Abstract: Provided is a perovskite-based photovoltaic device including a layered scaffold material and at least one perovskite material interpenetrating the layered scaffold, wherein the at least one perovskite layer is removable and regenerable.

Abstract: A versatile air purification system is disclosed herein. The invention harnesses reflective light trapping components capable of circulating high-intensity visible and infrared radiation. Passing air absorbs a part of the energy in aerosols as viruses and bacteria. Excessive energy consequently induces denaturation of biomacromolecules and can trigger chemical and physical disinfection mechanisms to airborne pathogens. This technology is also compatible with various HVAC systems, like those of medical facilities, buildings, and vehicles, and can be utilized for other fluids too. The system can further be applied as a distinct, portable air purification apparatus.

Abstract: The current invention aims at improving the playability, durability, and spin generation of different playing rackets, as tennis, squash, and badminton rackets. The method to do so is by applying mechanical forces which generate relative motion of the latitudinal strings over the longitudinal strings. This is done in order to create friction that generate depressions in the contact points of the latitudinal strings with the longitudinal strings. These depressions, made by the described method and machine, induce more friction, and generate spin, while increasing the playability and durability during the play.

Abstract: This invention enables the solar charging of mobile electronic devices through LCD screens. High power efficiency photovoltaic panels utilize the light deflecting properties of Edge-lit LCD screens to produce electrical energy for the recharging of the batteries of the devices. Smartphones; laptop computers; tablets; e-readers, mobile phones, among other mobile devices are covered by the scope of the current invention. The addition of photovoltaic cells, according to the invention, should not change significantly the appearance of the devices or manufacturing costs.

Abstract: The current invention allows the solar charging of mobile electronic devices through substantially transparent screen-integrated photovoltaic cells. The current invention utilizes high energy-low wavelength light to produce electric power, through a high band-gap photovoltaic panel which is installed as part of the device's screen. This invention will allow prolonging the usage time of smartphones; laptop computers; tablets; e-readers, mobile phones, electronic watches, and more, without significant weight, volume, or cost addition.

Abstract: A system, method and computer program product are provided for providing access to a plurality of service providers. In use, information associated with a customer is received. In addition, a plurality of service providers are identified, based on the information. Further, a single interface is presented for providing access to the plurality of service providers.