Premium
Optical Properties of Zn 2 CuGaSe 4 and Zn 2 CuGaSe 4 :Co 2+ Single Crystals
Author(s) -
Choe SungHyu,
Yu KiSu,
Kim ChangDae,
Kim WhaTek
Publication year - 1991
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221680131
Subject(s) - impurity , single crystal , crystallography , absorption (acoustics) , ion , materials science , chemistry , analytical chemistry (journal) , condensed matter physics , physics , organic chemistry , chromatography , composite material
Zn 2 CuGaSe 4 and Zn 2 CuGaSe 4 :Co 2+ single crystals are grown by the slow cooling method. The optical energy gaps of these single crystals are found to be 1.510 and 1.490 c V at 298 K, respectively. In the Zn 2 CuGaSe 4 :Co 2+ single crystals, the impurity optical absorption peaks are attributed to the electronic transitions between the electron energy levels of Co 2+ ions sited at the T d symmetry of the Zn 2 CuGaSe 4 host lattice. The crystal field, Racah, and spin—orbit coupling parameters are given as D q = 425.5, B = 404, and λ = −348 cm −1 , respectively.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom