Open AccessElectrically Tunable Non-volatile Reflective Display Pixel Structure Based on Phase Change Material
Author(s) -
Tong Zhou,
Ding San Gao,
Shiyue Cao,
Zhiyuan Cheng
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1544/1/012034
Subject(s) - stack (abstract data type) , materials science , phase change , pixel , optoelectronics , phase (matter) , resonance (particle physics) , optics , mixing (physics) , chemistry , computer science , engineering physics , physics , organic chemistry , particle physics , quantum mechanics , programming language
A multi-layered non-volatile solid-state reflective display pixel structure composed of a Fabry-Perot type resonance cavity and an ultrathin phase change material film has been fabricated and analysed. By electrically switching the phase states of a phase-changing Ge 2 Sb 2 Te 5 (GST) film using an electric micro-heater under the stack, a pronounced colour change in pixel structures is observed, which is attributed to the change in the resonance condition of the multi-layered stack. Furthermore, the range of attainable colour can be widened by exploiting a spatial colour mixing structure.