Bifunctional Heterocyclic Spiro Derivatives for Organic Optoelectronic Devices

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Yi-Chun Wong
  • Mei-Yee Chan
  • Sin-Hang Cheung
  • Shu-Kong So
  • Vivian Wing-Wah Yam

Detail(s)

Original languageEnglish
Pages (from-to)24782-24792
Number of pages11
Journal / PublicationACS Applied Materials and Interfaces
Volume8
Issue number37
Online published6 Sept 2016
Publication statusPublished - 21 Sept 2016
Externally publishedYes

Abstract

A series of heterocyclic spiro derivatives has been successfully synthesized and characterized by photophysical and electrochemical studies. Taking advantage of their excellent hole-transporting properties, highly efficient small-molecular organic photovoltaic devices based on these heterocyclic compounds as donors with very low dopant concentrations have been prepared; particularly, a high open-circuit voltage of up to 1.10 V and a power conversion efficiency of up to 5.12% have been realized. In addition, most of these heterocyclic spiro derivatives are found to be highly emissive in solutions with photoluminescence quantum yields of up to 0.91, and high-performance deep-blue-emitting organic light-emitting diodes (OLEDs) have been achieved. Such devices exhibit a stable deep blue emission with CIE coordinates of (0.16, 0.04) and high external quantum efficiencies of up to 4.7%, which is one of the best values among the reported OLEDs with CIEy < 0.08.

© 2016 American Chemical Society

Research Area(s)

  • bifunctional materials, heterocyclic, organic light-emitting diodes, organic photovoltaics, spiro

Bibliographic Note

Publisher Copyright: © 2016 American Chemical Society.

Citation Format(s)

Bifunctional Heterocyclic Spiro Derivatives for Organic Optoelectronic Devices. / Chan, Chin-Yiu; Wong, Yi-Chun; Chan, Mei-Yee et al.
In: ACS Applied Materials and Interfaces, Vol. 8, No. 37, 21.09.2016, p. 24782-24792.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review