Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/7093
Title: | Hydrogen bond-driven columnar self-assembly of electroluminescent D–A–D configured cyanopyridones |
Authors: | Vinayakumara, D.R. Ulla, Hidayath Kumar, Sandeep Pandith, Anup Satyanarayan, M N Rao, Shankar D.S. Prasad, Krishna S. Adhikari, A.V. |
Issue Date: | Jul-2018 |
Publisher: | Royal Society of Chemistry |
Citation: | Journal of Materials Chemistry C, 2018, Vol.6, p7385-7399 |
Abstract: | Herein, we report the design and synthesis of a new series of flying bird-shaped liquid crystalline (LC) cyanopyridone derivatives with a D–A–D architecture, CPO-1 to CPO-4. Their mesomorphic, photophysical, electrochemical, and electroluminescence characteristics have been investigated in detail. Here, the H-bonding interactions through a central lactam core were shown to be the key driving force for their self-assembly into columnar mesophases. The key role of H-bonding has been confirmed by using newly synthesized similar shaped compounds, MCP-1 to MCP-3. New CPO mesogens were found to be intense greenish blue light emitters with narrow band-gap energies. Conclusions were drawn based on theoretical studies also. Finally, the application potential of the selected mesogen CPO-2 as an emissive material has been demonstrated for the fabrication of doped and non-doped OLED devices with different device architectures, which displayed encouraging results. In fact, this is the first report on the use of emissive H-bond-assisted columnar liquid crystals in devices. The present results provide a new guideline and a versatile approach to the design of new LC molecules for the fabrication of efficient OLEDs. |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/7093 |
ISSN: | 2050-7526 |
Alternative Location: | https://pubs.rsc.org/en/content/articlelanding/2018/tc/c8tc01737a#!divAbstract |
Copyright: | 2018 Royal Society of Chemistry |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2018_J Materials Chem C_Vol.6_p7385--7399.pdf Restricted Access | Restricted Access | 10 MB | Adobe PDF | View/Open Request a copy |
2018_J Materials Chem C_Vol.6_p7385--7399_Supp Information.pdf Restricted Access | Restricted Access | 1.48 MB | Adobe PDF | View/Open Request a copy |
Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.