rGO–Y2O3 intercalated PANI matrix (PANI–rGO–Y2O3) based polymeric nanohybrid material as electron transport layer for OLED application

  • Gobind Mandal
  • R. B. ChoudharyEmail author


Nanostructured PANI–rGO–Y2O3 (PGY) nanocomposites with varying concentration of Y2O3 were synthesized via the oxidative polymerization process. The formation of PANI, GO, PANI–rGO and PGY nanocomposites were examined by FTIR, and XRD techniques and their structural properties were investigated by FESEM technique. The FESEM images displayed that the PANI and Y2O3 nanoparticles were uniformly decorated over GO sheets. The UV–Vis analysis exhibited optimized reduced band gap ~ 1.50 eV for 30% PGY nanocomposite. The optimized 30% PGY nanocomposite was attributed to four bands like violet, blue, green and orange bands, and color coordinates were located in the blue region. The electrical properties for optimized PGY 30% nanocomposite showed 107% enhancement in current density in comparison to pristine polyaniline and high dielectric constant with a low dielectric loss. The PGY 30% nanocomposite, illustrated reduced optical band gap, high carrier density, high dielectric constant, excellence rate of electron–hole recombination and enhanced carrier density that aimed to be a very suitable candidate for an electron transport layer in OLED devices.


Electron transport layer OLEDs PANI–rGO–Y2O3 nanocomposite Graphene oxide Chemical oxidative polymerization 



The authors express their sincere thanks to Prof. Rajiv Shekhar, Director of Indian Institute of Technology (Indian School of Mines) Dhanbad for the constant support in this communication.


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© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Nanostructured Composite Materials Laboratory, Department of Applied PhysicsIndian Institute of Technology (Indian School of Mines)DhanbadIndia

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