硒元素可以让太阳能电池更高效-凯发k8官网

硒元素可以让太阳能电池更高效
文章来源:未知 文章作者:meng 发布时间:2010-08-04 00:36 字体: [ ] 
(单词翻译:双击或拖选)

call it the anti-sunscreen(遮光剂) . that's more or less the description of what many solar energy researchers would like to find -- light-catching substances that could be added to photovoltaic(光电的) materials in order to convert more of the sun's energy into carbon-free electricity. research reported in the journal 1 physics letters, published by the american institute of physics (aip), describes how solar power could potentially be harvested by using 2(氧化物) materials that contain the element selenium(硒) . a team at the lawrence berkeley national laboratory in berkeley, california, 3 selenium in 4 oxide, a 5 inexpensive material that could be 6 for solar power 7 if it could make more efficient use of the sun's energy. the team found that even a relatively small amount of selenium, just 9 percent of the mostly zinc-oxide base, dramatically boosted the material's efficiency in absorbing light.

"researchers are exploring ways to make solar cells both less expensive and more efficient; this result potentially addresses both of those needs," says author marie mayer, a fourth-year university of california, berkeley doctoral student based out of lbnl's solar materials energy research group, which is working on novel materials for sustainable clean-energy sources.

mayer says that photoelectrochemical water splitting(水光电解法) , using energy from the sun to 8 water into hydrogen and oxygen gases, could potentially be the most exciting future application for her work. harnessing this reaction is key to the 9 production of zero-emission hydrogen powered vehicles, which hypothetically(假设地) will run only on water and sunlight. like most researchers, mayer isn't predicting hydrogen cars on the roads in any meaningful numbers soon. still, the great thing about solar power, she says, is that "if you can dream it, someone is trying to research it."



点击收听单词发音收听单词发音  

1 tz2zxa     
adj.应用的;v.应用,适用
参考例句:
  • she plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • this cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
2 k4dz8     
n.氧化物
参考例句:
  • oxide is usually seen in our daily life.在我们的日常生活中氧化物很常见。
  • how can you get rid of this oxide coating?你们该怎样除去这些氧化皮?
3 lt9zts     
a.扎牢的
参考例句:
  • an operation to remove glass that was embedded in his leg 取出扎入他腿部玻璃的手术
  • he has embedded his name in the minds of millions of people. 他的名字铭刻在数百万人民心中。
4 dfxwx     
n.锌;vt.在...上镀锌
参考例句:
  • brass is formed by the fusion of copper and zinc.黄铜是通过铜和锌的熔合而成的。
  • zinc is used to protect other metals from corrosion.锌被用来保护其他金属不受腐蚀。
5 bkqzs3     
adv.比较...地,相对地
参考例句:
  • the rabbit is a relatively recent introduction in australia.兔子是相对较新引入澳大利亚的物种。
  • the operation was relatively painless.手术相对来说不痛。
6 bkqzsk     
adj.有希望的,有前途的
参考例句:
  • the results of the experiments are very promising.实验的结果充满了希望。
  • we're trying to bring along one or two promising young swimmers.我们正设法培养出一两名有前途的年轻游泳选手。
7 uzpyi     
n.转化,转换,转变
参考例句:
  • he underwent quite a conversion.他彻底变了。
  • waste conversion is a part of the production process.废物处理是生产过程的一个组成部分。
8 iqjzf     
v.(clave;cleaved)粘着,粘住;坚持;依恋
参考例句:
  • it examines how the decision to quit gold or to cleave to it affected trade policies.论文分析了放弃或坚持金本位是如何影响贸易政策的。
  • those who cleave to the latter view include many conservative american politicians.坚持后一种观点的大多是美国的保守派政客。
9 anlx8     
adj.最后的,结局的,最终的
参考例句:
  • several schools face eventual closure.几所学校面临最终关闭。
  • both parties expressed optimism about an eventual solution.双方对问题的最终解决都表示乐观。
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