Imagine a world where sunlight can be captured to produce electricity anywhere, on any surface. The makers of thin-film flexible solar cells imagine that world too. But a big problem has been the amount of silicon needed to harvest a little sunshine.

发表于:2019-01-08 / 阅读(65) / 评论(0) 分类 Scientific American(二)月

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Solar cells convert sunlight to electricity. But they don't take advantage of all that solar heat, thereby missing out on the majority of the solar ene

发表于:2019-01-08 / 阅读(107) / 评论(0) 分类 Scientific American(四)月

New design produces flexible panels using only 1-2 percent as much silicon Art Chimes | Washington, DC 19 February 2010 You can use 100 times less silicon. And that's potentially very significant. Harry Atwater Schematic diagram of the light-trapping

发表于:2019-01-13 / 阅读(61) / 评论(0) 分类 VOA标准英语2010年(二月)

Volunteers Help Scientists in Search for Cheap Solar Cells Most of today's solar cells are silicone-based and their manufacture requires sophisticated machinery and expertise. An average home in the United States uses between 20 and 24 kilowatt hours

发表于:2019-01-14 / 阅读(41) / 评论(0) 分类 VOA标准英语2013年(七月)

中国光伏企业在美遭双反调查 BEIJING, Jan. 8 (Xinhuanet) -- Chinese solar companies will be entirely blocked from the United States market if that nation's government imposes new duties on solar cell products made in the Chinese mainland a

发表于:2019-02-03 / 阅读(24) / 评论(0) 分类 英语新闻

托福语法讲解:限定词

发表于:2019-02-07 / 阅读(38) / 评论(0) 分类 英文语法词汇