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<p>An experimental study has been conducted to explore the graphene monolayer influence on the electrical behavior of an organic diode based on poly(3-hexylthiophene) (P3HT). This polymer is deposited by spin-coating in a vertical diode configuration. A graphene monolayer was transferred from paper support film to an electrode contact. A current–voltage characterization (<i>I</i>–<i>V</i>) was performed via a glove box system under spikes. We found that graphene thin films play a significant role in improving the electrical response, such as current density and rectification ratio, which are multiplied by 20 and by more than 330, respectively. Additionally, the charge transport mechanism has been studied, and ohmic and the space charge limited current (SCLC) conduction behaviors were identified at low and higher voltages.</p>

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Enhanced Performance of P3HT-Based Vertical Organic Diode Through Graphene Monolayer Integration

  • 期刊论文

  • 发表日期：

    2025年8月7日

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  • Wassim Khaldi,
  • Samir Chatbouri,
  • Khaoula Ferchichi,
  • Aimen Boubaker,
  • Adel Kalboussi,
  • Kamal Lmimouni

摘要

An experimental study has been conducted to explore the graphene monolayer influence on the electrical behavior of an organic diode based on poly(3-hexylthiophene) (P3HT). This polymer is deposited by spin-coating in a vertical diode configuration. A graphene monolayer was transferred from paper support film to an electrode contact. A current–voltage characterization (I–V) was performed via a glove box system under spikes. We found that graphene thin films play a significant role in improving the electrical response, such as current density and rectification ratio, which are multiplied by 20 and by more than 330, respectively. Additionally, the charge transport mechanism has been studied, and ohmic and the space charge limited current (SCLC) conduction behaviors were identified at low and higher voltages.