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Synlett 2022; 33(14): 1419-1425
DOI: 10.1055/a-1771-9389
DOI: 10.1055/a-1771-9389
cluster
Organic Chemistry in Thailand
Chrysene-Cored Fluorescent Dendrimers as Nondoped Deep-Blue Emitters for Solution-Processable Electroluminescent Devices
Many thanks for financial support go to the NANOTEC, NSTDA, Ministry of Higher Education, Science, Research and Innovation, Thailand, through its program of the Research Network National Nanotechnology Center. We also acknowledge a postdoctoral fellowship (to T.S.) and a Ph.D. scholarship (to J.C.) from the Vidyasirimedhi Institute of Science and Technology.
Abstract
New solution-processable chrysene-basked deep-blue fluorescent dendrimers consisting of chrysene as a core end-capped by carbazole dendrons were designed, synthesized, and characterized. These dendrimers exhibit strong deep-blue emissions in solution or thin-film states with decent hole mobility and high thermal and electrochemical stability. They can be effectively used as nondoped emitters in organic light-emitting diodes (OLEDs). The nondoped OLEDs, which have a simple structure, showed good electroluminescence (EL) performance (luminance: 2334–2400 cd m–2; external quantum efficiency: 1.88-2.51%; turn-on voltage: 3.8–4.0 V) and deep-blue EL spectra (CIE y: 0.065–0.075) with a narrow full width at half maximum of 61–65 nm.
Key words
chrysene - dendrimers - fluorescence - organic light-emitting diodes - electroluminescenceSupporting Information
- Supporting information for this article is available online at https://doi.org/10.1055/a-1771-9389.
- Supporting Information
Publication History
Received: 13 January 2022
Accepted after revision: 15 February 2022
Accepted Manuscript online:
15 February 2022
Article published online:
28 April 2022
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