WFRF:(Ferreira Gustavo C.)
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- Ferreira Da Silva, A. (author)
Growth, optical characterization and modeling of ZnO nanorods on Si, SiC and macroporous si structure
- Article/chapterEnglish2009
Publisher, publication year, extent ...
- CRC Press,2009
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:kth-152440
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-152440URI
Supplementary language notes
- Language:English
- Summary in:English
Part of subdatabase
- SwePubSwePub
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Notes
- QC 20140926
- Zinc Oxide (ZnO) and Silicon Carbide (SiC) are prominent materials with large applicability such as optoelectronic nanodevices and for instance ultraviolet detectors. There is lack of important information about optical transitions beyond the indirect band gap energy (BGE) of 4H-SÍC and even more for ZnO direct BGE grown on the former material. Using vapor-liquid-solid and the aqueous chemical growth methods we have grown ZnO nanorods on different substrates, such as quartz, n- and p-type porous silicon, and n-type 4H-SÍC. Scanning electron microscopy (SEM) was employed to compare sample morphologies. The absorption was calculated employing a projector augmented wave (PAW) method. The measured absorption of ZnO nanorods, on different substrates, is lower than that observed for ZnO films on quartz substrate, in the low energy spectral range. It is observed a strong effect of 4H-SÍC substrates on ZnO nanorod properties. Experiment and theory show a good agreement when the shape of the optical absorption is considered for both materials.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Nanoteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Nano-technology hsv//eng
- Macroporous
- Nanorods
- SiC
Added entries (persons, corporate bodies, meetings, titles ...)
- Meira, M. V. C. (author)
- Freitas Jr., J. A. (author)
- Baldissera, GustavoKTH,Materialvetenskap(Swepub:kth)u10f0l5e (author)
- Persson, ClasKTH,Materialvetenskap(Swepub:kth)u16hf74r (author)
- Gutman, N. (author)
- Sa'ar, A. (author)
- Klason, P. (author)
- Willander, M. (author)
- KTHMaterialvetenskap (creator_code:org_t)
Related titles
- In:Technical Proceedings of the 2009 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2009: CRC Press, s. 206-20997814398178349781439817841
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