Self-powered broadband photodetection with mixed-phase black TiO2-assisted output boosting of a biobased triboelectric nanogenerator

3D Printed SnS2/SnS-Based Nanocomposite Hydrogel as a Photoenhanced Triboelectric Nanogenerator

“…Therefore, the response time (time required to reach 90% of current deviation) can be calculated by the time difference between two peaks of I sc , which is 0.5 s. Figure d illustrates the device’s response after 6 s of illumination; when the light was turned off, the I sc slowly reduced and recovered the previous dark as there was no more extra current generated under dark. The recovery time (the time difference to recover 90% of the current deviation or to recover up to 10% of the current increment) is calculated as 3 s, which is lesser than that of the previously reported triboelectric nanogenerator …”

“…Photoactive semiconductor material with a low energy band gap generates the photocarriers under illumination. However, the recombination process of the electron–hole pairs from the carrier reduces the charge trap . However, as per the quantum conversion efficiency theory, it has been concluded that the higher separation efficiency provides higher I sc, as the charge trap will be more .…”

“…However, the recombination process of the electron−hole pairs from the carrier reduces the charge trap. 33 However, as per the quantum conversion efficiency theory, it has been concluded that the higher separation efficiency provides higher I sc, as the charge trap will be more. 35 In this work, the SnS 2 /SnS acts as a photoactive material that boosts the efficiency of PTNG via a charge trap from the mutual coupling effect.…”

Applications of multifunctional triboelectric nanogenerator (TENG) devices: materials and prospects

“…74 The PDMS@TiO 2 TENG device was created by Chakraborty et al It has a UV-NIR detection range, triboelectric output voltage and current of 85 V and 3.5 μA, respectively, as well as a responsivity of 606.7 V W −1 . 75 Self-powered TENG-based photodetectors have the advantage of being able to produce electrical output without the need for an external power source. They are therefore appropriate for use where there is a shortage of electricity or where batteries or other external power sources are not preferable.…”

Tribo-piezoelectric Hybrid Nanogenerators Based on ZnO Nanorods and CsPbBr3 Nanoparticle/PVDF-HFP Films for Self-Powered Photodetectors

“…The increasing demand for Internet of Things (IoT)-based electronic devices and accessories has led to an increase in the demand for portable power supplies. In this context, self-powered devices are exciting due to their capability to overcome the limitations of conventional batteries or power sources. − In recent times, nanogenerators working on piezo or triboelectric effects have evolved as excellent energy-harvesting systems that can convert the surrounding mechanical energy into electrical energy. ,− Piezoelectric nanogenerators (PENGs) relying on piezoelectric materials have a strong reputation for potential applications from electromechanical transducers to biomedical devices. ,− Again, with a simple device structure and cost-effectiveness, triboelectric nanogenerators (TENGs) have gained immense attention for the development of self-powered electronic devices. ,− TENG works on the principle of contact electrification and electrostatic induction, thereby offering a wide range of material selectivities. , Again, from the device point of view, the single-electrode mode of TENG (STENG) is more suitable for the fabrication of flexible and wearable self-powered components due to a reduction in the number of electrodes. Optimized device engineering has further opened up the applicability of PENG and TENG devices at flexible and wearable platforms for diverse applications. − Several reports on the application of nanogenerators in tactile/gesture detection, motion tracking, biosensing, photodetection, etc., are available in the literature. ,,− In the modern era, photodetection or light sensing in the UV–visible to near-infrared (NIR) regions has become essential in various fields such as defense security systems, healthcare systems, remote sensing, environmental monitoring, etc.…”