Hyper capacity of MCM-41 supramoleculer structure in the radiofrequency range

• Autorzy: Grygorchak I. I. , Vojtovych S. A. , Stotsko Z. A. , Seredyuk B. A. , Tovstyuk N. K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: of this paper was: 1) to synthesize supramolecular MCM-41 structure (p-cyanogen phenyl ether of n-heptyl benzoic acid - 40%)>> with inserted guested nematic and 2) to study its dielectric properties. Design/methodology/approach: Supramolecular MCM-41 structure has been synthesized by vacuum encapsulated method at room temperature. Dielectric properties have been studied by impedance spectroscopy method in the frequency range 10^-3-10⁶ Hz by “AUTOLAB” complex of “ECO CHEMIE” (Holland), supported by computer programs FRA-2 and GPES. Findings: We have found a tremendous increase of the permittivity and a low value of the tangent of angle of electric losses, as well as the appearance of low frequency inductive response. Practical implications: Super high capacitors of radio range and time-delay lines allow to use them in a direct incorporation into nanoelectronics devices as a new class of super high capacitors and nanostructured time-delay lines. Originality/value: First time we have received: 1) supramolecular structure of the configuration of molecular-lattice nonorganic matrix with a non nematic substrate, 2) significant inductive response in such structures.

Słowa kluczowe

EN

molecular-lattice structures; intercalation; supramolecular compounds; impedance spectroscopy

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2011
• Tom: Vol. 49, nr 2
• Strony: 200--203
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Grygorchak I. I.

• National University „Lvivska Politechnika”, vul. S. Bandery, 79013, Lviv, Ukraine

autor

Vojtovych S. A.

• National University „Lvivska Politechnika”, vul. S. Bandery, 79013, Lviv, Ukraine

autor

Stotsko Z. A.

• Academy of Land Forces named after Hetman Petro Sahaydachniy, vul Gvardiyska 32, 79012, Lviv, Ukraine

autor

Seredyuk B. A.

• Ivan Franko Lviv National University, vul. Dragomanova 50, 79005, Lviv, Ukraine

autor

Tovstyuk N. K.

• National University „Lvivska Politechnika”, vul. S. Bandery, 79013, Lviv, Ukraine

Bibliografia

• [1] J.-M. Lehn, Supramolecular chemistry: Concepts and Perspectives, Wiley-VCH, Weinheim, 1995.
• [2] S.V. Baryshnikov, Ye.V. Stukova, Ye.V. Charnaya et.al., Fizika Tverdogo Tela 48 (2006) 551-557 (in Russian).
• [3] C.T. Peter, Novel coassembly route to Cu-SiO2 MCM-41-like mesoporous materials, American Chemical Society 26 (2004) 2879 -2882.
• [4] Z.B. Stojnov, B.M. Grafov, B.S. Savvova-Stojnova, V.V. Yelkin, Electrochemical impedance, Nauka Publishers, Moscow, 1991.
• [5] A.P. Boltayev, T.N. Burbayev, G.A. Kalyuzhnaya et.al., Microelectronics 24 (1995) 291-294 (in Russian).
• [6] N.A. Poklonski, S.V. Shpakovski, S.B. Gorbachuk, S.B. Lastovski, Fizika i Teknika Poluprovodnikov 40 (2006) 824-828 (in Russian).
• [7] I. Mora-Sero, et.al., Implications of the negative capacitance observed at forward bias in nanocomposite and polycrystalline solar cells, Nano Letters 6 (2006) 640-650.