Magneto-optical properties and recombination dynamics of isoelectronic bound excitons in ZnO
2014 (English)In: AIP Conference Proceedings, ISSN 0094-243X, E-ISSN 1551-7616, Vol. 1583, 186- p.Article in journal (Refereed) Published
Magneto-optical and time-resolved photoluminescence (PL) spectroscopies are employed to evaluate electronic structure of a bound exciton (BX) responsible for the 3.364 eV line (labeled as I * 1 ) in bulk ZnO. From time-resolved PL spectroscopy, I * 1 is concluded to originate from the exciton ground state. Based on performed magneto-PL studies, the g-factors of the involved electron and hole are determined as being ge = 1.98 and g ∥ h (g ⊥ h ) = 1.2(1.62) , respectively. These values are nearly identical to the reported g-factors for the I* line in ZnO (Phys. Rev. B 86, 235205 (2012)), which proves that I * 1 should have a similar origin as I* and should arise from an exciton bound to an isoelectronic center with a hole-attractive potential.
Place, publisher, year, edition, pages
2014. Vol. 1583, 186- p.
Condensed Matter Physics
IdentifiersURN: urn:nbn:se:liu:diva-93892DOI: 10.1063/1.4865632ISI: 000342321600040OAI: oai:DiVA.org:liu-93892DiVA: diva2:627395
27th Int. Conf. on Defects in Semiconductors, Bologna, Italy, July 21-26, 2013.