Evaluation of the Efficiency of Polypyrrole Nanotubes/ Carbon Nanotubes Nanocomposite for Visible Light-emitting Diodes

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Mahdavinia Mahsa; Kiani Gholamreza; Karimzad Ghavidel Ayub

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Journal Paper

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Journal: Karafan Year:2024 | Volume:21 | Issue:1 Page(s): 435-452

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Information Journal Paper

Title

Evaluation of the Efficiency of Polypyrrole Nanotubes/ Carbon Nanotubes Nanocomposite for Visible Light-emitting Diodes

Author(s)

Mahdavinia Mahsa | Kiani Gholamreza | Karimzad Ghavidel Ayub | Issue Writer Certificate

Keywords

Polypyrrole

Polymer visible light emitting diode

Conductive polymer

Carbon Nanotube

Polyvinylcarbazole

Abstract

The main advantages of polymer LEDs include easy manufacturing, low cost, flexibility, and transparency of resulting products which have a special place in the world today. The purpose of this research was to design and manufacture polymer LEDs in the field of visible light based on conductive nano-polymers. In this research, a Polypyrrole/carbon nanotube nanocomposite was synthesized and its structural characteristics were examined by a scanning electron microscope. The results of this evaluation showed that Carbon Nanotubes are attached to the surface of Polypyrrole nanotubes and have good dispersion and uniformity on the surface of the substrate. Continuing with this nanocomposite, polyvinyl carbazole (PVK) was combined to create a doped LED polymer, particularly for its illuminant component. Characterization was evaluated using the energy diagram and the current-voltage diagram of the fabricated diode and was analyzed with the LED fabricated by pure polyvinyl carbazole. The results showed that more current was obtained by using Polypyrrole/carbon nanotube nanocomposite to the extent that at a constant voltage of 6 V, the current intensity was approximately 15 times. Converting the invisible light of LEDs into visible light by creating nanostructures was one of the achievements of the present research.

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