Title :
Polar species as charge carrier traps in molecular solids
Author :
Sworakowski, Juliusz
Author_Institution :
Inst. of Org. & Phys. Chem., Tech. Univ. of Wroclaw, Poland
Abstract :
The presence of polar impurity species in nonpolar molecular materials may result in the appearance of traps for charge carriers. Calculations of local values of the polarization energy in the vicinity of a dipolar defect carried out on a simple cubic molecular lattice show that traps as deep as several tenths of an electron volt can result in such a way, their depths and cross sections depending on the dipole moments of the guest molecules
Keywords :
dielectric polarisation; electrets; electron traps; hole traps; charge carrier traps; cubic molecular lattice; dipolar defect; dipole moments; electrets; guest molecules; nonpolar molecular materials; polar impurity species; polarization energy; Charge carriers; Crystalline materials; Crystals; Electron traps; Energy states; Impurities; Ionization; Lattices; Polarization; Solids;
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.1991.167180
