Beta
315749

AC conductivity Mechanism and Dielectric Relaxation of Bulk Titanium Phthalocyanine Chloride (TiPcCl2)

Article

Last updated: 03 Jan 2025

Subjects

-

Tags

-

Abstract

The X-ray diffraction patterns (XRD) indicate that the powder of Titanium phthalocyanine chloride exhibits a polycrystalline nature, characterized by a triclinic structure. The AC electrical conductivity and dielectric properties of a bulk TiPcCl2 sample in pellet form were examined using evaporated ohmic Ag electrodes in a temperature range (293- 363K) and frequency range (50 HZ- 5 MHz). The frequency dependence of σAC follows the Jonscher's universal dynamic law with the relation σAC = Aωs, where s is the frequency exponent. The observed value of s is less than a unit and decreases as the temperature rises, which was consistent with the correlated barrier hopping (CBH) model. The barrier height WM was determined. It is found also that lnσAC increases linearly with the reciprocal of the absolute temperature. This indicated that the AC conductivity is thermally activated process. The dielectric constant, ε_1, and the dielectric loss, ε_2, for bulk TiPcCl2 both dropped as frequency increases and rose as temperature rises. The dielectric modulus serves as an indicator for the existence of non-Debye relaxation events within the material. The relaxation periods, ascertained through analysis of the imaginary component of the modulus (M``), were found to conform to the Arrhenius equation.

DOI

10.21608/ejphysics.2023.230926.1092

Keywords

Organic semiconductor, TiPcCl2, Dielectric properties, AC conductivity

Authors

First Name

Sabrien

Last Name

Mahmoud Abdel hamid

MiddleName

-

Affiliation

Physics department, Faculty of sciences, South Valley University

Email

sabrienmahmoud339@gmail.com

City

-

Orcid

-

First Name

Mahmoud

Last Name

Dongol

MiddleName

-

Affiliation

Physics department, Faculty of sciences, South Valley University

Email

m_dongol2001@yahoo.com

City

Qena

Orcid

-

First Name

Abdelsalam

Last Name

Mohamed

MiddleName

FA

Affiliation

22 Qena-st.

Email

abdelsalam.mohamed@sci.svu.edu.eg

City

Qena

Orcid

-

First Name

Amr

Last Name

Abuelwafa

MiddleName

Attia

Affiliation

Physics department, Faculty of sciences, South Valley University

Email

amr.abuelwafa@sci.svu.edu.eg

City

Qena

Orcid

-

Volume

51

Article Issue

1

Related Issue

37142

Issue Date

2023-10-01

Receive Date

2023-08-27

Publish Date

2023-10-01

Page Start

135

Page End

149

Print ISSN

1110-0214

Online ISSN

2537-0960

Link

https://ejphysics.journals.ekb.eg/article_315749.html

Detail API

https://ejphysics.journals.ekb.eg/service?article_code=315749

Order

315,749

Type

Original Article

Type Code

441

Publication Type

Journal

Publication Title

Egyptian Journal of Physics

Publication Link

https://ejphysics.journals.ekb.eg/

MainTitle

AC conductivity Mechanism and Dielectric Relaxation of Bulk Titanium Phthalocyanine Chloride (TiPcCl2)

Details

Type

Article

Created At

23 Dec 2024