Solar cells convert sunlight to electricity.But they don’t take advantage of all that solar heat, thereby _____1_____ the majority of the solar energy reaching the cell.The sun’s heat can _____2_____ warm up liquid that can then warm a building’s water, but those devices don’t generate electricity.Now, scientists have developed a single device to do both.
It’s an array of clear tubes, each five milimeters in diameter.The tubes are filled with oil blended with a proprietary dye.A polymer photovoltaic _____3_____ the back of the tubes.When sunlight hits the tubes the liquid within becomes superheated.In a home situation, it would then flow into a heat pump to transfer that heat.Meanwhile, sunlight also strikes the polymer, where _____4_____ electricity.
The scientists say that their device has a 30 percent efficiency in converting sunlight into power.Conventional solar-only devices with polymer absorbers have less than 10 percent efficiency.The research appears in the journal Solar Energy Materials and Solar Cells.
Continued research and development should _____5_____ more light—and a lot more heat—on the entire field of alternative energy production.
【视听版科学小组荣誉出品】
missing out on be captured to gets sprayed onto it's converted to shed
简单小设备,吸收太阳能 太阳能电池可以将太阳能转化为电能。但它们并没有利用所有的太阳能,在能量到达电池前就浪费了大部分太阳能。虽然可以通过太阳产生的热来加热建筑物用水,但那些设备无法发电。如今,科学家发明了一种同时实现这两个用途的设备。 这是一组干净的管道,每根直径五毫米。其中注入了混合着特制染料的油状液体。后面喷有高分子光电聚合物。阳光照射管道时,其中的液体会被加热。在日常生活状态下,液体会流进热泵,传导热能。与此同时,照射在光电聚合物上的阳光可以转化为电能。 科学家说此设备将阳光转化为能量的效率可达30%。而常规带有聚合物吸收器的单一太阳能设备的效率低于10%。此研究发表在《太阳能材料和太阳能电池》期刊上。 进一步的研究和发展应该是放眼可替代能源生产的整个领域,让可替代能源发光发热。