Oxygen vacancy and Mn2+ induced ferromagnetism in Mn-doped ZnO thin films

Guan, Sujun; Nasu, Naho; Tamamoto, Yuri; Yamanobe, Maria; Zhao, Xinwei

doi:10.1007/s11431-018-9463-6

Cited by 5 publications

(2 citation statements)

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“…Mn 2p 3/2 is composed of two peaks centered at 640.3 eV and 641.8 eV which indicate oxidation states of Mn 2+ and Mn 3+ respectively. [ 49,53 ] O 1s spectrum shows an asymmetric peak that fits with two deconvoluted Gaussian components. Binding energy of 529.9 eV indicates O 2− bonding with Zn and Mn.…”

Section: Resultsmentioning

confidence: 99%

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Optical and Structural Properties of Manganese‐Doped Zinc Oxide Grown by Metal‐Organic Chemical Vapor Deposition

Saravade

Manzoor

Corda

et al. 2021

Advanced Optical Materials

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This systematic study investigates the optical properties and process−structure−property relationships of Mn‐doped zinc oxide (ZnMnO) grown by metal‐organic chemical vapor deposition with varying Mn‐doping concentration and growth conditions. ZnMnO exhibits a good crystal quality oriented in the (002) direction and contains intermixtures of zinc oxide (ZnO)‐like and manganese oxide (MnxOy)‐like phases. The material exhibits a direct energy absorption band‐edge and a reduction in bandgap with Mn‐doping. Photoluminescence studies show that Mn‐doping can simultaneously tailor broad green band luminescence and ultraviolet edge emissions. Post‐growth air‐annealing results in broad MnxOy‐related photoluminescence emissions at 3.3–4.5 eV. A further reduction in the absorption band‐edge is also observed with annealing. Results indicate that luminescence wavelengths and intensities, and absorption band‐edge can be tuned with the Mn‐doping process. This paper promotes a thorough understanding of defect centers in ZnO with transition metal doping and their interrelation with optical characteristics. The work provides a solid foundation for the development of optoelectronic devices, such as light emitting diodes, solar cells, lasers, and photodetectors using ZnO‐based materials.

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Section: Resultsmentioning

confidence: 99%

“…The peak at slightly higher energy (531.8 eV) and lower peak height is attributed to oxygen defects (O d ) associated with oxygen‐deficient regions in ZnMnO. [ 47,53 ]…”

Section: Resultsmentioning

confidence: 99%