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Dynamics of donor b...
Dynamics of donor bound excitons in ZnO
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- Chen, Shula (författare)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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- Chen, Weimin (författare)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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- Buyanova, Irina (författare)
- Linköpings universitet,Funktionella elektroniska material,Tekniska högskolan
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(creator_code:org_t)
- American Institute of Physics (AIP), 2013
- 2013
- Engelska.
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Ingår i: Applied Physics Letters. - : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 102:12, s. 121103-
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
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- Comprehensive time-resolved photoluminescence measurements are performed on shallow neutral donor bound excitons (D0Xs) in bulk ZnO. It is found that transients of the no-phonon D0X transitions (I6-I9 lines) are largely affected by excitation conditions and change from a bi-exponential decay with characteristic fast (τf) and slow (τs) time constants under above-bandgap excitation to a single exponential one, determined by τs, under two-photon excitation. The slow decay also dominates transients of longitudinal optical phonon-assisted and two-electron-satellite D0X transitions, and is attributed to “bulk” D0X lifetime. The fast component is tentatively suggested to represent effects of surface recombination.
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- TECHNOLOGY
- TEKNIKVETENSKAP
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