X-ray and UVA irradiation of PAni-emeraldine: A comparative study on the vibrational modes

Authors

Lou Serafin M. Lozada ⋅ PH Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños and National Institute of Physics, University of the Philippines Diliman
Juan Carlo M. Peña ⋅ PH Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños
John Karlo J. Reynante ⋅ PH Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños

Abstract

In this work, effects of x-ray and UV irradiation on the chemical structure of doped and undoped polyaniline emeraldine (PANI-E) films were explored using infrared spectroscopy. PAni films were deposited on SiO_x by dry casting method. Results showed that nitrogen groups are involved in the red shifting of absorption bands after irradiation with UVA and X-ray. Also, it was observed that exposure of doped and undoped polyaniline film to these radiations blue shifted the aromatic CC and aliphatic CC conjugated bands. Blue shifting of CC bands implies higher energy requirement for polaronic migration to take place. The occurrence of aliphatic CC on one hand indicates decreased long chain conjugation. These affect the electrical property of PAni by lowering the intrinsic conductivity of the material.

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Issue

2008: Proceedings of the 26th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2008-PA-49

Section

Poster Session A (Materials, Optical, and Plasma Physics)

Published

2008-10-22

How to Cite

[1]

LSM Lozada, JCM Peña, and JKJ Reynante, X-ray and UVA irradiation of PAni-emeraldine: A comparative study on the vibrational modes, Proceedings of the Samahang Pisika ng Pilipinas 26, SPP-2008-PA-49 (2008). URL: https://proceedings.spp-online.org/article/view/SPP-2008-PA-49.