Upconversion-Enabled In Situ Growth of Silver Nanostructures Mediated by Cavity Resonance in Single Microrod

He, Huilin1,2; Liu, Jianxun2; Li, Ke2; Xu, Yiwei2; Cai, Wenfeng2; Wang, Jiawei2; Cen, Mengjia2; Liu, Yan Jun2

2022-04-01

10.1002/admi.202200029

Advanced Materials Interfaces   影响因子和分区

2196-7350

Solution-based photochemical reaction is widely utilized in the syntheses of metallic nanocrystals. Although seedless photochemical reaction can avoid pre-treatments, it relies on long, high-energy radiation. Here, this work demonstrates an upconversion-enabled seedless photochemical approach to synthesize grating-like silver nanostructures on a hexagonal NaYF4 microrod via a near-infrared laser excitation. Experimental results show that upconversion emission enables the nucleation and growth of Ag nanoparticles. Meanwhile, the emission can be also precisely tuned and enhanced by in situ growth of silver nanoparticles on the NaYF4 and NaYF4@SiO2 microrods. The maximum enhancement factor of 2 in overall emissions is achieved for the NaYF4@SiO2 microrod. This fabrication approach and results visually confirm the cavity resonance of excitation light inside the microrod via the distribution of Ag nanostructures. Moreover, the in situ grown Ag nanostructures provide a tunable far-field upconversion emission via the plasmonic effect, which is potentially useful for tunable microlasers, biosensing, antibacterial, and catalytic applications.

hexagonal cavity in situ growth photochemical reaction plasmonic nanostructures upconversion microrod

SCI ; EI

英语

通讯

National Natural Science Foundation of China[62075093] ; Guangdong Innovative and Entrepreneurial Research Team Program[2017ZT07C071] ; Natural Science Foundation of Guangdong Province[2019A1515110864] ; Shenzhen Science and Technology Innovation Commission["GJHZ20180928155207206","JCYJ20180305180635082","JCYJ20170817111349280"]

Chemistry ; Materials Science

Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary

WOS:000784039400001

WILEY

20221612006757

Fluorine compounds ; Infrared devices ; Infrared lasers ; Laser excitation ; Metal nanoparticles ; Plasmonics ; Silica ; Silicon ; Silver nanoparticles ; SiO2 nanoparticles ; Yttrium compounds

Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Lasers, General:744.1 ; Laser Applications:744.9 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Plasma Physics:932.3

Web of Science

1.Harbin Inst Technol, Harbin 150001, Peoples R China
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

He, Huilin,Liu, Jianxun,Li, Ke,et al. Upconversion-Enabled In Situ Growth of Silver Nanostructures Mediated by Cavity Resonance in Single Microrod[J]. Advanced Materials Interfaces,2022,9.

He, Huilin.,Liu, Jianxun.,Li, Ke.,Xu, Yiwei.,Cai, Wenfeng.,...&Liu, Yan Jun.(2022).Upconversion-Enabled In Situ Growth of Silver Nanostructures Mediated by Cavity Resonance in Single Microrod.Advanced Materials Interfaces,9.

He, Huilin,et al."Upconversion-Enabled In Situ Growth of Silver Nanostructures Mediated by Cavity Resonance in Single Microrod".Advanced Materials Interfaces 9(2022).