Electrical characterization studies and doping effects of rubidium carbonate in organic layer by admittance spectroscopy

Ming Chi Li, Chi Ting Tsai, Ya Han Liu, Po Ching Kao, Sheng Yuan Chu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The doping effects and electrical characteristics of rubidium carbonate (Rb2CO3) in organic bipolar charge transport material 2-methyl-9,10-di(2-naphthyl) anthracene (MADN) has been investigated. Utilizing temperature-dependent admittance spectroscopy, the electron injection barrier (so-called activation energy) is verified to be reduced from 1.33 to 0.2878 eV by the incorporation of Rb2CO3 from 0 to 33 vol%. The precision of admittance spectroscopy is further proved by photovoltaic measurement. Higher mobility has achieved using space-charge-limited current (SCLC) determination. Consequently, these enhancements in electron injection and transport yield superior device performance for organic light-emitting diodes (OLEDs).

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalSolid-State Electronics
Volume148
DOIs
Publication statusPublished - 2018 Oct

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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