【英语时差8,16】纳米管，太阳能电池，再生能源（下）

（单词翻译）

Scientists at MIT have built nanotubes that act like tiny antennas¹, or funnels³, that can concentrate sunlight on a solar cell. Regular solar cells capture only a relatively⁴ small portion of the light that hits them, mainly because the materials used to build the cells naturally absorb some wavelengths⁵ of light and reflect others. Carbon nanotubes specially⁶ designed to capture and funnel² as much light as possible at all wavelengths could solve that problem. Nanotube antennas could result in solar cells that are much smaller but also more powerful than today’s commercial cells. At the moment, though, such cells are only a theoretical possibility. Researchers need to work out dozens of technical details before nanotube powered solar cells become a reality.