Facile chemical strategy to synthesize Ag@polypyrrole microarrays and investigating its anisotropic effect on polymer conductivity

• Autorzy: Idrees Sumra , Ahmad Zahoor , Akhtar Tashfeen , Choudhary Muhammad Aziz , Rafiq Muhammad Aftab , Mehmood Arshad

Identyfikatory

DOI

10.2478/msp-2019-0068

• Języki publikacji: EN

Abstrakty

EN

A facile chemical approach was developed to fabricate microarrays (MAs) of Ag@polypyrrole nanocables (NCs). The strategy involved crosslinking the NCs by tetraethoxy silane (TEOS) under continuous pulse sonication without using a substrate. The material was characterized by scanning electron microscope (SEM) coupled with EDX, which revealed the longitudinal interconnections within the nanocables and creating unidirectional alignment in the form of MAs. FT-IR and Raman spectroscopy was employed to characterize the encapsulating polymer as polypyrrole (ppy) around Ag nanowires (NWs). The microarrays produced red shift in surface plasmon resonance (SPR) of Ag NWs, and drastically improved the thermal stability and conductivity of encasing ppy. It has imparted anisotropic conductivity effect on ppy which resulted in sharp decrease in resistivity from 8.35 × 10¹⁰ Ω to 2.449 Ω, when NCs were isolated and crosslinked into MAs form, respectively. The drastic decrease in resistivity of ppy was due to the anisotropic effect produced by the MAs format of NWs.

Słowa kluczowe

EN

nano-assembly; NCs microarrays; thermal stability; anisotropic conductivity

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2019
• Tom: Vol. 37, No. 4
• Strony: 563--569
• Opis fizyczny: Bibliogr. 26 poz., tab., rys.

Twórcy

autor

Idrees Sumra

• Department of Chemistry, Mirpur University of Science and Technology (MUST), Allama Iqbal Road, Mirpur, AJ&K, Pakistan

autor

Ahmad Zahoor

• Department of Chemistry, Mirpur University of Science and Technology (MUST), Allama Iqbal Road, Mirpur, AJ&K, Pakistan

autor

Akhtar Tashfeen

• Department of Chemistry, Mirpur University of Science and Technology (MUST), Allama Iqbal Road, Mirpur, AJ&K, Pakistan

autor

Choudhary Muhammad Aziz

• Department of Chemistry, Mirpur University of Science and Technology (MUST), Allama Iqbal Road, Mirpur, AJ&K, Pakistan

autor

Rafiq Muhammad Aftab

• Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS) Islamabad, Pakistan

autor

Mehmood Arshad

• Material Science and Engineering Division, National Institute of Laser and Optronics (NILOP), PIEAS, Nilore, Islamabad

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).