Doping Copper(I) in Ag7 Cluster for Circularly Polarized OLEDs with External Quantum Efficiency of 26.7% DOI Open Access
Xing-zhao Ding,

Lin‐Xi Shi,

Jin‐Yun Wang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract Hetero‐metal doping or substitution to create alloy clusters is a highly appealing strategy for improving physicochemical characteristics as well tailoring optical and electronic properties, although high‐yield synthesis of with precise positioning doped metals daunting challenge. Herein, we manifest rational chiral cluster enantiomers R / S ‐Ag 6 Cu in 85 %–87 % yield by replacing one Ag(I) atom Cu(I) homometallic 7 , achieving circularly polarized luminescence (CPL) quantum beyond 90 %. As small energy gap (ca. 0.07 eV) between 1 T states facilitates thermally activated delay fluorescence (TADF) through reverse intersystem crossing (RISC), the photoluminescence (PL) at ambient temperature originates mostly from TADF (85 86 %) place phosphorescence (15 14 %). Relative those copper(I) not only triples PL yields due accelerating ISC (intersystem crossing) RISC, but also doubles CPL asymmetry factors ascribed rigidizing structure stronger Ag−Cu interaction apart dramatically thermodynamic stability. Solution‐processable organic light‐emitting diodes (CP‐OLEDs) demonstrate high‐efficiency electroluminescence (CPEL) external efficiency (EQE) 26.7 %, which superior most red‐emitting OLEDs solution process.

Language: Английский

Dynamic Tracking and Photocatalytic Performance of Single Cd Atom Re‐Doping DOI
Wenjun Liu, He Wang, Xiaoya Zhang

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: April 13, 2025

Abstract The Cd atom is doped into the Au 19 3 (3,5‐DMBT) 18 − (referred to , 3,5‐DMBT = 3,5‐Dimethylbenzenethiol) nanocluster, obtaining obtained a new cluster 4 (3,5‐DMBT)18 )Au . Significantly, kinetic processes of through are studied using traditional time‐dependent UV–vis spectra and ESI‐MS. However, studies limited qualitative analysis due inability harmonize their mass spectral patterns. In this case, thin‐layer chromatography plates (TD‐TLC) introduced study. Benefiting from inclusion TD‐TLC, conversion behavior confirmed be gradual equiproportional. combination with crystal structure doping fourth traced. Finally, significance clusters illustrated help photocatalysis, in which further cadmium atoms leads continuous increase catalytic activity.

Language: Английский

Citations

0
Synergism between copper and silver nanoclusters to originate fascinating structural modifications, properties, and applications DOI
Priyanka Sharma, Mainak Ganguly,

Ankita Doi

et al.

Nanoscale, Journal Year: 2024, Volume and Issue: 16(40), P. 18666 - 18683

Published: Jan. 1, 2024

Development of intriguing structures, physiochemical properties, and applications due to CuAgCN synergism.

Language: Английский

Citations

1
Doping Copper(I) in Ag7 Cluster for Circularly Polarized OLEDs with External Quantum Efficiency of 26.7% DOI
Xiaoyan Ding,

Lin‐Xi Shi,

Jin‐Yun Wang

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Hetero-metal doping or substitution to create alloy clusters is a highly appealing strategy for improving physicochemical characteristics as well tailoring optical and electronic properties, although high-yield synthesis of with precise positioning doped metals daunting challenge. Herein, we manifest rational chiral cluster enantiomers R/S-Ag

Language: Английский

Citations

1
Doping Copper(I) in Ag7 Cluster for Circularly Polarized OLEDs with External Quantum Efficiency of 26.7% DOI Open Access
Xing-zhao Ding,

Lin‐Xi Shi,

Jin‐Yun Wang

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 4, 2024

Abstract Hetero‐metal doping or substitution to create alloy clusters is a highly appealing strategy for improving physicochemical characteristics as well tailoring optical and electronic properties, although high‐yield synthesis of with precise positioning doped metals daunting challenge. Herein, we manifest rational chiral cluster enantiomers R / S ‐Ag 6 Cu in 85 %–87 % yield by replacing one Ag(I) atom Cu(I) homometallic 7 , achieving circularly polarized luminescence (CPL) quantum beyond 90 %. As small energy gap (ca. 0.07 eV) between 1 T states facilitates thermally activated delay fluorescence (TADF) through reverse intersystem crossing (RISC), the photoluminescence (PL) at ambient temperature originates mostly from TADF (85 86 %) place phosphorescence (15 14 %). Relative those copper(I) not only triples PL yields due accelerating ISC (intersystem crossing) RISC, but also doubles CPL asymmetry factors ascribed rigidizing structure stronger Ag−Cu interaction apart dramatically thermodynamic stability. Solution‐processable organic light‐emitting diodes (CP‐OLEDs) demonstrate high‐efficiency electroluminescence (CPEL) external efficiency (EQE) 26.7 %, which superior most red‐emitting OLEDs solution process.

Language: Английский

Citations

0