化学
电化学发光
发光
激进的
硼
电化学
光化学
纳米技术
光电子学
电极
色谱法
物理化学
有机化学
检出限
物理
材料科学
作者
Zhengang Han,Lei Zhu,Lijun Zhang,Jiangyun Song,Yunfeng Bai,Xiaoquan Lu
标识
DOI:10.1021/acs.analchem.4c01411
摘要
Radicals can feature theoretically 100% light utilization owing to their nonelectron spin-forbidden transition and represent the most advanced luminescent materials at present. 2,2,6,6-Tetramethyl-1-piperidinyloxy (TEMPO) acts as a typically stable radical with very broad applications. However, their luminescent properties have not been discovered to date. In the present work, we observed the bright electrochemiluminescence (ECL) emission of TEMPO with a higher efficiency (72.3%) via the electrochemistry and coreactant strategies for the first time. Moreover, the radical-based ECL achieved high detection toward boron acid with a lower limit of detection (LOD) of 1.9 nM. This study offers a new approach to generate emissions for some unconventional luminophores and makes a major breakthrough in the field of new luminescent materials as well.
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