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Optical and Charge Transport Characterization of Thermally Evaporated 3,5-Bis(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole Thin Films for ETL Applications in Optoelectronic Devices

Gurpreet Singh*, Ramanpreet Kaur Aulakh**, Sameer Kalia***, Neerja Sharma****

* Assistant Professor, Department of Physics, Guru Nanak Dev University College, Narot Jaimal Singh, Pathankot, Punjab, India.

** Assistant Professor, Department of Physics, Guru Nanak Dev University College, Patti, Tarn Taran, Punjab, India.

*** Associate Professor, Department of Physics, DAV College, Amritsar, Punjab, India.

**** Assistant Professor, Department of Physics, DAV College, Amritsar, Punjab, India.

Periodicity:July - September'2018
DOI : https://doi.org/10.26634/jms.6.2.14413

Abstract

This paper presents the surface morphological, optical and charge transport characterization of thermally evaporated thin film of organic material, namely 3, 5-Bis (4-tert-butylphenyl)-4-phenyl-4H-1, 2, 4-triazole (abbreviated as BBPT) prepared by well-known thermal evaporation technique, to be applied as an electron transport material in optoelectronic devices. Carrier mobility and AC conductivity are estimated from frequency dependent admittance -5 characterization performed over a single layer device having structure ITO/ BBPT /Al and are found in the range 5.17 x 10^-5 cm² V^-1s^-1 and 4.83575 × 10^-6 ohm^-1 m^-1, respectively. Various electrical parameters are calculated from charge transport
characterization of ITO/ BBPT /Al device. Results of this work demonstrated that the conduction mechanism is in good correlation with the theory of hopping conduction in amorphous materials and the material studied have a potential application as an Electron Transport Layer (ETL) material in optoelectronic devices.

Keywords

Charge Transport, Conduction Mechanism, Electron Transport Layer, Mobility, Optoelectronic

How to Cite this Article?

Singh, G., Aulakh, R. K.,Kalia, S. and Sharma, N.(2018). Optical and Charge Transport Characterization of Thermally Evaporated 3,5-Bis(4-Tert-Butylphenyl)-4-Phenyl-4h-1,2,4-Triazole Thin Films for ETL Applications in Optoelectronic Devices. i-manager’s Journal on Material Science, 6(2), 22-29. https://doi.org/10.26634/jms.6.2.14413

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Optical and Charge Transport Characterization of Thermally Evaporated 3,5-Bis(4-tert-butylphenyl)-4-phenyl-4H-1,2,4-triazole Thin Films for ETL Applications in Optoelectronic Devices

Abstract

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