Carbon Nanodots with Nearly Unity Fluorescent Efficiency Realized via Localized Excitons DOI
Qing Lou,

Qingchao Ni,

Chunyao Niu

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(30)

Published: Aug. 24, 2022

Abstract Carbon nanodots (CDs) have emerged as an alternative option for traditional nanocrystals due to their excellent optical properties and low toxicity. Nevertheless, high emission efficiency is a long‐lasting pursuit CDs. Herein, CDs with near‐unity are prepared via atomic condensation of doped pyrrolic nitrogen, which can highly localize the excited states thus lead formation bound excitons symmetry break π –electron conjugation. The short radiative lifetimes (<8 ns) diffusion lengths (<50 nm) imply that be efficiently localized by recombination centers defect‐insensitive By incorporating into polystyrene, flexible light‐converting films solid‐state quantum 84% good resistance water, heating, UV light obtained. With CD–polymer conversion layers, CD‐based white light‐emitting diodes (WLEDs) luminous 140 lm W −1 flat‐panel illumination system lighting sizes more than 100 cm 2 achieved, matching state‐of‐the‐art nanocrystal‐based LEDs. These results pave way toward carbon‐based luminescent materials technology.

Language: Английский

Ultrafast hot electron transfer and trap-state mediated charge separation for boosted photothermal-assisted photocatalytic H2 evolution DOI
Hao Yuan,

Haoyuan Qin,

Kaiqu Sun

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153058 - 153058

Published: June 13, 2024

Language: Английский

Citations

18
Novel strategy of multidimensional information encryption via multi-color carbon dots aggregation-induced emission DOI

Liu Ding,

Xilang Jin, Yuchong Gao

et al.

Nano Research, Journal Year: 2024, Volume and Issue: 17(6), P. 5680 - 5687

Published: March 4, 2024

Language: Английский

Citations

17
Iron-doped carbon dots nanozyme scavenged reactive oxygen species system for inhibiting effectively the uptake of arsenic in lettuce DOI

Meihua Xie,

Feiyu Li, Yueying Li

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159956 - 159956

Published: Jan. 1, 2025

Language: Английский

Citations

2
Nitrogen-doped carbon dots coupled with morin-Al3+: Cleverly design an integrated sensing platform for ratiometric optical dual-mode and smartphone-assisted visual detection of fluoride ion DOI

Yumin Hao,

Wenjuan Dong, Yang Liu

et al.

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 439, P. 129596 - 129596

Published: July 13, 2022

Language: Английский

Citations

54
Carbon Nanodots with Nearly Unity Fluorescent Efficiency Realized via Localized Excitons DOI
Qing Lou,

Qingchao Ni,

Chunyao Niu

et al.

Advanced Science, Journal Year: 2022, Volume and Issue: 9(30)

Published: Aug. 24, 2022

Abstract Carbon nanodots (CDs) have emerged as an alternative option for traditional nanocrystals due to their excellent optical properties and low toxicity. Nevertheless, high emission efficiency is a long‐lasting pursuit CDs. Herein, CDs with near‐unity are prepared via atomic condensation of doped pyrrolic nitrogen, which can highly localize the excited states thus lead formation bound excitons symmetry break π –electron conjugation. The short radiative lifetimes (<8 ns) diffusion lengths (<50 nm) imply that be efficiently localized by recombination centers defect‐insensitive By incorporating into polystyrene, flexible light‐converting films solid‐state quantum 84% good resistance water, heating, UV light obtained. With CD–polymer conversion layers, CD‐based white light‐emitting diodes (WLEDs) luminous 140 lm W −1 flat‐panel illumination system lighting sizes more than 100 cm 2 achieved, matching state‐of‐the‐art nanocrystal‐based LEDs. These results pave way toward carbon‐based luminescent materials technology.

Language: Английский

Citations

42