Carbon Nanodots with Nearly Unity Fluorescent Efficiency Realized via Localized Excitons

Autor:	Qing Lou, Qingchao Ni, Chunyao Niu, Jianyong Wei, Zhuangfei Zhang, Weixia Shen, Chenglong Shen, Chaochao Qin, Guangsong Zheng, Kaikai Liu, Jinhao Zang, Lin Dong, Chong‐Xin Shan
Jazyk:	angličtina
Rok vydání:	2022
Předmět:	carbon nanodot light‐emitting diode localized exciton symmetry breaking Science
Zdroj:	Advanced Science, Vol 9, Iss 30, Pp n/a-n/a (2022)
Druh dokumentu:	article
ISSN:	2198-3844
DOI:	10.1002/advs.202203622
Popis:	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 for CDs. Herein, CDs with near‐unity emission efficiency are prepared via atomic condensation of doped pyrrolic nitrogen, which can highly localize the excited states thus lead to the formation of bound excitons and the symmetry break of the π–electron conjugation. The short radiative lifetimes (
Databáze:	Directory of Open Access Journals
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