The synergy enables the loading of biometric information into the optical domain and the multiplexing of digital and biometric information at zero power consumption. Here, we show that biometrics-protected optical communication can be constructed by synergizing triboelectric and nanophotonic technology. Security is a prevailing concern in communication as conventional encryption methods are challenged by progressively powerful supercomputers. A straightforward signal processing circuit that includes an effective simulation, is demonstrated to validate the working principle of such self-powered security identification tags. This is exhibited by a rapid but simple signal processing method used in several applications like R-G-B colour codes, personal ID cards and product identification tags. Further, different arrays of TiPP have been designed to create a unique coding system (high/low signal) that can simultaneously enable self-powered sensing and an identification system. Apart from using conventional electrode materials, graphite pencils were also utilised towards a more simple, environmentally friendly and cost-effective approach. It instantaneously generated an electrical signal of 0.91 W m⁻² due to a mechano-responsive charge transfer mechanism. Thus, a simple piece of paper was used for energy harvesting without having any physical separation from the electrode of the system.

A touch-interactive power paper (TiPP) was developed using in-situ polymerization followed by painting an electrode layer of graphite/silver onto it. Here, we have presented an ultra-thin (~ 0.18 mm) self-powered paper-based prototype as a touch-interactive electronic tag for next-generation Internet of Things (IoT) enabling smart security applications. Self-powered devices are the need of the hour for future technologies and next-generation electronics that require both smartness and sustainability. The final part also discusses the challenges and perspectives for further development and the opportunity for commercialization of this nanogenerator. Herein, an overview of recent advances for hybrid PENG and TENG development is presented, including basic mechanisms, related theories, coupling effect, performance factors, and potential applications. Through outstanding performance, the hybrid PENG and TENG can be applied in various fields, especially in flexible electronics technology. This provides a higher yield of charge density, which relates to a higher magnitude of output current. This unique characteristic serves as combinations of polarized charges from the piezoelectricity and surface charges from the triboelectric effect, when the hybrid device is subjected to a mechanical stress. Hence, a hybrid strategy between piezoelectric and triboelectric effects from piezoelectric nanogenerator (PENG) and TENG is proposed. However, in some cases, the use of pristine triboelectric material for a TENG operation might be insufficient for efficiently driving/sensing small-to-medium electronic systems without the modification. The triboelectric nanogenerator (TENG) attracted attention by developing this technology, due to its high-performance, facile design/fabrication, light-weight and high flexibility. For several decades, a focus has been placed on the development of future flexible electronics, including electronic skin, wearable devices, environmental monitoring systems and the Internet of things (IoT) network.

Combat 3 85play