G
Georgi B. Hadjichristov
Researcher at Georgi Nadjakov Institute of Solid State Physics
Publications - 100
Citations - 632
Georgi B. Hadjichristov is an academic researcher from Georgi Nadjakov Institute of Solid State Physics. The author has contributed to research in topics: Liquid crystal & Ion implantation. The author has an hindex of 12, co-authored 93 publications receiving 529 citations. Previous affiliations of Georgi B. Hadjichristov include Bulgarian Academy of Sciences.
Papers
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Journal ArticleDOI
Structural and dielectric properties of NaIO4 – Complexed PEO/PVP blended solid polymer electrolytes
Hari Krishna Koduru,L. Marino,F. Scarpelli,Alexander G. Petrov,Yordan G. Marinov,Georgi B. Hadjichristov,M.T. Iliev,Nicola Scaramuzza +7 more
TL;DR: In this paper, the effect of salt complexation on structural properties of pure blend (PEO/PVP) electrolyte was investigated by X-ray diffraction (XRD), Raman spectroscopy and Scanning electron microscopic (SEM) studies.
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Reflectivity modification of polymethylmethacrylate by silicon ion implantation
TL;DR: In this paper, the effect of silicon ion implantation on the optical reflection of bulk polymethylmethacrylate (PMMA) was examined in the visible and near UV, and it was shown that a significant enhancement of the reflectivity from Si + -implanted PMMA occurs at appropriate implantation energy and fluence.
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Silicon ion implanted PMMA for soft electronics
Georgi B. Hadjichristov,V.K. Gueorguiev,Tzvetan E. Ivanov,Yordan G. Marinov,V. G. Ivanov,Eric Faulques +5 more
TL;DR: In this article, the electrical conductivity and field-effect transconductance of polymethylmethacrylate (PMMA) subjected to implantation with 50 keV silicon ions at doses in the range from 10 14 to 10 17 ions/cm 2 were examined.
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Characterization of PEO/PVP/GO nanocomposite solid polymer electrolyte membranes: microstructural, thermo-mechanical, and conductivity properties
Hari Krishna Koduru,F. Scarpelli,Yordan G. Marinov,Georgi B. Hadjichristov,Peter M. Rafailov,I. K. Miloushev,Alexander G. Petrov,N. Godbert,L. Bruno,Nicola Scaramuzza +9 more
TL;DR: In this article, a solution casting-based nanocomposite electrolyte membrane was characterized by SEM, TEM, XRD, and Raman vibrational spectroscopic techniques to confirm the dispersion of GO nano-sheets and to understand the synergistic properties of GO/polymer interactions as a function of Go nano-sheet concentration.
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Orientation of sp2 carbon nanoclusters in ion‐implanted polymethylmethacrylate as revealed by polarized Raman spectroscopy
TL;DR: In this article, the polarized Raman spectra of polymethylmethacrylate (PMMA) implanted with 50-keV Si+ ions at fluences in the range 3.2 × 1014-1.0 × 1017 ions/cm2 and for different visible excitation wavelengths were investigated.