Optical absorption and photoluminescence of vanadium in n-type GaAs

Optical Properties of Vanadium Ions in Zinc Sulphide

“…4), the prevailing features are a structured band near 10 000 cm -1 , preceded by a line at 8500 cm -1 , another band near 14 000 cm -1 and a weak broad high-energy band characterised by a leading edge at approximately 20 500 cm -1 . The dominating double-peaked band near 10 000 cm -1 is found with a surprisingly similar contour in the lowtemperature absorption [20,21] and excitation spectrum of GaAs:V 3+ [22,23]. Other V 3+ -related spectra bear strong resemblance to this shape as well, e.g.…”

“…The splitting of about 600 cm -1 in the 3 T X (P) <-3 A 2 (F) main transition indicates a Jahn-Teller splitting of the excited state which is also apparent in the GaAs: V 3 + excitation spectrum (cf. [23]) and has earlier been related to this effect [20], Several procedures have been tried to fit the freeion data for V 2 + (d 3 ) [42]. The best approximation is obtained for B = 787 cm -1 , C = 2740 cm -1 and a = 48 cm -1 .…”

Zeeman spectroscopy of luminescence from vanadium doped gallium arsenide

“…Vanadium in GaP, GaAs, or InP gives rise to a pair of zero-phonon optical lines in luminescence spectroscopy. They are denoted A and B and their energies, in meV, are [1][2][3][4][5][6] (A = 790.9; B = 792.9), (A = 738.7; B = 740.0) and (A = 705.4; B = 707.0) respectively. A is a cold line and B a hot line.…”

“…The samples used in this work were cut from the same ingot which Mircea et al [3] used in their optical spectroscopy experiment.…”