Fabricating an Ordered Array of Silver Nanoparticles $via$ the Nanosphere Lithography Technique
R. B. Abdulrahman
Department of Physics, College of Science, University of Kirkuk, IQ-36001 Kirkuk, Iraq
Получена: 14.10.2023; окончательный вариант - 15.11.2023. Скачать: PDF
The challenge of new technology is to produce inventive optical nanogratings, optical nanofilters, solar cell nanoabsorbers, antireflective surface coatings, and nanoelectronics by generating consistent patterns of various sizes and shapes of nanostructure on the smooth and solid surfaces. Nanosphere lithography (NSL) is a cost-effective and easy-to-implement technology that can be used to produce a diverse range of highly ordered nanoparticle-array structures. In this work, physical vapour deposition is used to grow large periodic arrays of silver nanoparticles and nanorings on patterned glass and silicon substrates. To achieve this, a single layer of self-assembled polystyrene nanospheres is firstly applied to the substrate to serve as a mask, and silver is then deposited through the mask. The spacing between the nanospheres can be adjusted by changing the diameter of the polystyrene nanospheres, which affects how the silver is deposited as nanodots or nanorings. The optical transmittance spectra of glass arrays can show significant variation depending on the specific nanostructure that is created. Regarding localized surface-plasmon resonance, nanorings display a red shift and a widening in the plasmon band. Possible uses for the resonance effect of the nanostructure are discussed.
Ключевые слова: nanosphere lithography, self-assembly, doctor blade, nanodots, nanorings, plasmonics.
URL: https://mfint.imp.kiev.ua/ru/abstract/v46/i03/0223.html
PACS: 07.60.-j, 07.79.-v, 73.20.Mf, 81.16.Dn, 81.16.Nd, 81.16.Rf