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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0113

    • Keywords

       

      ${\pi}$-Conjugated small organic molecules; p-nitrobenzylidenemalonotrile; P3HT; charge transfer; electrical characteristics.

    • Abstract

       

      The solution-processable small organic molecules have turned into one of the most promising semiconductors due to their exclusive properties in the inexpensive optoelectronic field. In this work, we report the study of the incorporation effect of the small organic molecules of p-nitro-benzylidenemalonotrile (N$O_2$-BMN) into conjugated polymer poly(3-hexylthiophene) (P3HT) on the optical and electrical properties. The UV–visible and photoluminescence (PL) responses were performed to confirm the enhancement of the optical properties. PL results showed that P3HT: N$O_2$- BMN composite with (1:1.25) ratio has the best charge transfer efficiency that occurs between both compounds. The current–voltage characteristics through dark J (V) revealed that the ITO/P3HT: N$O_2$ BMN/Al structure had a diode behaviour with a relatively low threshold voltage ($V_{th}$). We have estimated the different electrical parameters such as the saturation current, barrier high ${\Phi}_b$ and the ideality factor (n). Moreover, we have evaluated the different charge transport mechanisms by the analyses of J–V characteristics in a double logarithmic scale under dark conditions. The obtained results proved that the incorporation of N$O_2$-BMN enhances the electrical properties of the composite.

    • Author Affiliations

       

      ASMA MILED1 HAMZA SAIDI1 HASSEN DHIFAOUI1 RIADH HANNACHI2 ABDELAZIZ BOUAZIZI1

      1. Equipe Dispositifs Electroniques Organiques et Photovoltaı¨que Moléculaire, Laboratoire de la Matière Condensée et des Nanosciences, Faculté des Sciences de Monastir, Université de Monastir, Avenue de l’Environnement, 5019 Monastir, Tunisia
      2. Laboratoire des Energies et des Matériaux (LabEM), Institut Supérieur d’Informatique et des Techniques de Communication, Université de Sousse, 4011 Hammam Sousse, Tunisia

    • Dates

       
      Published
      25 June 2022
      Manuscript received
      17 June 2021
      Accepted
      11 February 2022
      Final version published online
      25 June 2022

  • Bulletin of Materials Science | News

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    • Editorial Note on Continuous Article Publication

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      Click here for Editorial Note on CAP Mode

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