TY  - JOUR
T1  - Investigation of Dielectric Anisotropy and Electrical Modulus-Impedance Properties of PCBM/E7 Composite for Organic Electronic Devices Applications
AU  - Demir, Ahmet
AU  - Musatat, Ahmad Badreddin
AU  - Kip, Şule Zeynep
PY  - 2025
DA  - June
Y2  - 2024
DO  - 10.18466/cbayarfbe.1562667
JF  - Celal Bayar University Journal of Science
JO  - CBUJOS
PB  - Manisa Celal Bayar Üniversitesi
WT  - DergiPark
SN  - 1305-130X
SP  - 72
EP  - 79
VL  - 21
IS  - 2
LA  - en
AB  - This study investigates the dielectric anisotropy and electrical modulus-impedance properties of a PCBM/E7 composite material for organic electronic devices applications. The research examines a specially fabricated cell combining nematic liquid crystal E7 with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) semiconductor. Through a comprehensive analysis of dielectric anisotropy, AC conductivity, electrical modulus, and impedance characteristics under varying frequencies and applied voltages (-6.0V to +6.0V), the study reveals distinct behavioral regions and multiple relaxation processes. Key findings include frequency-dependent dielectric anisotropy transitions, enhanced AC conductivity at higher frequencies and voltages, and voltage-modulated impedance characteristics. The observed dual-peak phase angle response suggests multiple relaxation mechanisms, indicating the composite's potential for voltage-tunable electrical properties in advanced optoelectronic applications.
KW  - AC conductivity
KW  - dielectric anisotropy
KW  - electrical modulus
KW  - impedance spectroscopy
KW  - liquid crystal
KW  - E7-PCBM composite
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UR  - https://doi.org/10.18466/cbayarfbe.1562667
L1  - https://dergipark.org.tr/tr/download/article-file/4268913
ER  -