Multielementary Alloy Chiral Nanoparticles with Strong Optical Activities

Ma, Yicong1; Yang, Lin2; Hu, Xiangchen3; Zhang, Miao4,5,6,7; Qu, Geping8; Bai, Xiaopeng9; Sun, Haifeng10; Zhu, Feng4,5,6,7; Zhong, Xiaoyan4,5,6,7; Chen, Xiao10; Xu, Zongxiang8; Yu, Yi3; Huang, Zhifeng1,10

2023-07-01

10.1002/adom.202300696

ADVANCED OPTICAL MATERIALS   Impact Factor & Quartile

2195-1071

Structural chirality has been imposed onto nano-alloys to introduce diverse new properties. Chiral nanoparticles (CNPs) with the atomic scale chirality are composed of metastable chiral lattices having low thermal stability, so multielementary (>2 elements) CNPs are very challenging to produce using traditional high-energy fabrication methods. Herein, layer-by-layer glancing angle deposition (LbL-GLAD) at a low substrate temperature of & AP;-40 & DEG;C, consisting of GLAD of the host CNPs and the subsequent GLAD of guests, is devised to extend the alloy compositional space to the ternary (e.g., Ag:Al:Cu and Ag:Al:Au) and quaternary (e.g., Ag:Al:Cu:Au and Al:In:Sn:Ti). The low-temperature GLAD-induced alloying facilitates the formation of the metastable multi-layer chiral twisting of achiral facets, chiral defects due to the diffusion of the guests, and chiral electronic bands, leading to a significant amplification of chiroplasmonic optical activities in 20-30 folds. The LbL-GLAD can be generally adapted to fabricate multielementary alloy CNPs composed of a wide range of elements, with a prospective application of asymmetric catalysts to synthesize an enantiomer with designable chirality, one of the most important topics in modern chemistry and biochemistry to solve the problems of health and environmental pollution.

chiral lattices chiral nanoparticles chiroplasmonic optical activities glancing angle deposition multielementary alloys

SCI

English

Others

null[22075239] ; null[12302320] ; null[12301321] ; null[4053558] ; null[SGDX20210823104205034] ; null[2021A1515010045] ; null[52171014] ; null[52011530124] ; null[HZQB-KCZYB-2020031] ; null[SGDX20210823104200001] ; null[JCYJ20210324134402007] ; null[M-0265] ; null[E-CityU101/20] ; null[G-CityU102/20] ; null[CityU 11302121] ; null[CityU 11309822] ; null[ITS/365/21] ; null[856538] ; null[9610484] ; null[9680291] ; null[9678288] ; null[9610607]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:001028358300001

WILEY-V C H VERLAG GMBH

Web of Science

1.Hong Kong Baptist Univ HKBU, Dept Phys, Kowloon Tong, Hong Kong, Peoples R China
2.HKBU Inst Res & Continuing Educ, Shenzhen 518057, Guangdong, Peoples R China
3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
4.City Univ Hong Kong, TRACE EM Unit, Kowloon, Hong Kong, Peoples R China
5.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong, Peoples R China
6.City Univ Hong Kong, Matter Sci Res Inst Futian, Shenzhen 518048, Peoples R China
7.City Univ Hong Kong, Nanomfg Lab NML, Shenzhen Res Inst, Shenzhen 518057, Peoples R China
8.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China
9.Chinese Univ Hong Kong, Dept Phys, Shatin, Hong Kong, Peoples R China
10.Chinese Univ Hong Kong, Dept Chem, Shatin, Hong Kong, Peoples R China

Ma, Yicong,Yang, Lin,Hu, Xiangchen,et al. Multielementary Alloy Chiral Nanoparticles with Strong Optical Activities[J]. ADVANCED OPTICAL MATERIALS,2023.

Ma, Yicong.,Yang, Lin.,Hu, Xiangchen.,Zhang, Miao.,Qu, Geping.,...&Huang, Zhifeng.(2023).Multielementary Alloy Chiral Nanoparticles with Strong Optical Activities.ADVANCED OPTICAL MATERIALS.

Ma, Yicong,et al."Multielementary Alloy Chiral Nanoparticles with Strong Optical Activities".ADVANCED OPTICAL MATERIALS (2023).