Abstract
We reveal a new luminescent center with a narrow emission line at 0.681 eV in iron-doped ZnSe at low temperatures. In addition to the main emission line, a satellite peak with a maximum at 0.683 eV and a vibronic band characteristic of intracenter transitions were clearly observed. The spatial distribution of the luminescence signal near 0.681 eV is correlated with the well-known (5T2 → 5E) iron-related luminescence profile, but the detected center was not observed in the samples obtained by iron doping in a zinc atmosphere. Our data indicate the presence of the emitting complex defect composed of a zinc vacancy and an iron ion. According to ab-initio calculations, the emission line at 0.681 eV can be tentatively assigned to an intracenter transition in the spin majority channel of the Fe ion attached to a Zn vacancy. The detected complex can be used as an “optical probe” for intrinsic point defects in crystalline ZnSe:Fe.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
