What does this research mean for the field?

Doping liquid crystals with graphene quantum dots (GQDs) enhances the phase shift of electrically controlled GHz phase shifters, with higher GQD concentrations increasing the phase shift magnitude and decreasing the frequency required for a complete 360° shift. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

Investigate the influence of graphene quantum dot doping and applied voltage on the Fredericks transition and phase-tuning performance in electronically controlled liquid crystal phase shifters.

August 26, 2026Liquid Crystals

Influence of graphene quantum dot doping on Fredericks transition and phase tuning in liquid crystal-based phase shifters

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Authors

RNRojan NaseriAlzahra University KPKioumars PedramUniversity of Siena SSSaeedeh ShoarinejadAlzahra University

Discussion

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Implication

Simulation and analytical modeling demonstrates that graphene quantum dot doping improves liquid crystal phase shifting, suggesting applications in tunable microwave devices.

Key Points

Investigate the influence of graphene quantum dot doping and applied voltage on the Fredericks transition and phase-tuning performance in electronically controlled liquid crystal phase shifters.
Formulated an analytical model to predict microwave phase-shifting behavior based on graphene quantum dot dopant concentration and applied voltage.
Validated theoretical model performance using Computer Simulation Technology (CST) simulations in the gigahertz (GHz) frequency regime.
Increasing applied voltage significantly enhanced the total phase shift produced by the device.
Higher graphene quantum dot concentrations led to larger phase shifts and decreased the frequency required to achieve a full 360° phase shift.
Analytical model predictions matched CST electromagnetic simulations, confirming model reliability for microwave device design.

Cite This Study

Naseri et al. (2026) studied this question.

synapsesocial.com/papers/6a8e9bae451774b83f3b48ca https://doi.org/10.1080/02678292.2026.2715496

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August 26, 2026Liquid Crystals

Influence of graphene quantum dot doping on Fredericks transition and phase tuning in liquid crystal-based phase shifters

View Full Paper

Ask AI

Bookmark

Authors

RNRojan NaseriAlzahra University KPKioumars PedramUniversity of Siena SSSaeedeh ShoarinejadAlzahra University

Discussion

Member takes

Implication

Simulation and analytical modeling demonstrates that graphene quantum dot doping improves liquid crystal phase shifting, suggesting applications in tunable microwave devices.

Key Points

Investigate the influence of graphene quantum dot doping and applied voltage on the Fredericks transition and phase-tuning performance in electronically controlled liquid crystal phase shifters.
Formulated an analytical model to predict microwave phase-shifting behavior based on graphene quantum dot dopant concentration and applied voltage.
Validated theoretical model performance using Computer Simulation Technology (CST) simulations in the gigahertz (GHz) frequency regime.
Increasing applied voltage significantly enhanced the total phase shift produced by the device.
Higher graphene quantum dot concentrations led to larger phase shifts and decreased the frequency required to achieve a full 360° phase shift.
Analytical model predictions matched CST electromagnetic simulations, confirming model reliability for microwave device design.

Cite This Study

Naseri et al. (2026) studied this question.

synapsesocial.com/papers/6a8e9bae451774b83f3b48ca https://doi.org/10.1080/02678292.2026.2715496

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