Title :
Charge carrier transport mechanisms in Langmuir-Blodgett films of vanadyl phthalocyanine
Author :
Silinsh, Edgar ; Muzikante, Inta ; Taure, Lidiya ; Shlihta, Gunta
Author_Institution :
Inst. of Phys. Ener., Latvian Acad. of Sci., Riga, Latvia
Abstract :
Possible charge-of-carrier-transport mechanisms in Langmuir-Blodgett (LB) films of vanadyl phthalocyanine (VOPhc) are discussed. Electric field and temperature dependent charge carrier transport characteristics are presented. The conditions of creation of hot charge carriers are discussed, based on experimental and computer-simulated transport studies. Results of inelastic electron tunneling spectroscopy of VOPhc monolayers are presented, and the main electron scattering mechanisms are discussed. The energy diagram of conduction and local trapping states in VOPhc LB multilayers is also presented, based on SCLC (space-charge-limited current), photoconductivity, and photoemission measurements
Keywords :
Langmuir-Blodgett films; dielectric thin films; electrets; electron traps; electronic conduction in insulating thin films; hole traps; hot carriers; monolayers; organic compounds; photoconductivity; photoemission; space-charge-limited conduction; tunnelling spectra; IETS; Langmuir-Blodgett films; VOPhc monolayers; carrier transport mechanisms; conduction; electret; electric field dependence; electron scattering mechanisms; energy diagram; hot charge carriers; inelastic electron tunneling spectroscopy; local trapping states; photoconductivity; photoemission; space-charge-limited current; temperature dependence; vanadyl phthalocyanine; Charge carriers; Current measurement; Electron traps; Nonhomogeneous media; Photoconductivity; Photoelectricity; Scattering; Spectroscopy; Temperature dependence; Tunneling;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167213
