Effects of the metal electrode on dielectric constant of MgO nanoparticles

Fatih Dumludag*, Didem Bakay, Ahmet Altindal

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Konferans katkısıbilirkişi

2 Atıf (Scopus)

Özet

In this study, effects of the metal electrode on dielectric properties of MgO nanoparticles were investigated. MgCl2.6H2O were dissolved in ethanol and aged for a long time under stirring. The particles were obtained by precipitation method. Crystal structure of particles was investigated using X-ray diffraction. In order to determine the electrical properties of the MgO nanoparticles, metal electrodes were deposited onto both sides of the MgO pellets using thermal evaporation method in high vacuum (<10-6 mbar). Dc and ac electrical properties of two MgO pellets with different metal electrodes (Au and Ag) were determined under vacuum ambient as a function of temperature (293-523 K). ac electrical measurements were carried out between the frequencies 40 Hz-105 Hz. Activation energy values of the MgO pellets with different metal electrodes were calculated using the relation σdc= σoe-Ea/kt and from slope of the dc conductivity (σdc) - inverse of temperature (1/T) curve. Dielectric constant was calculated as a function of both frequency and temperature. MgO pellet with Au electrode showed a small decrease with increasing frequency in the measured frequency range.

Orijinal dilİngilizce
Ana bilgisayar yayını başlığı7th International Conference of the Balkan Physical Union - Organized by the Hellenic Physical Society with Cooperation of the Physics Departments of Universities in Greece
Sayfalar533-536
Sayfa sayısı4
DOI'lar
Yayın durumuYayınlandı - 2010
Harici olarak yayınlandıEvet
Etkinlik7th International Conference of the Balkan Physical Union - Alexandroupolis, Greece
Süre: 9 Eyl 200913 Eyl 2009

Yayın serisi

AdıAIP Conference Proceedings
Hacim1203
ISSN (Basılı)0094-243X
ISSN (Elektronik)1551-7616

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???7th International Conference of the Balkan Physical Union
Ülke/BölgeGreece
ŞehirAlexandroupolis
Periyot9/09/0913/09/09

Parmak izi

Effects of the metal electrode on dielectric constant of MgO nanoparticles' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

Alıntı Yap