Observation of ferroelectric response in conjugated polymer nanotubes

D. Majumdar; S. K. Saha

doi:10.1063/1.3425894

Observation of ferroelectric response in conjugated polymer nanotubes

D. Majumdar
, S. K. Saha

Academy of Innovative Semiconductor and Sustainable Manufacturing

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Long range charge delocalization usually inhibits ferroelectric response in conjugated polymers. We observe remarkable ferroelectric response (remnant polarization 2.8 μC cm^-2) in polyaniline (PANI) nanotubes synthesized by oxidative polymerization technique in methanol medium using anodic alumina (AAO) template. Ferroelectricity in PANI nanotubes arises due to spontaneous polarization caused by hydrogen bonds, created due to charge transfer between methanol molecule and aligned polymer chain. Due to directional growth along the AAO nanochannel, PANI chains are well-aligned and all these dipoles associated with hydrogen bonds are arranged in regular order-exhibiting exceptional ferroelectric response. However, such effect is absent in bulk PANI.

Original language	English
Article number	183113
Journal	Applied Physics Letters
Volume	96
Issue number	18
DOIs	https://doi.org/10.1063/1.3425894
Publication status	Published - 2010

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.3425894

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abstract = "Long range charge delocalization usually inhibits ferroelectric response in conjugated polymers. We observe remarkable ferroelectric response (remnant polarization 2.8 μC cm-2) in polyaniline (PANI) nanotubes synthesized by oxidative polymerization technique in methanol medium using anodic alumina (AAO) template. Ferroelectricity in PANI nanotubes arises due to spontaneous polarization caused by hydrogen bonds, created due to charge transfer between methanol molecule and aligned polymer chain. Due to directional growth along the AAO nanochannel, PANI chains are well-aligned and all these dipoles associated with hydrogen bonds are arranged in regular order-exhibiting exceptional ferroelectric response. However, such effect is absent in bulk PANI.",

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AU - Saha, S. K.

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AB - Long range charge delocalization usually inhibits ferroelectric response in conjugated polymers. We observe remarkable ferroelectric response (remnant polarization 2.8 μC cm-2) in polyaniline (PANI) nanotubes synthesized by oxidative polymerization technique in methanol medium using anodic alumina (AAO) template. Ferroelectricity in PANI nanotubes arises due to spontaneous polarization caused by hydrogen bonds, created due to charge transfer between methanol molecule and aligned polymer chain. Due to directional growth along the AAO nanochannel, PANI chains are well-aligned and all these dipoles associated with hydrogen bonds are arranged in regular order-exhibiting exceptional ferroelectric response. However, such effect is absent in bulk PANI.

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Observation of ferroelectric response in conjugated polymer nanotubes

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