Identification of an OH-Li center in ZnO: Infrared absorption spectroscopy and density functional theory

Shi, Gang; Stavola, Michael; Fowler, W. Beall

doi:10.1103/physrevb.73.081201

Cited by 49 publications

(33 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…11,12 Halliburton et al 5 proposed that this local vibrational mode originates from an OH-Li Zn complex, and they concluded, based on quantification of the absorption line and the strength of the electron paramagnetic resonance (EPR) signal of the Li Zn , that 99% of the Li atoms in their as-grown sample was in the form of such OH-Li complexes. The high apparent thermal stability (∼1250…”

Section: Introductionmentioning

confidence: 99%

H passivation of Li on Zn-site in ZnO: Positron annihilation spectroscopy and secondary ion mass spectrometry

et al. 2011

View full text Add to dashboard Cite

The interaction of hydrogen (H) with lithium (Li) and zinc vacancies (V Zn ) in hydrothermally grown n-type zinc oxide (ZnO) has been investigated by positron annihilation spectroscopy (PAS) and secondary ion mass spectrometry. Li on Zn-site (Li Zn ) is found to be the dominant trap for migrating H atoms, while the trapping efficiency of V Zn is considerably smaller. After hydrogenation, where the Li Zn acceptor is passivated via formation of neutral Li Zn -H pairs, V Zn occurs as the prime PAS signature and with a concentration similar to that observed in nonhydrogenated Li-poor samples. Despite a low efficiency as an H trap, the apparent concentration of V Zn in Li-poor samples decreases after hydrogenation, as detected by PAS, and evidence for formation of the neutral V Zn H 2 complex is presented.

show abstract

Section: Introductionmentioning

confidence: 99%

H passivation of Li on Zn-site in ZnO: Positron annihilation spectroscopy and secondary ion mass spectrometry

et al. 2011

View full text Add to dashboard Cite

show abstract

“…3 The isolated H interstitials are predicted to have low migration energies (~0.5 eV for different configurations of H BC ) and can become mobile at room temperature. 8 More thermally stable H-related defects are therefore expected to be H interstitials trapping at acceptor impurities 9,10,11 or interstitial H 2 molecules.…”

Section: Introductionmentioning

confidence: 99%

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

Són

Isoya

Ivanov

et al. 2014

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. 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, Zn V 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.

show abstract

“…To bypass this difficulty, ZnO sample was hydrogenated at 725 8C (see Section 2). This procedure results in passivation of Li Zn acceptors via formation of the LiH complexes [28,33,34].…”

Section: Photoconductivitymentioning

confidence: 99%

Identification of shallow Al donors in ZnO

Herklotz

Lavrov

Weber

et al. 2011

Physica Status Solidi (b)

View full text Add to dashboard Cite

A combined magnetic resonance, photoluminescence, photoconductivity, and Raman scattering study of ZnO is presented. Electron paramagnetic resonance (EPR) and electron-nuclear double resonance (ENDOR) spectroscopy identify substitutional Al as a binding core of a shallow, effective-mass-like donor in ZnO. Based on the correlation between the EPR and photoluminescence data it is shown that recombination of an exciton bound to Al gives rise to the 3360.7 meV photoluminescence line (I 6 ). A 1s ! 2p donor transition at 316 cm À1 is detected in photoconductivity and Raman spectra.

show abstract

Identification of an OH-Li center in ZnO: Infrared absorption spectroscopy and density functional theory

Cited by 49 publications

References 27 publications

H passivation of Li on Zn-site in ZnO: Positron annihilation spectroscopy and secondary ion mass spectrometry

H passivation of Li on Zn-site in ZnO: Positron annihilation spectroscopy and secondary ion mass spectrometry

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

Identification of shallow Al donors in ZnO

Contact Info

Product

Resources

About