The influence of ammonia on the electrical properties of detonation nanodiamond

Autor:	Aysha Chaudhary, Mose Bevilacqua, Richard B. Jackman
Rok vydání:	2009
Předmět:	Nanostructure Materials science Electrical resistivity and conductivity Inorganic chemistry Detonation General Physics and Astronomy Nanotechnology Grain boundary Dielectric Detonation nanodiamond Electrical conductor Dielectric spectroscopy
Zdroj:	Journal of Applied Physics. 106:123704
ISSN:	1089-7550 0021-8979
DOI:	10.1063/1.3272912
Popis:	Detonation nanodiamonds (DNDs) are an interesting class of materials for sensing applications, but little is currently understood about their electrical properties. Here, aggregated DNDs are explored with impedance spectroscopy and are found to offer near-to-ideal dielectric characteristics, which is intriguing given their nanostructure. When exposed to ammonia, two highly conductive pathways emerge through the material; these appear to be associated with grain boundary and grain interior processes, the latter potentially due to surface transfer doping. This process is reversible given modest temperature increases suggesting DNDs may offer a solid state electrical platform for ammonia sensing applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ad6f029b7f15ae67605b75811dbae7c8 https://doi.org/10.1063/1.3272912 Zobrazit plný text záznamu