Yıl 2017, Cilt 22, Sayı 3, Sayfalar 145 - 152 2017-12-28

FTALOSIYANIN İNCE FILMDE EMPEDANS SPEKTROSKOPI VE DIELEKTRIK DURULMA
Impedance Spectroscopy and Dielectric Relaxation in Phthalocyanine Thin Film

Nursel CAN [1] , Ahmet ALTINDAL [2]

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Döndürerek kaplama yöntemiyle hazırlanan top tipi çinko (II) ftalosiyanin ince filmlerin dielektrik durulma davranışları 5 Hz. ile 13x106 Hz frekans aralığında sıcaklığa bağlı olarak (298 K – 468 K sıcaklık aralığında) empedans spektroskopi yöntemiyle incelenmiştir. Elde edilen verilerin modellenmesinde sistemin dielektrik davranışının paralel RC eşdeğer devre ile temsil edilebileceği görülmüştür. Filmlerde ac iletkenliğin frekansa bağlılığının ωm şeklinde olduğu ve frekansın üssü olan m parametresinin kuvvetle sıcaklığa bağlı olduğu gözlemlenmiştir. Deneysel olarak elde edilen ac iletkenlik verileri iki farklı model kullanılarak analiz edilmiştir. Frekansın üssü olan m parametresinin sıcaklığa bağlılığının incelenmesinde çinko (II) ftalosiyanin ince filmlerde ac yük iletiminin hoplama mekanizması sayesinde gerçekleştiği sonucuna varılmıştır.

Dielectric relaxation behavior of spin coated thin film of novel ball-type binuclear zinc(II) phthalocyanine were studied using impedance spectroscopy technique over a frequency range of 5–13x106 Hz and temperatures (298 – 468 K). Simulation of the obtained impedance data indicated that the dielectric behaviour of the system can be modeled by a parallel RC electrical equivalent circuit. A frequency dependence in the form of ωm, where the index m is found strongly temperature dependent, was observed for the ac conductivity σac. Ac conductivity data were analyzed in terms two different models. The observed temperature dependence of the m indicate that the ac charge transport in Pc film take place via hopping process.

 

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Konular Mühendislik ve Temel Bilimler
Dergi Bölümü Araştırma Makaleleri
Yazarlar

Yazar: Nursel CAN (Sorumlu Yazar)
E-posta: can@yildiz.edu.tr

Yazar: Ahmet ALTINDAL
E-posta: altindal@yildiz.edu.tr

Bibtex @araştırma makalesi { uumfd372447, journal = {Uludağ University Journal of The Faculty of Engineering}, issn = {2148-4147}, address = {Uludağ Üniversitesi}, year = {2017}, volume = {22}, pages = {145 - 152}, doi = {10.17482/uumfd.372447}, title = {FTALOSIYANIN İNCE FILMDE EMPEDANS SPEKTROSKOPI VE DIELEKTRIK DURULMA}, key = {cite}, author = {CAN, Nursel and ALTINDAL, Ahmet} }
APA CAN, N , ALTINDAL, A . (2017). FTALOSIYANIN İNCE FILMDE EMPEDANS SPEKTROSKOPI VE DIELEKTRIK DURULMA. Uludağ University Journal of The Faculty of Engineering, 22 (3), 145-152. DOI: 10.17482/uumfd.372447
MLA CAN, N , ALTINDAL, A . "FTALOSIYANIN İNCE FILMDE EMPEDANS SPEKTROSKOPI VE DIELEKTRIK DURULMA". Uludağ University Journal of The Faculty of Engineering 22 (2017): 145-152 <http://dergipark.gov.tr/uumfd/issue/31375/372447>
Chicago CAN, N , ALTINDAL, A . "FTALOSIYANIN İNCE FILMDE EMPEDANS SPEKTROSKOPI VE DIELEKTRIK DURULMA". Uludağ University Journal of The Faculty of Engineering 22 (2017): 145-152
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