The CdIn_(2)Te_(4) single crystals were grown by modified vertical Bridgman method. The CdIn_(2)Te_(4) single crystals were evaluated to be tetragonal by the powder method. The CdIn_(2)Te_(4) single crystals were confirmed to be grown with planes of (...
The CdIn_(2)Te_(4) single crystals were grown by modified vertical Bridgman method. The CdIn_(2)Te_(4) single crystals were evaluated to be tetragonal by the powder method. The CdIn_(2)Te_(4) single crystals were confirmed to be grown with planes of (112) faced with the length of the ingots by the Laue reflection method.
From the Hall effects by van der Pauw method, the as-grown CdIn_(2)Te_(4) single crystals were found to be an p-type semiconductors and its polarites had found to have no ralation with c axis. The values of carrier concentration n, Hall coefficient R_(H), electric conductivity δ and mobility μ for the sample perpendicular and parallel to c axis were 8.75 × l-^(23) electrons/m^(3), 7.14 × 10^(-5)m^(3)/C, 176.40 Ω^(-1)m^(-1), 3.41 × 10^(-2)m^(2)/V·s, and 8.61 × 10^(23) electrons/m^(3), 7.26 × 10^(-5)m^(3)/C, 333.38 Ω^(-1)m^(-1). 2.42 × 10^(-2)m^(2)/V·s, respectively .
From the photocurrent spectrum by illumination of light polarized to the c axis of the CdIn_(2)Te_(4) single crystals, we have found that values of spin orbit coupling □s.o. and crystal field splitting □cr. were about 0.38±0.06 eV and 0.24±0.03 eV, respectively.
Phonon energy resulted by comparing the spectrum of photo- current with that of photoluminescence is found to be 14 meV on the sample perpendicular to c axis and 15 meV on the sample parallel to c axis.