TY  - JOUR
AU  - Alexander V. Udal'tsov
PY  - 2026
DA  - 2026/01/14
TI  - Quasi-Crystal Structure Formation is the Prerequisite for Organic Liquid Micro- and Nano-Crystal Engineering
JO  - Japan Journal of Research
VL  - 7
IS  - 1
AB  - Formation of liquid micro-crystals based on self-organized water-porphyrin assemblies found earlier is
usually accompanied by generation of hole polaron. Hole polaron movement along the wires of hydrogen
bonds through the liquid crystalline structure creates the water network squeezing around the porphyrin
dimers. Possibility of the latter has been investigated by IR spectroscopy with two supports for the
self-organized assemblies deposited on fluorite or germanium plates. The obtained IR spectra exhibit
two different behaviors of the TPP self-organized assemblies. In the case of Ge plate, only protonated
TPP dimers without aqueous cover are found in the corresponding IR spectrum that excludes the
formation of liquid micro-crystals. The observed destruction of the self-organized assemblies was the
reason to study a thin aqueous layer found by IR spectroscopy on Ge plate. The obtained experimental
results and theoretical estimations based on polaronic exciton concept allowed to conclude that the
thin aqueous layer on Ge plate has the quasi-crystal structure also. Bound state energy of polaronic
exciton in this structure has the fewer barriers than the energy gap in germanium that is the cause of the
electron leaving from the quasi-particle. However, liquid crystal engineering requires the quasi-particle
preservation, i.e. the state of electron coupled with the hole for stabilization of hole polaron movement.
SN  - 2690-8077
UR  - https://dx.doi.org/10.33425/2690-8077.1223
DO  - 10.33425/2690-8077.1223