| Autor: |
Yuhua Hou, Yanfeng Fang, Zhixin Zhou, Qing Hong, Wang Li, Hong Yang, Kaiqing Wu, Yuan Xu, Xuwen Cao, Dan Han, Songqin Liu, Yanfei Shen, Yuanjian Zhang |
| Rok vydání: |
2022 |
| DOI: |
10.26434/chemrxiv-2022-ghvtt |
| Popis: |
Electrochemically generated chemiluminescence (ECL) has attracted significant interest over decades, ranging from fundamental studies of highly efficient electron-to-photon interconversion to practical bioassays. Nonetheless, the ECL efficiency of most emitters is low, which greatly hampers further development. Herein, we report a highly robust carbon nitride film with an unusually boosted ECL efficiency (2256 times higher than that of the reference Ru(bpy)3Cl2/K2S2O8. Double inoculation, which provided the primary interaction of carbon nitride with the substrate and the succedent growth, played a crucial role in preparation. The improved ECL efficiency was ascribed to few pinholes suppressing futile co-reagent reduction, maintenance of more orbit-delocalized heptazine subunit improving ECL kinetics, and transparency avoiding self-absorption. As a result of the exceptionally high ECL efficiency, an ultrasensitive visual DNA biosensor by the naked eye was further successfully developed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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