Negative U‐properties of the oxygen‐vacancy in ZnO

6533b7d5fe1ef96bd1264564

RESEARCH PRODUCT

Negative U‐properties of the oxygen‐vacancy in ZnO

Bruno K. Meyer Ramón Tena-zaera Detlev M. Hofmann Joachim Sann C. Martínez-tomás Gerhard Pensl Jesús Zúñiga-pérez Thomas Frank Vicente Muñoz-sanjosé D. Pfisterer

subject

Deep-level transient spectroscopy Chemistry chemistry.chemical_element Atomic physics Condensed Matter Physics Oxygen Conduction band Excitation Oxygen vacancy Intensity (physics)

description

It is shown that the intensity of the oxygen vacancy (VO) related emission in ZnO at 2.45 eV correlates to the concentration of the donor level E4. E4 is located 530 meV below the conduction band and attributed to the VO0/++ recharging. Deep level transient spectroscopy (DLTS) experiments with optical excitation locate the VO2+/+ level position 140 meV below the conduction band and give evidence for the “negative- U” properties of the oxygen vacancies in ZnO. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

year	journal	country	edition	language
2006-03-01	physica status solidi c

https://doi.org/10.1002/pssc.200564650

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