Pulsed EPR and ENDOR study of SiC nanopowders

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00439631" target="_blank" >RIV/68378271:_____/14:00439631 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.12693/APhysPolA.126.1063" target="_blank" >http://dx.doi.org/10.12693/APhysPolA.126.1063</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.12693/APhysPolA.126.1063" target="_blank" >10.12693/APhysPolA.126.1063</a>

Result language
angličtina
Original language name
Pulsed EPR and ENDOR study of SiC nanopowders
Original language description
In this work eld-sweep electron spin echo and pulsed electron nuclear double resonance study of the silicon carbide (SiC) nanoparticles (np-SiC) of di erent sizes is presented. Nitrogen (N) triplet lines due to the isolated N donor state was observed innp-SiC with grain size d > 100 nm. With a decrease of the particle size up to 50 nm the N triplet lines transforms into one single exchange line due to the delocalization of the donor wave function caused by the size con nement e ect. Along with N donorsthe carbon vacancy (VC) located in cubic phase was observed in np-SiC with d < 100 nm. The further decrease of the grain size to d < 50 nm leads to the appearance of the VC located in hexagonal crystalline phase and carbon dangling bonds located in thecarbon excess phase of np-SiC. The fact that only N donor center at k2 quasi-cubic position substituting Si site was observed in the eld-sweep electron spin echo and pulsed electron.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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