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US 11,913,847 B2Granted
Mechanoluminescent devices, articles, and methods
AssigneeThe Florida State University Research Foundation, Inc.
InventorsOkenwa I. Okoli, Md Abu S. Shohag, Nirmal Adhikari
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Abstract
Mechanoluminescent devices and articles, such as wearable articles, that include mechanoluminescent devices. The mechanoluminescent devices may have a lateral type architecture or a vertical type architecture. The mechanoluminescent devices may be sensors, including pressure sensors.
Claims18
A mechanoluminescent device having a vertical device architecture, the device comprising:
- an electrode;
- a first layer comprising a perovskite;
- a counterelectrode;
- a substrate;
- a second layer comprising a mechanoluminescent material and a matrix material in which the mechanoluminescent material is dispersed;
- (i) a first charge transporting layer, (ii) a first charge blocking layer, or (iii) a first charge transporting layer and a first charge blocking layer;
- (a) a second charge transporting layer, (b) a second charge blocking layer, or (c) both a second charge transporting layer and a second charge blocking layer;
- wherein the first charge transporting layer, the first charge blocking layer, or both the first charge transporting layer and the first charge blocking layer is arranged between the first layer and the counterelectrode,
- wherein the second charge transporting layer, the second charge blocking layer, or both the second charge transporting layer and the second charge blocking layer is arranged between the first layer and the electrode,
- wherein the first layer is arranged between the electrode and the counterelectrode, and the counterelectrode is arranged between the first layer and the second layer,
- wherein the substrate is arranged between the counterelectrode and the second layer, and
- wherein the substrate is transparent, flexible, or a combination thereof.
9 more elements
A mechanoluminescent device having a vertical device architecture, the device comprising:
- an electrode;
- a first layer comprising a perovskite;
- a counterelectrode;
- a second layer comprising a mechanoluminescent material and a matrix material in which the mechanoluminescent material is dispersed;
- a third layer comprising one or more reflector materials,
- (i) a first charge transporting layer, (ii) a first charge blocking layer, or (iii) a first charge transporting layer and a first charge blocking layer;
- (a) a second charge transporting layer, (b) a second charge blocking layer, or (c) both a second charge transporting layer and a second charge blocking layer;
- wherein the first charge transporting layer, the first charge blocking layer, or both the first charge transporting layer and the first charge blocking layer is arranged between the first layer and the counterelectrode,
- wherein the second charge transporting layer, the second charge blocking layer, or both the second charge transporting layer and the second charge blocking layer is arranged between the first layer and the electrode,
- wherein the first layer is arranged between the electrode and the counterelectrode, and the counterelectrode is arranged between the first layer and the second layer, and
- wherein the second layer is arranged between the counterelectrode and the third layer.
8 more elements
Dependencies are inferred from the claim text.