In:
Journal of Materials Chemistry C, Royal Society of Chemistry (RSC), Vol. 10, No. 8 ( 2022), p. 3114-3120
Abstract:
Electrically-responsive photonic crystals have drawn extensive interest due to the growing demands of camouflage, displays, sensing, energy-saving buildings, etc. , due to their fine control, fast response and convenient implementation. Veiled by the development on hue modulation, brightness/saturation tuning still remains a challenge. This work demonstrates a strategy to modulate the brightness of electrically-responsive photonic pixels via surface charge treatment of electrodes. The reflection intensity is raised by 110% due to the growth of the short-range ordered Fe 3 O 4 @C colloidal lattice as a result of enhanced Coulombic forces. The numerical simulation of the potential of the photonic liquid confirms that the potential distribution depends on the electrode surface charge. Furthermore, wide angle-independent photonic colors are well-tuned due to the anisotropic expansion/compression of the photonic lattice via electrophoretic movements of charged particles under an electric field. We believe that our work not only provides a useful way to modulate brightness but also suggests novel designs for electrically-responsive photonic devices.
Type of Medium:
Online Resource
ISSN:
2050-7526
,
2050-7534
Language:
English
Publisher:
Royal Society of Chemistry (RSC)
Publication Date:
2022
detail.hit.zdb_id:
2702245-6
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