Donor bound excitons involving a hole from the B valence band in ZnO: Time resolved and magneto-photoluminescence studies
2011 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 99, no 9, 091909- p.Article in journal (Refereed) Published
Time-resolved and magneto-photoluminescence (PL) studies are performed for the so-called I(6)(B) and I(7)(B) excitonic transitions, previously attributed to neutral donor bound excitons involving a hole from the B valence band (VB), D(0)X(B). It is shown that PL decays of these emissions at 2 K are faster than that of their I(6) and I(7) counterparts involving an A VB hole, which is interpreted as being due to energy relaxation of the hole assisted by acoustic phonons. From the magneto-PL measurements, values of effective Lande g factors for conduction electrons and B VB holes are determined as g(e) = 1.91, g(h)(parallel to) = 1.79, and g(h)(perpendicular to) = 0, respectively.
Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2011. Vol. 99, no 9, 091909- p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-70746DOI: 10.1063/1.3628332ISI: 000294489300024OAI: oai:DiVA.org:liu-70746DiVA: diva2:441464