Open AccessDynamic reflective color pixels based on molybdenum oxide
Author(s) -
Gonzalo Santos,
Francisco González,
Dolores Ortiz,
J. M. Saiz,
María Losurdo,
Fernando Moreno,
Yael Gutiérrez
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.424763
Subject(s) - color filter array , optics , materials science , optoelectronics , pixel , high color , structural coloration , color gel , optical filter , wavelength , plasmon , visible spectrum , layer (electronics) , computer science , color image , image processing , physics , nanotechnology , photonic crystal , artificial intelligence , image (mathematics) , thin film transistor
Active materials which show phase transitions, usually known as Phase Change Materials (PCM), have paved the way to a new generation of reconfigurable plasmonic platforms. Tunable color devices have experienced a great development in the recent years. In particular, reflective color filters can take advantage from sunlight to select and reflect a specific resonant wavelength in the visible spectrum range. Reflective displays are usually structural color filters based on asymmetric Fabry-Perot cavities (AFPCs). For a fixed geometry, most of AFPCs filters generate static color, limiting their potential as tunable color devices. Dynamic color is achieved by introducing an active layer whose optical properties can be modulated by an external stimuli. In this paper, we propose AFPCs based on molybdenum oxide (MoO x , 2<x<3) to achieve switchable on/off color reflective pixels. On and off states of the pixels are controlled through the stoichiometry of the MoO x layer.