years ago one project of EMSAP was granted as the best invention in Lviv region. In this area works also a research scientist of the department Fedir Ivashchyshyn, who has won a Polytechnic’s grant in 2014.

Today’s Polytechnic researcher back in his time had graduated from Vasyl Stefanyk Precarpathian National University with a degree in Radiophysics and Electronics. But his postgraduates studies he continued in Lviv. He worked on Ph.D. thesis - which he passed in 2012 — with academic advising of Ivan
Hryhorchak, head of EMSAP. The young scientist manages a development of functionally hybrydous electrotype condensing elements. He explains:

— My Ph.D. thesis was based on the usage of an intercalation, i.e. a penetration of so-called ‘guest’-component to the "body" of "host"-materials. This method of intercalation is widely known, and according to the research results, might be successfully implemented for the construction of complex hierarchical structures. With such a method we can achieve some electro-physical elements characteristics and structures as far as at the nanoscale. I mean, for instance, the increase of such effects as magneto- and photosensitivity, also magneto- and photocapacitance. For the intercalation we use organic substances with many characteristics, but they have one drawback: they are unstable in the environment, i.e. they cease to exist really fast. So, my task was to intercalate between nanolayers of GaSe, InSe transistors different organic substances’ molecules conformably to desirable effect. Properly speaking, I had to place organic molecule into inorganic matrix, firstly, to strengthten its characteristics and, secondly, to get some interesting effects I’ve already mentioned. In the result, we’ve got inorganic and organic nanohybridized structures - where transistor’s photosensitive nanolevels alternate with organic ones — and also electrochemical photocondensative systems. We regard to them as to the base for nanophotoelectronical and solar energy devices, hence they create new mechanisms for energy generation and transformation.

The researcher managed to create photocondenser - an electrochemical system able to transform and accumulate solar system in one device. It was achieved due to the usage of nanosmall TiO2 and its inner photosensitivity — the increase of photosensibility. This allows us to give up on the outer photosensibility, where expensive dyers are usually used. Mr. Ivashchyshyn was patented for this development. Besides that we succeeded in a great dielectric transmittivity in N-scale structures — the loss of energy in the condenser depends on the loss in dielectrics — and it might be used in the creation of supracapacious radiofrequent condensers. These sciential achievements on invisible for an eye nanolevel, as the young researcher says, allow us to better considerably functional abilities of modern power system. In the solar energy area it may cheapen the process of transformation solar energy into an electrical one.

At the moment Fedir Ivashchyshyn as a senior researcher together with Roman Shvets, postgraduate of EMSAP, works on the development of the quantum battery, quantum condenser which will use organigs with magnetic enclosure. The main purpose for scientists is a supercondenser - a device, which will be able to use and accumulate solar energy on quantum level and also, if needed, to enable its own chemical energy. The ‘solar’ condenser, which is being developed, is in fact, the first step in this direction. The consistent work will definitely lead to a good result, the young scientist assures:

— The best motive power in science is, in my opinion, the desire to work and, of course, the work itself. Not always everything turns out well, but if you work methodically, make some efforts, than the result will necessarily come. I believe, every result is indeed a good one. Sometimes you wish for one particular outcome, but actually get totally different, but also important and that might be implemented. Finally, every situation gives us an opportunity to make some inferences; we just need to look closer from all sides, to analyze. And if something is wrong, then we should find our mistake.