TY - JOUR
T1 - Preparation and characterization of molecular-material thin films containing diaqua tetrabenzo (b,f,j,n) {1,5,9,13} tetraazacyclohexadecine copper (II) and nickel (II) bisanthraflavates
AU - Sánchez-Vergara, M. E.
AU - Ortiz, A.
AU - Álvarez-Toledano, Cecilio
AU - Alvarez, J. R.
PY - 2005/9/22
Y1 - 2005/9/22
N2 - Semiconducting molecular-material thin films of tetrabenzo (b,f,j,n) {1,5,9,13} tetraazacyclohexadecine copper (II) and nickel (II) bisanthraflavates have been prepared by using vacuum thermal evaporation on corning glass substrates and crystalline silicon wafers. The obtained films were characterized by infrared spectroscopy (FTIR), atomic force microscopy (AFM), ultraviolet-visible (UV-Vis) spectroscopy and ellipsometry. The values of the electric current as a function of temperature are always higher for the complexes with nickel than for those with copper. Charge transfer for these complexes shows preferential conducting paths that can be attributed to the hydrogen bonds of the anthraflavate anions. Electric conductivity values found for thin films are higher than for pellets made of the same molecular materials.
AB - Semiconducting molecular-material thin films of tetrabenzo (b,f,j,n) {1,5,9,13} tetraazacyclohexadecine copper (II) and nickel (II) bisanthraflavates have been prepared by using vacuum thermal evaporation on corning glass substrates and crystalline silicon wafers. The obtained films were characterized by infrared spectroscopy (FTIR), atomic force microscopy (AFM), ultraviolet-visible (UV-Vis) spectroscopy and ellipsometry. The values of the electric current as a function of temperature are always higher for the complexes with nickel than for those with copper. Charge transfer for these complexes shows preferential conducting paths that can be attributed to the hydrogen bonds of the anthraflavate anions. Electric conductivity values found for thin films are higher than for pellets made of the same molecular materials.
KW - Anisotropy
KW - Conductivity
KW - Electrical properties and measurements
KW - Organic semiconductors
UR - http://www.scopus.com/inward/record.url?scp=23044449953&partnerID=8YFLogxK
U2 - 10.1016/j.tsf.2005.04.087
DO - 10.1016/j.tsf.2005.04.087
M3 - Artículo
AN - SCOPUS:23044449953
SN - 0040-6090
VL - 488
SP - 34
EP - 39
JO - Thin Solid Films
JF - Thin Solid Films
IS - 1-2
ER -