Abstract: In one aspect, the disclosure relates to fiber-shaped mechanoluminescent perovskite sensors, methods of making the same, composite laminate materials comprising the same, methods of sensing damage in composite laminate materials, and articles including the composite laminate materials. The fiber-shaped mechanoluminescent perovskite sensors are durable, are flexible and thus compatible with various structural arrangements including structures with curves, and do not disrupt the structural integrity of the materials in which they are embedded. In another aspect, the disclosed sensors are capable of pinpointing the precise location of barely visible impact damage and of being integrated into existing data transmission systems.

Abstract: Organic photovoltaic materials (OPV) and devices using the same are provided, as well as methods of fabricating and using the same. An OPV material can be used as a photo-absorbing layer for mechanoluminescent (ML) light (e.g., in a flexible organic ML photodiode). The OPV material can include, for example, a blend of a donor polymer (e.g., P3HT) and a non-halogenated, non-fullerene acceptor (e.g., Y6).

Abstract: Organic photovoltaic materials (OPV) and devices using the same are provided, as well as methods of fabricating and using the same. An OPV material can be used as a photo-absorbing layer for mechanoluminescent (ML) light (e.g., in a flexible organic ML photodiode). The OPV material can include, for example, a blend of a donor polymer (e.g., P3HT) and a non-halogenated, non-fullerene acceptor (e.g., Y6).

Abstract: A sensor that can be used for real time monitoring of load and structural health in engineering structures is provided. The sensor may include a patch with a portion of an optical fiber embedded therein. There may also be triboluminescent materials dispersed within the patch, on and/or near the portions of the optical fiber embedded in the patch. There may be micro-excitors located in proximity to the triboluminescent materials and on the surface of the optical fiber. Loading events and/or damage to the monitored structure may result in a triboluminescent emission from the triboluminescent material that can be guided via the optical fiber. Analysis of the triboluminescent emission may provide information on the magnitude of the applied load as well as the occurrence, severity and location of damage in the structure.

Abstract: A sensor that can be used for real time monitoring of load and structural health in engineering structures is provided. The sensor may include a patch with a portion of an optical fiber embedded therein. There may also be triboluminescent materials dispersed within the patch, on and/or near the portions of the optical fiber embedded in the patch. There may be micro-excitors located in proximity to the triboluminescent materials and on the surface of the optical fiber. Loading events and/or damage to the monitored structure may result in a triboluminescent emission from the triboluminescent material that can be guided via the optical fiber. Analysis of the triboluminescent emission may provide information on the magnitude of the applied load as well as the occurrence, severity and location of damage in the structure.

Abstract: A sensor that can be used for in-situ structural health monitoring with a triboluminescent material provided on a portion of an optical fiber that may be embedded in materials to be structurally monitored. Damage to the monitored material may result in a triboluminescent emission from the triboluminescent material that can be guided via the optical fiber. Analysis of the triboluminescent emission may provide information on the occurrence, severity and location of damage in a structure.

Abstract: Embodiments can provide systems, methods, and apparatus for monitoring the structural health of one or more structures and associated materials. For example, a structural health monitoring system can be provided. The system can include a structure to be monitored, the structure including a material with multiple triboluminescent sensors and multiple nano-optoelectronic members; and an analyzer in signal communication with the nano-optoelectronic members.

Abstract: Embodiments can provide systems, methods, and apparatus for monitoring the structural health of one or more structures and associated materials. For example, a structural health monitoring system can be provided. The system can include a structure to be monitored, the structure including a material with multiple triboluminescent sensors and multiple nano-optoelectronic members; and an analyzer in signal communication with the nano-optoelectronic members.

Abstract: A resin infusion system uses a housing that has an upper flexible diaphragm and a lower flexible diaphragm such that the two diaphragms form a cavity. A fiber reinforcement mat is positioned within the cavity. A mold is positioned below the lower diaphragm. A flow plate has a series of V-shaped grooves and is positioned either underneath the lower diaphragm or overtop the upper diaphragm so that the grooves press into the respective diaphragm. A vacuum is created within the housing causing resin to be drawn into the cavity with the resin interacting with the grooves increasing the turbulence of the resin flow. Once the reinforcement mat is properly wetted, the mold is pressed into the lower diaphragm.