Qasrawı, Atef Fayez HasanQasrawi, AFGasanly, NMDepartment of Electrical & Electronics Engineering2024-07-052024-07-052005270268-12421361-664110.1088/0268-1242/20/5/0212-s2.0-24144432261https://doi.org/10.1088/0268-1242/20/5/021https://hdl.handle.net/20.500.14411/1258Gasanly, Nizami/0000-0002-3199-6686; Qasrawi, Atef Fayez/0000-0001-8193-6975; Gasanly, Nizami/0000-0002-3199-6686The dark electrical conductivity, Hall coefficient, space charge limited current, and illumination and temperature dependences of the photocurrent of TIGaS2 single crystals in the temperature regions of 100-350, 200-350, 200-290 and 100-350 K, respectively, have been measured and analysed. The Hall coefficient measurements revealed the extrinsic type of conduction with conductivity-type conversion from p- to n-type at a critical temperature of 315 K. The temperature dependence of the dark electrical conductivity exhibits activation behaviour with activation energies (0.360 +/- 0.005) eV and (0.240 +/- 0.005) eV at high and low temperatures, respectively. The space charge limited current analysis has shown that the energy level of (0.240 +/- 0.005) eV is a trapping state with trap density of (2.2-3.9) x 10(12) cm(-3). The data analysis of the photocurrent-temperature dependence has revealed two photoconductivity activation energies of (0.660 +/- 0.005) eV and (0.360 +/- 0.005) eV in the temperature regions of 290-350 K and 220-280 K, respectively. The illumination dependence of photoconductivity is found to exhibit linear and supralinear recombination mechanisms above and below 290 K, respectively.eninfo:eu-repo/semantics/closedAccess[No Keyword Available]ArticleQ3205446452WOS:000229797900024