Growth and thermoelectric properties of nitrogen-doped diamond/graphite

Beitrag in einer Fachzeitschrift
(Originalarbeit)


Details zur Publikation

Autor(en): Haase A, Peters A, Rosiwal S
Zeitschrift: Diamond and Related Materials
Verlag: Elsevier Ltd
Jahr der Veröffentlichung: 2016
Band: 63
Seitenbereich: 222-226
ISSN: 0925-9635
Sprache: Englisch


Abstract


To investigate the growth and the thermoelectric properties of nitrogen-doped diamond, samples were grown by microwave plasma chemical vapor deposition with varying nitrogen flows as well as with a high nitrogen flow and varying methane flows. The samples were characterized according to their morphology, phase composition, electrical conductivity, and Seebeck coefficient. It was found that an increased nitrogen flow leads to a higher fraction of sp-bond carbon. Furthermore, a structure consisting of graphene nanowalls which exhibits many cavities is created. For nitrogen flows above 70 sccm, the electrical conductivity increases abruptly and significantly from less than 0.3s/m to more than 4.3s/m. A lower methane flow inverts this development. It was not possible to find a clear dependency of the Seebeck coefficient on the nitrogen flow. Seebeck coefficients were measured between -17μV/K at 23°C and -34μV/K at 110°C.



FAU-Autoren / FAU-Herausgeber

Haase, Armin
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Rosiwal, Stefan PD Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Zitierweisen

APA:
Haase, A., Peters, A., & Rosiwal, S. (2016). Growth and thermoelectric properties of nitrogen-doped diamond/graphite. Diamond and Related Materials, 63, 222-226. https://dx.doi.org/10.1016/j.diamond.2015.10.023

MLA:
Haase, Armin, Alexandra Peters, and Stefan Rosiwal. "Growth and thermoelectric properties of nitrogen-doped diamond/graphite." Diamond and Related Materials 63 (2016): 222-226.

BibTeX: 

Zuletzt aktualisiert 2018-16-11 um 13:50