Facile fabrication of a single-particle platform with high throughput via substrate surface potential regulated large-spacing nanoparticle assembly  

作　　者：Dong Li Yinghui Sun Yawen Wang Yuanlan Liu Bo Zhao Wenkai Liang Heng Gao Lin Jiang 

机构地区：[1]Institute of Functional Nano and Soft Materials(FUNSOM),Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices,Soochow University,Suzhou 215123,China [2]College of Energy,Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province,Soochow University,Suzhou 215006,China

出　　处：《Nano Research》2022年第7期6713-6720,共8页纳米研究（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.21822202 and 22072104);the National Key R&D Program of China(International Collaboration program)granted by the Chinese Ministry of Science and Technology(No.2018YFE0200700).

摘　　要：Nanodevices based on the single nanoparticle represent innovative and promising technology,which could satisfy the increasing requirements of high accuracy,low energy consumption,and small volume.However,the acquisition of single particles involves complex operation,and the corresponding nanodevices display low-throughput.Herein,we present a facile strategy to construct a single-particle platform with high throughput via substrate surface potential modulated a large-area and large-spacing nanoparticle assembly.Such platform not only avoids optic interference but also ensures the independent electrically conductive channel of single particle on substrate.Therefore,the dark-field microscopic imaging and single-particle scattering signals collecting of individual nanoparticles with plasmonic effect are satisfactory achieved based on the platform,and the first success in the fabrication of nano-organic-light-emitting-diodes with single nanoparticle resolution in nanoscale.All the results indicate that the strategy may find promising applications in the in situ single-particle research such as single-particle detection,singleparticle catalysis,and optoelectronics.

关 键 词：single particle NANODEVICES electrostatic self-assembly substrate surface potential 

分 类 号：TB3[一般工业技术—材料科学与工程]