典型文献
Ultraviolet phosphorescent carbon nanodots
文献摘要：
Phosphorescent carbon nanodots(CNDs)have generated enormous interest recently,and the CND phosphorescence is usually located in the visible region,while ultraviolet(UV)phosphorescent CNDs have not been reported thus far.Herein,the UV phosphorescence of CNDs was achieved by decreasing conjugation size and in-situ spatial confinement in a NaCNO crystal.The electron transition from the Px to the sp2 orbit of the N atoms within the CNDs can generate one-unit orbital angular momentum,providing a driving force for the triplet excitons population of the CNDs.The confinement caused by the NaCNO crystal reduces the energy dissipation paths of the generated triplet excitons.By further tailoring the size of the CNDs,the phosphorescence wavelength can be tuned to 348 nm,and the room temperature lifetime of the CNDs can reach 15.8 ms.As a demonstration,the UV phosphorescent CNDs were used for inactivating gram-negative and gram-positive bacteria through the emission of their high-energy photons over a long duration,and the resulting antibacterial efficiency reached over 99.9％.This work provides a rational design strategy for UV phosphorescent CNDs and demonstrates their novel antibacterial applications.
文献关键词：
中图分类号：
作者姓名：
Shi-Yu Song;Kai-Kai Liu;Qing Cao;Xin Mao;Wen-Bo Zhao;Yong Wang;Ya-Chuan Liang;Jin-Hao Zang;Qing Lou;Lin Dong;Chong-Xin Shan
作者机构：
Henan Key Laboratory of Diamond Optoelectronic Material and Devices,Key Laboratory of Material Physics,Ministry of Education,School of Physics and Microelectronics,Zhengzhou University,Zhengzhou 450001,China
文献出处：
引用格式：
[1]Shi-Yu Song;Kai-Kai Liu;Qing Cao;Xin Mao;Wen-Bo Zhao;Yong Wang;Ya-Chuan Liang;Jin-Hao Zang;Qing Lou;Lin Dong;Chong-Xin Shan-.Ultraviolet phosphorescent carbon nanodots)[J].光：科学与应用（英文版）,2022(06):1274-1284
A类：
Phosphorescent,NaCNO
B类：
Ultraviolet,phosphorescent,carbon,nanodots,CNDs,have,generated,enormous,interest,recently,phosphorescence,usually,located,visible,region,while,ultraviolet,UV,not,been,reported,thus,far,Herein,was,achieved,by,decreasing,conjugation,size,situ,spatial,confinement,crystal,electron,transition,from,Px,sp2,atoms,within,can,one,unit,orbital,angular,momentum,providing,driving,force,triplet,excitons,population,caused,reduces,energy,dissipation,paths,By,further,tailoring,wavelength,tuned,room,temperature,lifetime,demonstration,were,inactivating,gram,negative,positive,through,emission,their,high,photons,over,long,duration,resulting,antibacterial,efficiency,reached,This,work,provides,rational,design,strategy,demonstrates,novel,applications
AB值：
0.544131
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
