Hydrogen at zinc vacancy of ZnO: an EPR and ESEEM study

Son, Nguyen TienLinköpings universitet,Halvledarmaterial,Tekniska högskolan (författare)

Hydrogen at zinc vacancy of ZnO : an EPR and ESEEM study

An electron paramagnetic resonance (EPR) spectrum, labeled S1, with small-splitting doublet accompanied by weak satellites is observed in ZnO irradiated with 2 MeV electrons. The obtained structure is shown to be the hyperfine structure due to the dipolar interaction between an unpaired electron spin and a nuclear spin of hydrogen (H). The observation of the nuclear Zeeman frequency of H in electron spin echo envelope modulation experiments further confirmed the presence of a hydrogen atom in S1. From the observed spin-Hamiltonian parameters, S1 is identified to be the partly H-passivated Zn vacancy,V-Zn(-) H+, with the H+ ion making a short O-H bond with only one nearest O neighbor of V-Zn in the basal plane, being off the substitutional site, while the unpaired electron spin, which gives rise to the observed EPR signal, is localized on the p orbital of another O neighbor also in the basal plane.

Isoya, J.University of Tsukuba, Japan (författare)
Ivanov, Ivan GueorguievLinköpings universitet,Halvledarmaterial,Tekniska högskolan(Swepub:liu)ivaiv28 (författare)
Ohshima, T.Japan Atomic Energy Agency, Takasaki, Japan (författare)
Janzén, ErikLinköpings universitet,Halvledarmaterial,Tekniska högskolan(Swepub:liu)erija14 (författare)
Linköpings universitetHalvledarmaterial (creator_code:org_t)

Ingår i:International Conference on Defects in Semiconductors 2013: American Institute of Physics (AIP), s. 341-3449780735412156

Av författaren/redakt...: Son, Nguyen Tien; Isoya, J.; Ivanov, Ivan Gue ...; Ohshima, T.; Janzén, Erik

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