Trapping centers in undoped GaS layered single crystals

Download
2003-08-01
Hasanlı, Nızamı
Yuksek, NS
Salihoglu, O
Nominally undoped p-GaS layered single crystals were grown using the Bridgman technique. Thermally stimulated current measurements in the temperature range 10-300 K were performed at a heating rate of 0.10 K/s. The analysis of the data revealed six trap levels at 0.05, 0.06, 0.12, 0.63, 0.71, and 0.75 eV. The calculations for these traps yielded 1.2x10(-21), 2.9x10(-23), 2.4x10(-21), 8.0x10(-9), 1.9x10(-9) and 4.3x10(-10) cm(2) for the capture cross sections and 1.6x10(13), 5.0x10(12), 7.3x10(12), 1.2x10(14), 8.9x10(13) and 2.6x10(13) cm(-3) for the concentrations, respectively.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING

Suggestions

Trapping centers and their distribution in Tl2Ga2Se3S layered single crystals
IŞIK, MEHMET; Hasanlı, Nızamı (Elsevier BV, 2009-06-01)
Thermally stimulated current (TSC) measurements with current flowing perpendicular to the layers were carried out on Tl2Ga2Se3S layered single crystals in the temperature range of 10-260K. The experimental data were analyzed by using different methods, such as curve fitting, initial rise and isothermal decay methods. The analysis revealed that there were three trapping centers with activation energies of 12, 76 and 177 meV. It was concluded that retrapping in these centers was negligible, which was confirme...
Thermally stimulated current observation of trapping centers in undoped GaSe layered single crystals
Hasanlı, Nızamı; Salihoglu, O (Wiley, 2001-01-01)
Undoped p-GaSe layered single crystals wet e grown using Bridgman technique. Thermally stimulated current measurements in the temperature range of 10-300 K were performed at a heating rate of 0.18 K/s. The analysis of the data revealed three trap levels at 0.02. 0.10 and 0.26 eV. The calculation for these traps yielded 8.8 x 10(-27), 1.9 x 10(-25). and 3.2 x 10(-21) cm(2) for capture cross sections and 3.2 x 10(14) 1.1 x 10(16) and 1.2 x 10(16) cm(-3) for the concentrations, respectively.
Trapping parameters of repulsive centers in SbSI single crystals
Ozdemir, S; Firat, T; Mamedov, AM (Elsevier BV, 2004-06-08)
Charge trapping centers in antimony sulphide iodide (SbSI) single crystals have been investigated by the use of thermally stimulated current (TSC) technique. The TSC spectrum consists of only one apparent peak which is found to be associated with a single trapping level. Those traps are experimentally found to obey the monomolecular kinetics. The trapping parameters as the energy depth, temperature dependent frequency factor and capture cross section together with the concentrations of the corresponding dis...
Thermally stimulated current measurements in undoped Ga3InSe4 single crystals
IŞIK, MEHMET; Hasanlı, Nızamı (Elsevier BV, 2011-06-01)
The trap levels in nominally undoped Ga3InSe4 crystals were investigated in the temperature range of 10-300 K using the thermally stimulated currents technique. The study of trap levels was accomplished by the measurements of current flowing along the c-axis of the crystal. During the experiments we utilized a constant heating rate of 0.8 K/s. Experimental evidence is found for one hole trapping center in the crystal with activation energy of 62 meV. The analysis of the experimental TSC curve gave reasonabl...
Shallow trapping center parameters in as-grown AgIn5S8 crystals determined by thermally stimulated current measurements
YILDIRIM, TACETTİN; Hasanlı, Nızamı (Wiley, 2009-12-01)
Thermally stimulated current measurements were carried out on as-grown AgIn5S8 single crystals. The investigations were performed in temperatures ranging from 10 to 70 K with heating rate of 0.2 K/s. The analysis of the data revealed the electron trap level located at 5 meV. The activation energies of the traps have been determined using various methods of analysis, and they agree with each other. The calculation for these traps yielded 2.2 x 10(-25) cm(2) for capture cross section and 6.1 x 10(12) cm(-3) f...
Citation Formats
N. Hasanlı, N. Yuksek, and O. Salihoglu, “Trapping centers in undoped GaS layered single crystals,” APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, pp. 603–606, 2003, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34903.