New benzo[b]furans as electroluminescent materials for emitting blue light

Jih Ru Hwu; Kao-Shuh Chuang; Shih Hsien Chuang; Shwu-Chen Tsay

doi:10.1021/ol050196d

New benzo[b]furans as electroluminescent materials for emitting blue light

Org Lett. 2005 Apr 14;7(8):1545-8. doi: 10.1021/ol050196d.

Authors

Jih Ru Hwu¹, Kao-Shuh Chuang, Shih Hsien Chuang, Shwu-Chen Tsay

Affiliation

¹ Organosilicon and Synthesis Laboratory, Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan, ROC. jrhwu@mx.nthu.edu.tw

PMID: 15816748
DOI: 10.1021/ol050196d

Abstract

[structure: see text] New functionalized mono- and bis-benzo[b]furan derivatives were synthesized and developed as blue-light emitting materials. They possessed a CN, CHO, CH=CHPh, CH=CPh(2), or CH=CHCOOH group at the C4-position. Two benzo[b]furan nuclei in bis-benzo[b]furan derivatives were connected by a divinylbenzene bridge. With good volatility and thermal stability, bis-benzo[b]furan 7a was fabricated as a device. It emitted blue light with brightness 53430 cd/m(2) (at 15.5 V) and high maximum external quantum efficiency 3.75% (at 11 V).