Optical Properties of Gold Nanoparticles Doped P3HT Nanowires Films

Nursaadah Ahmad Poad; Norhana Abdul Halim; Nor Azlian Abdul Manaf; Nurul Syahirah Nasuha Sa’aya; Keat Khim Ong; Ganesan Krishnan; Jamal Kazmi; Siti Zulaikha Ngah Demon

doi:10.37934/armne.23.1.2634

Authors

Nursaadah Ahmad Poad Faculty of Defence Science and Technology, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
Norhana Abdul Halim Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
Nor Azlian Abdul Manaf Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
Nurul Syahirah Nasuha Sa’aya Faculty of Defence Science and Technology, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
Ong Keat Khim Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia
Ganesan Krishnan Laser Centre, Ibnu Sina Institute, University Technology of Malaysia, Skudai, 81310 Johor Bahru, Johor, Malaysia
Jamal Kazmi Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
Siti Zulaikha Ngah Demon Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

DOI:

https://doi.org/10.37934/armne.23.1.2634

Keywords:

P3HT, polymer nanowire, self-assembly, gold doping, UV-Vis, dip coating

Abstract

Poly (3-hexyl-thiophene-2,5-diyl) (P3HT) material is widely used as the benchmark of p-type semiconductors in organic photovoltaics due to its high conductivity and self-assembly into nanowires. In this study, gold-doped P3HT nanowires were synthesized using o-xylene, and their optical and electronic changes were investigated. P3HT nanowires were kept in the dark for 72 hours to obtain 60 – 80 nm diameter of nanowires. 1 mM of chloroauric acid doping was used as glass-coated P3HT nanowires were dipped repetitively into the chloroauric acid solution. It was found that visible absorbance intensity reduced and the calculated optical bandgap energy of P3HT nanowires thin film decreased as much as 0.08 eV after doping. FTIR and Raman show there are no extreme changes in P3HT conjugated backbones structure after doping meaning that the gold did not completely integrate within nanowires. From this observation, we discussed the feasibility of this coating method to produce metal-doped organic film and the required improvement to suit photonic device applications.

Author Biographies

Nursaadah Ahmad Poad, Faculty of Defence Science and Technology, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

nursaadah_ahmadpoad@yahoo.com

Norhana Abdul Halim, Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

norhana@upnm.edu.my

Nor Azlian Abdul Manaf, Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

azlian@upnm.edu.my

Nurul Syahirah Nasuha Sa’aya, Faculty of Defence Science and Technology, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

syahirahnasuha.saaya@gmail.com

Ong Keat Khim, Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

ongkhim@upnm.edu.my

Ganesan Krishnan, Laser Centre, Ibnu Sina Institute, University Technology of Malaysia, Skudai, 81310 Johor Bahru, Johor, Malaysia

k.ganesan@utm.my

Jamal Kazmi, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China

jamal_physics@outlook.com

Siti Zulaikha Ngah Demon, Centre for Defence Foundation Studies, National Defence University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

zulaikha@upnm.edu.my