Layer-by-Layer Assembly of Three Dimensional Optical Functional Nanostructures
Date
2019
Authors
Zheng, Chaoqun
Shen, Yang
Liu, Mingkai
Liu, Wenjie
Wu, Shaoying
Jin, Chongjun
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Volume Title
Publisher
American Chemical Society
Abstract
Nanotransfer printing (nTP) technology can generate highly functional three-dimensional (3D) nanostructures in a low-cost and high-throughput fashion. Nevertheless, the fabrication yield and quality of the transferred nanostructures are often limited by the merging of the surface patterns of replica stamps during transfer printing. Here, an nTP technology was developed to fabricate large-area and crack-free 3D multilayer nanostructures. Instead of directly depositing materials on the patterned flexible stamp in conventional nTPs, we transferred the nanostructures straightforwardly onto an attached polydimethylsiloxane slab by removing a sacrificial water-soluble poly(acrylic acid) film, which can avoid the cracking of metal film and the failures of printing nanostructures onto target substrates. Based on this approach, subwavelength-thick polarization rotators working at infrared wavelengths were fabricated. Excellent performance of linear polarization rotation over a broadband was realized. This nTP approach could complement existing fabrication techniques and benefit the development of various functional nanostructures with complex multilayer hierarchies.
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Source
ACS Nano
Type
Journal article
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DOI
10.1021/acsnano.9b00549
Restricted until
2037-12-31