A record-high efficiency of 16.92% was realized by using microscale-patterned Si solar cells.
A proof-of-concept mimetic transpiration system generator with carbonized wood achieved a record high conversion efficiency of 91.3% under one-sun, originating from the excellent thermal management of system and >97% carbonized wood solar absorptance and green house effect of vapor.
Combined with the extremely lowered thermal conductivity attributed from the intrinsic anharmonicity and point defect phonon scattering, the series of ultra-high zTave and a record high calculated conversion efficiency of 21% over a wide temperature range are approached.
A record high 104% output differential efficiency was achieved for a 3-stage long-wavelength VCSEL.
David Cameron stands accused of using "smoke and mirrors" tactics over his pledge to cut energy bills, with critics claiming that fuel prices will be at a record high this winter and cuts to energy efficiency schemes will come at the expense of some of the poorest households.
Here, we report the record high-efficiency of 16.9% for periodically patterned silicon (Si) solar cells.
Job vacancies are at a record high.
Unemployment is at a record high.
Platinum prices are at a record high.
It might even hit a record high.
