Full-color generation enabled by refractory plasmonic crystals
Journal
Nanophotonics
Journal Volume
11
Journal Issue
12
Start Page
2891
End Page
2899
ISSN
2192-8606
2192-8614
Date Issued
2022-05-06
Author(s)
Chiao, Zong-Yi
Chen, Yu-Chia
Chen, Jia-Wern
Chu, Yu-Cheng
Yang, Jing-Wei
Peng, Tzu-Yu
Syong, Wei-Ren
Lee, Ho Wai Howard
Lu, Yu-Jung
Abstract
Plasmonic structural color, in which vivid colors are generated via resonant nanostructures made of common plasmonic materials, such as noble metals have fueled worldwide interest in backlight-free displays. However, plasmonic colors that were withstanding ultrahigh temperatures without damage remain an unmet challenge due to the low melting point of noble metals. Here, we report the refractory hafnium nitride (HfN) plasmonic crystals that can generate full-visible color with a high image resolution of ∼63,500 dpi while withstanding a high temperature (900 °C). Plasmonic colors that reflect visible light could be attributed to the unique features in plasmonic HfN, a high bulk plasmon frequency of 3.1 eV, whichcould support localized surface plasmon resonance (LSPR) in the visible range. By tuning the wavelength of the LSPR, the reflective optical response can be controlled to generate the colors from blue to red across a wide gamut. The novel refractory plasmonic colors pave the way for emerging applications ranging from reflective displays to solar energy harvesting systems.
Subjects
HfN
localized surface plasmon resonance
plasmonic colors
plasmonic crystals
refractory plasmonics
transition metal nitrides
Publisher
Walter de Gruyter GmbH
Type
journal article