Fabrication and study of the organic-inorganic semiconductor diodes formed on n-Si
Date
2011Author
Vengalis, Bonifacas
Šliužienė, Kristina
Lisauskas, Vaclovas
Grigaliūnaitė-Vonsevičienė, Gražina
Butkutė, Rita
Lygaitis, Ramūnas
Gražulevičius, Juozas Vidas
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We report fabrication and electrical characterization of the organic inorganic semiconductor diode structures formed by evaporating thin films of three novel low molecular mass organic compounds on n-type Si substrates. The organic compounds containing carbazole and triphenylamine structural units, namely: 9,9'-bis(4-butylphenyl)-3,3'-bicarbazolyl (BPBC), 4-(1H-perimidin-2-yl)-N,N-diphenylbenzenamine (PER) and 9,9'-diethyl-3,3'-bicarbazolyl (EBC) have been synthesized. The current voltage characteristics of the Au/(BPBC, EBC, PER)/n-Si diode structures measured at T = 295 K revealed rectifying behavior with a potential barrier height values of 0.71 eV, 0.73 eV, 0.76 eV, respectively.