Dual-cavity based penta-layered reflective RGB structural colors filters
- Resource Type
- Authors
- Kwangjun Kim; Incheol Jung; Hui Joon Park; Hyeonwoo Kim; Jong G. Ok; Minwook Kim; Kyu-Tae Lee; Hojae Kwak
- Source
- Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII.
- Subject
- Wavelength
Materials science
Optics
business.industry
High-refractive-index polymer
Filter (video)
Additive color
Deposition (phase transition)
RGB color model
business
Structural coloration
Dual (category theory)
- Language
We present dual-cavity based reflective structural color filters that can produce RGB additive colors featuring high purity and high efficiency. We decided to design a filter with a new wavelength by combining two classical MDM structure Fabry-Perot cavities with different resonant wavelength. A cavity medium with high refractive index leads to angle-invariant performance up to 50˚. Moreover, only deposition is involved so that the device can be easily scaled over a large area. The described approach may provide new avenues for various applications, such as reflective displays and surface coatings for decoration and solar cells.