Metal‐Free Benzothioxanthene Imide Based Dyes for Organic Light‐Emitting Electrochemical Cells DOI Creative Commons
Kwang Keat Leong, Heejung Kim, Korentin Morice

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(36)

Published: Oct. 24, 2024

Abstract Two synthetic organic dyes of the Benzothioxanthene imide (BTI) family are explored as a promising electroactive material for light‐emitting electrochemical cells (LECs). The high thermal stability and ease thin film processing make BTI‐based compounds suitable these devices. However, their planar π‐conjugated structure often leads to aggregation‐caused quenching (ACQ), reducing luminescence in solid state. To overcome this, this study has taken advantage host‐guest interactions with 4,4′‐bis(9H‐carbazol‐9‐yl) biphenyl (p‐CBP), poly(9‐vinylcarbazole) (PVK), poly(dioctylfluorene) (PFO) suppress ACQ. use p‐CBP improved internal electrical double layer (EDL) alignment within film, resulting higher compared PFO PVK‐based LECs. BTI‐F dye, when incorporated into dual host system PFO, achieved an impressive up 3900 cd m −2 . Additionally, enhanced charge balance, contributing blue shift maximum absorption wavelength increasing device's tolerance. A triple‐host (p‐CBP, PVK, PFO) further extended half‐life (t 1/2 ) 54 min, demonstrating potential systems advancing metal‐free LEC technology.

Language: Английский

Response Surface Method (RSM) Process Optimization of Sulfides Oxidation in the Presence of Orange Peel Extract Immobilized Magnetic Hybrid Nanocomposite Catalyst DOI Open Access
Taiebeh Tamoradi, Amanollah Zarei Ahmady, Bikash Karmakar

et al.

Applied Organometallic Chemistry, Journal Year: 2025, Volume and Issue: 39(3)

Published: Feb. 5, 2025

ABSTRACT The oxidative transformation of sulfides to sulfoxides over magnetic green catalysts is one the most important applications in pharmaceuticals. In this report, we demonstrate step‐by‐step fabrication and synthesis CoFe 2 O 4 , CuFe Fe 3 nanocomposite modified with orange peel extract complexes as advanced high‐performance materials. One goals project was use phenolic acid phytochemicals catalytic process. newly synthesized nanocomposites were characterized by several analytical methods. Utilizing Box–Behnken experimental design response surface methodology (RSM), reaction parameters such amount catalyst, hydrogen peroxide, duration improved. Furthermore, without experiencing a discernible loss reactivity sulfide oxidation reaction, effortlessly magnetically retrieved may be employed repeatedly.

Language: Английский

Citations

0
Synergistic catalytic performance of g-C3N4/porphyrin composite: Synthesis, characterization, and applications in aerobic photooxidation of sulfides DOI
Saeed Rayati,

Hamideh Bathaee,

Alireza Badiei

et al.

Journal of Molecular Structure, Journal Year: 2025, Volume and Issue: unknown, P. 141695 - 141695

Published: Feb. 1, 2025

Language: Английский

Citations

0
Deciphering the Knoevenagel Condensation: Towards a Catalyst-free and Water-mediated Process DOI Creative Commons

Periklis X. Kolagkis,

Stamatis K. Serviou,

Naya A. Stini

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

The Knoevenagel condensation constitutes one of the most well-studied and crucial transformations in organic chemistry, since it facilitates synthesis numerous valuable compounds. With advent green several alternative protocols for reaction have been introduced catalyst-free approaches to also mentioned, however harsh temperatures employed limited substrate scope restricted their application. Herein, we performed an extensive study on water-mediated reaction, with specific focus optimising parameters metrics our methodology. Additionally, directly compared approach previous methods, while providing a fast assembly multiple compounds parallel.

Language: Английский

Citations

3
Metal‐Free Benzothioxanthene Imide Based Dyes for Organic Light‐Emitting Electrochemical Cells DOI Creative Commons
Kwang Keat Leong, Heejung Kim, Korentin Morice

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: 12(36)

Published: Oct. 24, 2024

Abstract Two synthetic organic dyes of the Benzothioxanthene imide (BTI) family are explored as a promising electroactive material for light‐emitting electrochemical cells (LECs). The high thermal stability and ease thin film processing make BTI‐based compounds suitable these devices. However, their planar π‐conjugated structure often leads to aggregation‐caused quenching (ACQ), reducing luminescence in solid state. To overcome this, this study has taken advantage host‐guest interactions with 4,4′‐bis(9H‐carbazol‐9‐yl) biphenyl (p‐CBP), poly(9‐vinylcarbazole) (PVK), poly(dioctylfluorene) (PFO) suppress ACQ. use p‐CBP improved internal electrical double layer (EDL) alignment within film, resulting higher compared PFO PVK‐based LECs. BTI‐F dye, when incorporated into dual host system PFO, achieved an impressive up 3900 cd m −2 . Additionally, enhanced charge balance, contributing blue shift maximum absorption wavelength increasing device's tolerance. A triple‐host (p‐CBP, PVK, PFO) further extended half‐life (t 1/2 ) 54 min, demonstrating potential systems advancing metal‐free LEC technology.

Language: Английский

Citations

0