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US 12,193,329 B2Granted
Light emitting electrochemical cells with band-edge enhanced light emission due to chiral liquid crystalline structure
AssigneeRed Bank Technologies LLC
InventorsJohn Magno, Gene C. Koch
Life of this patent
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Abstract
Light emitting electrochemical cell devices comprising chiral liquid crystalline materials. The chiral liquid crystalline material mixtures of the devices function as both electrolytes and as light emitting materials. The chiral liquid crystalline material mixtures also form photonic crystal structures creating a photonic stop band. The presence of the photonic stop band enables the light emitting electrochemical cell devices to emit light with improved energy efficiency.
Claims18
A light emitting electrochemical cell comprising two electrodes and a layer comprising a material wherein:
- the layer is situated between the two electrodes,
- the material of the layer exhibits a chiral liquid crystalline phase, and
- wherein the material comprises a molecule having the structure:
- wherein A is a rigid rod or rigid lath-shaped aromatic moiety, S is a flexible spacer, C is a crosslinking group, and X− are negatively charged counter ions.
1 more element
Dependencies are inferred from the claim text.