Pure blue emitters based on benzo[4,5]thieno-S,S-dioxide-[3,2-b]benzofuran with high thermal stability

Ai, Liankun; Xie, Xin; Li, Baolin; Wang, Ying

doi:10.1016/j.dyepig.2023.111153

Cited by 5 publications

(1 citation statement)

References 50 publications

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“…This is the first report on all solution-processed OLEDs based on BTOBF building blocks. When compared with the vacuum-processed OLEDs that have been used, our solution-processed OLED showed comparable performance in terms of turn-on voltage. The typical turn-on voltages of analog devices with BTOBF derivatives as active layers range from 3.6 to 4.2 V as they use 5 layers vacuum-processed with doped emissive layer with 3,3′-Di(9H-carbazol-9-yl)-1,1′-biphenyl (mCBP) as a host material in comparison with our devices which are 3 layers solution processed in air without any doping and the evaporated cathode.…”

Section: Resultsmentioning

confidence: 99%

Streamlined Access to Substituted Benzothieno-S,S-Dioxide-Benzofuran (BTOBF): Properties and Application in Solution-Processed Organic Light-Emitting Diodes

Youssef,

Gasonoo,

Allain

et al. 2024

ACS Appl. Opt. Mater.

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Utilizing a streamlined five-step synthesis process, we have successfully produced a diverse set of adjustable benzo [4,5]thieno-S,S-dioxide-[3,2-b]benzofurans-based compounds via Michael's addition−elimination reaction, Suzuki-Miyaura coupling, and intramolecular oxidative C−H/C−H coupling, in 70−90% yields. The synthetic strategy employed demonstrates that the compounds can be modified on either side by introducing various types of groups at positions 2 and 3, with the possibility of extending the aromatic portion in place of benzofuran. Thus, these compounds exhibit a distinctive dual-state emission, showcasing very good quantum yields up to 63% in the solid state and 83% in solution. Additionally, these compounds were integrated into ambient conditions and solution-processed, nondoped OLEDs, demonstrating promising results with a luminance of 850 cd/m 2 and a turn-on voltage of 3.50 V.

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Section: Resultsmentioning

confidence: 99%

Streamlined Access to Substituted Benzothieno-S,S-Dioxide-Benzofuran (BTOBF): Properties and Application in Solution-Processed Organic Light-Emitting Diodes

Youssef,

Gasonoo,

Allain

et al. 2024

ACS Appl. Opt. Mater.

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Synthesis and Applications of Benzothienobenzofurans: A Review

Krishnan R.,

S. K.,

Hopf

et al. 2024

Eur J Org Chem

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Heteroacenes are considered as an important class of compounds for material applications due to their stability, electron‐richness and tunable properties. Mostly, four ring containing heteroacenes have found immense applications in organic electronic devices and some of them have been successfully commercialized. One such class of heteroacene are benzothienobenzofuran for which four different isomers are reported to date based on the position where the benzothiophene unit is fused to the benzofuran ring. The available literature claims different synthetic strategies towards the benzothienobenzofurans starting from multistep synthesis to tandem transformations, electrochemical synthesis and annulations. Different metal catalyzed transformations including Pd‐catalyzed dual C‐H activations, Ullmann coupling, dual metal‐catalyzed one‐pot processes etc. are reported for the synthesis of different isomers of benzothienobenzofurans. The present review analyses all the synthetic methodologies reported for the preparation of the four isomers and examines the generality of each method by highlighting its advantages and disadvantages. We discuss all available mechanisms of the reactions for the benefit of the readers. Finally, the existing basic photophysical properties of benzothienobenzofurans and their limited applications in fabricating devices for organic light‐emitting diode (OLED), organic field‐effect transistor (OFET), and organic phototransistor (OPT) uses are deliberated

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AIE active blue light emitting pyridine functionalized quinoxaline and pyridopyrazine derivatives exhibiting reversible acidofluorochromism and thermal sensitivity

Lamoria,

Manna,

Milton

2025

Journal of Molecular Structure

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Pure blue emitters based on benzo[4,5]thieno-S,S-dioxide-[3,2-b]benzofuran with high thermal stability

Cited by 5 publications

References 50 publications

Streamlined Access to Substituted Benzothieno-S,S-Dioxide-Benzofuran (BTOBF): Properties and Application in Solution-Processed Organic Light-Emitting Diodes

Streamlined Access to Substituted Benzothieno-S,S-Dioxide-Benzofuran (BTOBF): Properties and Application in Solution-Processed Organic Light-Emitting Diodes

Synthesis and Applications of Benzothienobenzofurans: A Review

AIE active blue light emitting pyridine functionalized quinoxaline and pyridopyrazine derivatives exhibiting reversible acidofluorochromism and thermal sensitivity

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