Effects of molecular ordering on circularly polarized emission from a twisted mesogenic conjugated polymer

Lee, Dong-Min; Kim, Gi-Eun; Kim, Jae-Hoon; Yu, Chang‐Jae

doi:10.1039/d2tc04814k

J. Mater. Chem. C

2023

DOI: 10.1039/d2tc04814k

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Effects of molecular ordering on circularly polarized emission from a twisted mesogenic conjugated polymer

Dong-Min Lee

Gi-Eun Kim

Jae-Hoon Kim

et al.

Abstract: Circularly polarized (CP) photoluminescence and electroluminescence (EL) generated from the emitting layer can improve the light efficiency of a commercialized organic light-emitting display. High CP emission is generated from the...

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Chiral Helical Polymer‐Induced Efficient Circularly Polarized Organic Light‐Emitting Diodes

Wang,

Yang,

Wang

et al. 2023

Advanced Optical Materials

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Circularly polarized organic light‐emitting diodes (CP‐OLEDs) have attracted tremendous attention, but constructing CP‐OLEDs with both high electroluminescence dissymmetry factors (gEL) and good device performance remains a big challenge. The present work reports the first CP‐OLEDs by using chiral helical polymers as inducers to trigger efficient CP electroluminescence from achiral conjugated polymers. The successful preparation of CP‐OLEDs based on two chiral helical polymers further demonstrates the universality of the established strategy. Benefiting from the high helical twisting power of the chiral helical polymer, a maximum |gEL| value of 2.0 × 10−2 is obtained in the resulting CP‐OLEDs. Moreover, by adopting an inverted device structure, the device performance of the CP‐OLEDs is significantly improved, with a maximum brightness of 49340/51973 cd m−2, high current efficiency of 5.62/5.44 cd A−1, and low turn‐on voltage of 3.1/3.1 V, respectively. The work offers new insights into fabricating CP‐OLEDs by taking advantage of chiral helical polymers.

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Chiral Helical Polymer‐Induced Efficient Circularly Polarized Organic Light‐Emitting Diodes

Wang,

Yang,

Wang

et al. 2023

Advanced Optical Materials

View full text Add to dashboard Cite

show abstract

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Effects of molecular ordering on circularly polarized emission from a twisted mesogenic conjugated polymer

Abstract: Circularly polarized (CP) photoluminescence and electroluminescence (EL) generated from the emitting layer can improve the light efficiency of a commercialized organic light-emitting display. High CP emission is generated from the...

Cited by 1 publication

References 25 publications

Chiral Helical Polymer‐Induced Efficient Circularly Polarized Organic Light‐Emitting Diodes

Chiral Helical Polymer‐Induced Efficient Circularly Polarized Organic Light‐Emitting Diodes

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