This title appears in the Scientific Report :
2013
Please use the identifier:
http://hdl.handle.net/2128/5458 in citations.
Please use the identifier: http://dx.doi.org/10.1063/1.4825367 in citations.
Inhomogeneity of donor doping in SrTiO3 substrates studied by fluorescence-lifetime imaging microscopy
Inhomogeneity of donor doping in SrTiO3 substrates studied by fluorescence-lifetime imaging microscopy
Fluorescence-lifetime imaging microscopy (FLIM) was applied to investigate the donor distribution in SrTiO3 single crystals. On the surfaces of Nb- and La-doped SrTiO3, structures with different fluorescence intensities and lifetimes were found that could be related to different concentrations of Ti...
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Personal Name(s): | Rodenbücher, C. (Corresponding author) |
---|---|
Gensch, T. / Speier, W. / Breuer, U. / Pilch, M / Hardtdegen, H. / Mikulics, M. / Zych, E. / Waser, R. / Szot, K. | |
Contributing Institute: |
JARA-FIT; JARA-FIT Elektronische Materialien; PGI-7 Halbleiter-Nanoelektronik; PGI-9 Analytik; ZEA-3 Zelluläre Biophysik; ICS-4 |
Published in: | Applied physics letters, 103 (2013) 16, S. 162904 - |
Imprint: |
Melville, NY
American Institute of Physics
2013
|
DOI: |
10.1063/1.4825367 |
Document Type: |
Journal Article |
Research Program: |
Frontiers of charge based Electronics |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1063/1.4825367 in citations.
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520 | |a Fluorescence-lifetime imaging microscopy (FLIM) was applied to investigate the donor distribution in SrTiO3 single crystals. On the surfaces of Nb- and La-doped SrTiO3, structures with different fluorescence intensities and lifetimes were found that could be related to different concentrations of Ti3+. Furthermore, the inhomogeneous distribution of donors caused a non-uniform conductivity of the surface, which complicates the production of potential electronic devices by the deposition of oxide thin films on top of doped single crystals. Hence, we propose FLIM as a convenient technique (length scale: 1 μm) for characterizing the quality of doped oxide surfaces, which could help to identify appropriate substrate materials. | ||
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