After 3 years of systematic monitoring of fireballs by autonomous fireball observatories (AFO), millisecond flares (spikes) were recognized for the frequent and regular behavior of meteor light curves recorded with high time resolution. Also, other peculiarities in meteor motion, radiation, and ionization point to some more powerful internal processes in meteoroid interaction with the atmospher...

A versatile vibration energy harvesting platform based on a triboelectricity is proposed and analyzed. External mechanical vibration repeats an oscillating motion of a polymer-coated metal oscillator floating inside a surrounding tube. Continuous sidewall friction at the contact interface of the oscillator induces current between the inner oscillator electrode and the outer tube electrode to co...

Abstract Since the discovery of graphene, two-dimensional (2D) materials have been widely applied to field-effect transistors due their great potential in optoelectronics, photodetectors, intelligent sensors, and neuromorphic devices. By integrating a 2D transistor with triboelectric nanogenerator (TENG) into tribotronic transistor, induced can readily regulate charge carrier transport characte...

Owing to the waste of energy originated by any physical or chemical process, approaches for reducing losses have been conceived and, nowadays, recovery and conversion systems represent a worldwide-recognized solution. The advent colloidal-based cybernetic highlights essential role harvesting, storage, management capabilities coped colloidal energetic systems. In this work, an alternative thermo...

Liquid electricity generator and hydrovoltaic technology have received numerous attentions, which can be divided into horizontal movement vertical generator. The is limited for powering the integrated miniaturized energy chip as current output direction depending on moving of water droplet, means a sustainable continuous direct-current (DC) hardly achieved because film length. On other hand, ex...

Friction-driven static electrification is familiar and fundamental in daily life, industry, technology, but its basics have long been unknown continually perplexed scientists from ancient Greece to the modern high-tech era. Despite simple manifestation, triboelectric charging believed be very complex because of unresolvable interfacial interaction between two rubbing materials. Here, we for fir...

High humidity environments can accelerate the transmission, neutralization, or dissipation of frictional charges on surface solid-solid triboelectric nanogenerator films (TENGs), which reduce output power. The moisture resistance properties TENG film are needed to overcome these problems. Therefore, this study discusses role TiO2 nanofiller in cassava starch (CS) and polyvinyl alcohol (PVA) nan...