Abstract
Herein, the single-pixel color modulation in a composite structure based on a yarn muscles–graphene mechanical system and photonic crystal multimode microcavity is investigated. The position of graphene in the microcavity is changed by varying the stretching of yarn muscles using different current levels. This aids in adjusting the light absorption of graphene to different colors. Hence, red, green, blue, and their mixed colors can be displayed using a single pixel; moreover, the color gamut of this system can reach 96.5% of sRGB space. The proposed system can avoid the spontaneous oscillation caused by large strain energy. This solution can provide insights into the design of low-power, ultrahigh-resolution, and ultrawide-color-gamut interferometric modulator display technologies.
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