High efficiency polymer light-emitting diodes using ternary electron injection layers

Ten-Chin Wen, Kai Wei Tsai, Jiun Yun Jan, Tzung-Fang Guo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The high efficiency of polymer light-emitting diodes (PLED) with ternary electron injection layers (EILs) including tetraoctylammonium bromide (TOAB), poly (vinylpyrrolidone) (PVP) and polyethylenimine (PEIE) to comprise PEIE-PVP-TOAB (E-P-T) EIL that has been achieved and well-studied via mixture design. In the unary system, TOAB can construct interfacial dipole via self-assembly crystallization atop various conjugated polymer surfaces to elevate the vacuum level of cathode. When employing three EILs as ternary system, the electrical property of PLED was further improved. The optimum luminescence efficiency respectively are 13.4 cd/A and 13.5 cd/A for T-P-D and E-P-T based PLED. In the ternary system (E-P-T), PEIE, PVP, and TOAB respectively provides electron injection, hole blocking, and polymer intersecting in the ternary based devices. The intersecting between PEIE and PVP by TOAB was evidenced by roughness change from AFM images.

Original languageEnglish
Title of host publicationOrganic Photonic Materials and Devices XVIII
EditorsFrancois Kajzar, Christopher E. Tabor, Toshikuni Kaino, Yasuhiro Koike
PublisherSPIE
ISBN (Electronic)9781628419801
DOIs
Publication statusPublished - 2016 Jan 1
EventOrganic Photonic Materials and Devices XVIII - San Francisco, United States
Duration: 2016 Feb 152016 Feb 17

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9745
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherOrganic Photonic Materials and Devices XVIII
CountryUnited States
CitySan Francisco
Period16-02-1516-02-17

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'High efficiency polymer light-emitting diodes using ternary electron injection layers'. Together they form a unique fingerprint.

Cite this