Jump to main content
Jump to site search


Spirobi[dibenzo[b,e][1,4]azasiline]: a novel platform for host materials in highly efficient organic light-emitting diodes

Author affiliations

Abstract

A novel spiro-type material (5H,5′H-10,10′-spirobi[dibenzo[b,e][1,4]azasiline]-5,5′-diyl)bis((4-methoxyphenyl)-methanone) (SDBSO) was designed and synthesized. The introduction of spirobi[dibenzo[b,e][1,4]azasiline] causes the material to retain high triplet energy (over 3.10 eV). In addition, owing to its highly steric and rigid structure and spiro-linkage, SDBSO exhibited good thermal stability and suitable frontier molecular orbital (FMO) energy levels. The RGB (blue, green, and red) three-color phosphorescent organic light-emitting diodes with SDBSO as the host material were fabricated and maximum external quantum efficiencies of over 20% were achieved for the green and red devices with relatively flat roll-off, indicating its potential utility as a host-building block for highly efficient PHOLEDs.

Graphical abstract: Spirobi[dibenzo[b,e][1,4]azasiline]: a novel platform for host materials in highly efficient organic light-emitting diodes

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Nov 2017, accepted on 23 Dec 2017 and first published on 27 Dec 2017


Article type: Paper
DOI: 10.1039/C7TC05031C
Citation: J. Mater. Chem. C, 2018, Advance Article
  •   Request permissions

    Spirobi[dibenzo[b,e][1,4]azasiline]: a novel platform for host materials in highly efficient organic light-emitting diodes

    X. Liu, X. Tang, Y. Zhao, D. Zhao, J. Fan and L. Liao, J. Mater. Chem. C, 2018, Advance Article , DOI: 10.1039/C7TC05031C

Search articles by author

Spotlight

Advertisements