Physicochemical properties of polyaniline-ionic liquid mixtures and their application in dye-sensitized solar cells

Pankaj Attri, Dae Hoon Park, Seung Hyun Lee, Young Sun Kim, Young Beom Kim, Gi Chung Kwon, Wooyeol Choi, Yongseok Jun, Hae Seok Lee, Eun Ha Choi, In Tae Kim

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    In this study, we investigated the interactions between the ionic liquids (ILs) of ammonium and imidazolium families and polyaniline-emeraldine base [PANI (EB)]. PANI (EB) is one of the most studied conducting polymers owing to its applications in electronics, optical devices, sensors, etc. However, there is a massive scope of improvement in this area. In order to increase the utility of PANI (EB), we studied the interactions between PANI (EB) and ILs by using various techniques. Further, we studied the conductivity, morphology, and roughness of PANI (EB)-IL mixtures. We observed that ammonium- and imidazolium-family ILs have the potential to interact with PANI (EB). However, after the interactions, the ammonium-family IL-PANI (EB) mixtures showed more conductivity than the imidazolium-family IL-PANI (EB) mixtures. We also determined the strength of hydrogen bonding between ILs and PANI (EB) from semiempirical calculations carried out using HyperChem 7. Finally, we demonstrated that PANI (EB)-IL additives can be used as electrolytes in dye-sensitized solar cells. This study provides an insight into the combined effect of a polymer [PANI (EB)] and ILs, and this insight may generate many theoretical and experimental opportunities.

    Original languageEnglish
    Pages (from-to)2583-2595
    Number of pages13
    JournalScience of Advanced Materials
    Volume7
    Issue number12
    DOIs
    Publication statusPublished - 2015

    Bibliographical note

    Funding Information:
    We gratefully acknowledge a National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (NRF-2010-0027963). This work was also supported by a New & Renewable Energy of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korean government Ministry of Knowledge Economy (No. 96002011003) and by the Ministry of Knowledge Economy (MKE), Korea, under the project titled "Full color 360 degree 3D holographic video making technology" and by the Ministry of Culture, Sports, and Tourism (MCST) and Korea Creative Contents Agency (KOCCA) under the Culture Technology Research & Development Program 2012, and in part by Kwangwoon University 2015.

    Publisher Copyright:
    © 2015 by American Scientific Publisher.

    Keywords

    • Dye-sensitized solar cells
    • Ionic liquids
    • Polyaniline-emeraldine base

    ASJC Scopus subject areas

    • General Materials Science

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