An investigation of Fe-doped ZnO thin films grown by magnetron sputtering

Gorzkowska-Sobas, Agnieszka Anna; Galeckas, Augustinas; Sunding, Martin Fleissner; Diplas, Spyridon; Kuznetsov, A Yu

doi:10.1088/0031-8949/2010/t141/014004

Cited by 6 publications

(2 citation statements)

References 29 publications

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“…Incorporation of Cd into ZnO matrix reduces the band gap, resulting in band gap tunability from UV to the visible spectral range 1 , while maintaining superior properties of the direct band gap 2 , 3 , thereby benefitting device performance 1 . As previous research illustrates, conventional tools such as photoluminescence (PL) 1 , cathodoluminescence (CL) 4 , optical absorption 5 and X-ray photoelectron spectroscopy (XPS) 6 are very useful for band gap structure measurement of doped ZnO with high energy resolution. However, they suffered from limited spatial resolution (several microns) and can only reveal one-dimensional band gap structure, thus calling for the application of high resolution techniques.…”

Section: Introductionmentioning

confidence: 99%

Band gap maps beyond the delocalization limit: correlation between optical band gaps and plasmon energies at the nanoscale

Zhan

Aarholt

Kuznetsov

et al. 2018

Sci Rep

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Recent progresses in nanoscale semiconductor technology have heightened the need for measurements of band gaps with high spatial resolution. Band gap mapping can be performed through a combination of probe-corrected scanning transmission electron microscopy (STEM) and monochromated electron energy-loss spectroscopy (EELS), but are rare owing to the complexity of the experiments and the data analysis. Furthermore, although this method is far superior in terms of spatial resolution to any other techniques, it is still fundamentally resolution-limited due to inelastic delocalization of the EELS signal. In this work we have established a quantitative correlation between optical band gaps and plasmon energies using the Zn1−xCdxO/ZnO system as an example, thereby side-stepping the fundamental resolution limits of band gap measurements, and providing a simple and convenient approach to achieve band gap maps with unprecedented spatial resolution.

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Section: Introductionmentioning

confidence: 99%

Band gap maps beyond the delocalization limit: correlation between optical band gaps and plasmon energies at the nanoscale

Zhan

Aarholt

Kuznetsov

et al. 2018

Sci Rep

View full text Add to dashboard Cite

show abstract

“…[46][47][48] or Fe 3+ [ref. [49][50][51][52] or mixed Fe 2+ / Fe 3+ . 53,54 However, no Fe substitution was observed in these lms deposited via AACVD.…”

Section: Elemental Analysismentioning

confidence: 99%