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Complementary Hydrogen Bonding Interaction-Mediated Hole Injection in Organic Light-Emitting Devices


Nucleobase-functionalized conjugated polymers (NCPs) utilize molecular self-assembly to spontaneously arrange into three-dimensional supramolecular polymer networks through complementary multiple hydrogen bonding interactions. NCPs behave as a highly efficient optoelectronic material with substantially enhanced overall physical properties, making them highly attractive for a wide range of optical and electronic applications. Due to the ease of varying the extent of the reversible network by tuning the complementary base pairing content, these newly-developed NCPs could be easily tailored to meet specific requirements with respect to thermal stability, optical properties and energy band gaps for fabrication of organic light emitting diode (OLED) devices. When NCPs were employed as the hole injection layer (HIL) in a solution-processed three-layer OLED device, a low turn-on voltage (2.9 V), maximum brightness as high as ~52,000 cd/m2 and luminous efficiency of 9.7 cd/A were achieved; these values were much higher than control samples and conventional HIL-based devices. Thus, this new system provides a new direction to further improve the hole-injection ability of conjugated polymers and hence offers opportunities towards the design and development of high-performance multilayer OLED devices.

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Publication details

The article was received on 15 Feb 2017, accepted on 13 Apr 2017 and first published on 13 Apr 2017

Article type: Paper
DOI: 10.1039/C7TC00693D
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
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    Complementary Hydrogen Bonding Interaction-Mediated Hole Injection in Organic Light-Emitting Devices

    C. Cheng, C. W. Chu, J. Huang and Z. Liao, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC00693D

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