Electrical properties of microcrystalline Sc3N@C80 fullerene

Autor:	Masamichi Sakaino, Yong Sun, Kenta Kirimoto, Tsuyoshi Takase
Rok vydání:	2012
Předmět:	Phase transition Microcrystalline Fullerene Materials science Band gap Electric field Contact resistance Analytical chemistry General Materials Science Biasing General Chemistry Conductivity
Zdroj:	Applied Physics A. 112:927-931
ISSN:	1432-0630 0947-8396
DOI:	10.1007/s00339-012-7449-6
Popis:	The electrical properties of microcrystalline Sc3N@C80 fullerene with fcc structure are studied by measuring both d.c. conductivity temperature dependence and a.c. impedance. Below 450 K the Sc3N@C80 sample has an energy band gap of 1.71 eV, which does not depend on the strength of the applied electric field. But when the temperature is above 450 K, a phase transition which results in a small band gap of 1.22 eV occurs under electric field strengths larger than 1 kV/cm. We also found from Cole–Cole plots of a.c. impedance that the contact resistance at the Au/Sc3N@C80 interface is less than that at the Au/C60 interface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6b3ebad2940bb1008d51a1ac25a208ac https://doi.org/10.1007/s00339-012-7449-6 Zobrazit plný text záznamu Full text from SpringerLink