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Donor bound excitons involving a hole from the B valence band in ZnO: Time resolved and magneto-photoluminescence studies
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- Chen, Shula (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska fakulteten
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- Chen, Weimin (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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- Buyanova, Irina (author)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
- (creator_code:org_t)
- American Institute of Physics (AIP), 2011
- 2011
- English.
- In: Applied Physics Letters. - : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 99:9, s. 091909-
- Journal article (peer-reviewed)
Abstract
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- 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.
Keyword
- TECHNOLOGY
- TEKNIKVETENSKAP
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