http://dspace.nbuv.gov.ua:80/handle/123456789/114538 2026-04-20T19:22:19Z http://dspace.nbuv.gov.ua:80/handle/123456789/118409 Сhemiluminescent display Jaguiro, P.; Stsiapanau, A.; Smirnov, A. Investigation of organic liquid phase electroluminescence (traditionally, the so-called “electro-chemiluminescence” or “electrogenerated chemiluminescence”) is of special interest as a competitor for “liquid” and “solid” organic light emitted diodes (OLEDs). From the electrochemical point of view, chemiluminescence is a selfregenerating process providing high brightness light radiation due to recombination of oppositely charged dye radicals. Chemiluminescent displays have a competitive set of parameters: high light efficiency, low power consumption, low driving voltages, fast response time, high spatial resolution, very high optical transmission and wide operation temperature range. No polarizers or alignment layers are required. Samples of chemiluminescent displays, including matrix microdisplays and micromechanically made cells are available; its design and parameters are discussed in details. Theoretical and experimental investigations of thin film DC chemiluminescence phenomena are carried out. On the basis of obtained experimental results, the most important physical processes have been investigated: charge injection into solution and charge transfer by electrohydrodynamic flows. Further prospects of chemiluminescent display devices are discussed. 2010-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/118408 Sponge-like nanostructured silicon for integrated emitters Hubarevich, A.; Jaguiro, P.; Mukha, Y.; Smirnov, A.; Solovjov, Ya. A new approach to nanoporous silicon formation is proposed. Anomalies both in low current densities and low fluorine ion concentrations, which is lead to low uniformity of formed porous silicon, are under consideration. It is shown that at very low current densities and fluorine ion concentration high uniformity, high porosity nanoporous silicon layers can be created. Structural, electrical and optical properties of porous silicon formed in a wide range of current densities, doping levels of silicon substrates and fluorine concentrations are presented. 2010-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/118407 Low voltage FLC for fast active matrix displays Andreev, A.; Andreeva, T.; Kompanets, I. The process of FLC director reorientation in alternating electric field is considered for the case when interaction of FLC molecules with the substrates results in partial unwinding the helix structure and motion of domain walls. The hysteresis-free electrooptical response as fast as 50…70 μs was achieved in the FLC cell of 1.3-μm thickness in the electric field 1 V/μm. This result is very important for the practical use of FLC in fast active matrix displays. 2010-01-01T00:00:00Z http://dspace.nbuv.gov.ua:80/handle/123456789/118406 New dyes for guest-host mode Muravsky, A.; Agabekov, V.; Ariko, N.; Shachab, S.; Tolstik, A.; Malashko, P. New guest-host dyes of red and purple colour suitable for fabrication of ultrathin film polarizer from polymerizable liquid crystals are developed. When the absorption spectrum of dye matches the photopic curve, samples with total film thickness below 50 μm show good visual contrast. 2010-01-01T00:00:00Z