Self-induced interface enhanced moisture-harvesting and light-trapping toward high performance electric power generation

Abstract

A self-induced imprinting strategy is proposed to in situ establish the interface microgroove architecture for efficient synergy of water coalescence, migration, and light harvesting.

The emerging chemistry of self-electrified water interfaces

“…215 Water interfaces stimulate photovoltaic effects in the vicinity of silicon surfaces, 222 and in some reports, moisture associated with light is called LMEG. 223,224 Other cases include adsorption–desorption (MADG), 225 as in an agricultural waste-derived moisture absorber (AWH). 226 The perspective of application in wearable electronics led to the development of a yarn-shaped moisture-induced electric generator (YMEG).…”

A deformable complementary moisture and tribo energy harvester

“…To further improve the harvesting performance, MEGs can be effectively integrated with other energy harvesters. [25][26][27] For instance, a high-performance MEG system was developed by incorporating a photosensitive phytochrome into a hydrophilic polyelectrolyte. 25 However, although the hybrid MEG system successfully harvested both moisture and sunlight synchronously, the power still needs to be improved, requiring the arrays of the hybrid MEGs to operate conventional electronic devices due to their output voltage typically in the range of hundreds of millivolts to approximately 1.0 V. We envisioned that harvesters based on mechanical-energy conversions such as piezo-and triboelectricity could be good candidates for high-performance hybrid MEGs because of their capability for readily generating high output voltages.…”

Characterization methods on moisture-enabled power generator: mechanism, parameters and applications

“…Moisture-enabled power generation (MEG) is an emerging energy harvesting technology [5][6][7][8]. It uses water molecules that are easily available in natural and biological systems and converts related chemical energy, thermal energy and mechanical energy into electrical energy [9,10].…”