The electro-optic performance and photovoltaic effect of organic devices based on cesium carbonate/Al/molybdenum trioxide intermediate connector

Yanhong Deng, Jinjiang Wang, Qingdong Ou, Dengyu Zhang, Liezun Chen, Yanqing Li, Jianxin Tang

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)

Abstract

An intermediate connector of Cs2CO3/Al/MoO3 used in tandem organic light-emitting diodes (OLEDs) was investigated in this work. Here, an ultrathin Cs2CO3/Al was used as an electron-injection layer (EIL) from MoO3 to the adjacent electron transporting layer (ETL). To verify the function of this intermediate connector, the device performances were evaluated through current density-voltage-luminance characteristics, current density-efficiency curves, and EL spectra. Additionally, the effect of photon energy on carriers behavior in the Cs2CO3/Al/MoO3 connector is also estimated. The electrical properties and EL spectra of tandem OLEDs show that the Cs2CO3/Al/MoO3 can function well for charge generation and transport, and the current density-voltage curves of Cs2CO3/Al/MoO3 based special multilayer device shows the photovoltaic effect as a photovoltaic cell.

Original languageEnglish
Pages (from-to)452-457
Number of pages6
JournalOrganic Electronics
Volume51
DOIs
Publication statusPublished - Dec 2017

Keywords

  • CsCO/Al/MoO
  • Intermediate connectors
  • Organic light-emitting diodes
  • Photovoltaic effect
  • Tandem OLED

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