Optical and electronic characteristics of ITO/NPB/Alq3:DCJTB/Alq3/Ag heterostructure based organic light emitting diode

Gunjan Sharma, S. Z. Hashmi, Upendra Kumar, Sandhya Kattayat, M. Ayaz Ahmad, Shalendra Gautam, Saurabh Dalela, P. A. Alvi

Research output: Contribution to journalJournal articlepeer-review

3 Scopus citations

Abstract

In this research article, the emphasis is given on the simulation of optical and electronic characteristics of ITO/NPB/Alq3:DCJTB/Alq3/Ag heterostructure based organic light emitting diode (OLED). Under simulation, the behavior of excitons associated with EML and ETL have been studied with variation in anode voltage and current. In order to simulate the spectral characteristics, the Holstein model has been used for the Alq3 and DCJTB spectra in electron transport and emissive layers. The photon propagation model has been used to study the Purcell factor. In results, we have achieved I–V characteristics, luminescent power, output spectral power density, spectral radiance and spectral luminous flux. According to the results achieved, the operating voltage is found ∼ 4 V and the highest luminous flux of the designed OLED corresponds to ∼ 565 nm (yellow/orange color) in visible region. Hence, the designed OLED may be very suitable for emission of yellow/orange light at very low voltage ∼ 4 V.

Original languageEnglish
Article number165572
JournalOptik
Volume223
DOIs
StatePublished - Dec 2020

Keywords

  • Alq
  • DCJTB
  • I-V characteristics
  • ITO
  • Luminous flux
  • OLED

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