[全文听写]:
Hints:本文两个连字符,四处破折号。
Notre Dame
the journal ACS Nano
titanium dioxide
cadmium
"Sunbelievable."
Tom Sawyer
Instead of installing solar panels on your roof — how about just giving your house a new paint job? Of course you'd have to be sure to use solar paint. That's what a group of Notre Dame researchers has created, detailing the recipe in the journal ACS Nano. The paint contains nanoparticles of titanium dioxide — which gives whiteness to sunscreen and powdered sugar. The particles are coated with semiconducting cadmium nanocrystals, and mixed with water and alcohol, to create a golden yellow paste. The researchers dubbed the product "Sunbelievable." They brushed it onto a conductive glass electrode, and attached that to a counter-electrode, to create a complete circuit. When they shined light on the tiny solar cell, it pumped out a small current. The efficiency of the light-to-electricity conversion was only about one percent — much lower than the 10 to 15 percent efficiency of conventional silicon cells. But the researchers say this paint is relatively cheap, can be made in any color, and doesn't require a clean room to manufacture, like silicon cells — just a bench top. If they can up the efficiency a bit, a future Tom Sawyer could make an electric fence.
为了节能,除了在你家的房顶上装太阳能电池板,给你家重新粉刷一下怎么样?当然,你得确保用的是太阳能涂料哦。这种新材料是一群来自圣母大学的研究者创造的,在期刊《ACS纳米》上,他们详述了这种涂料的配方。 这种涂料包括纳米微粒二氧化钛,这是种能使防晒霜和糖粉变白的微粒。这种微粒表面涂覆着一层半导体镉纳米晶粒,与水和酒精混合,即会产生一层金黄色的涂层。研究者给这个产品取了个外号叫“不可思议的太阳”(或者直接叫“我的太阳”?呵呵)。他们把它涂上导电玻璃电极,然后把它连上反电极,形成了一个完整的回路。 当他们把光照射在微小的太阳能元件上时,它产生了一些细微的电流。光电转换的效率大约是1%,跟传统硅电池的10%-15%比起来,低了很多。 但是研究者也说这种涂料相对来说是便宜的,可以做成任何颜色,也不像硅元件那样需要一个干净的厂房来制作,在实验桌上就能搞定。如果它们能增加光电效率,一个未来的汤姆索亚说不定可以搞出个电围栏。 silicon cell 硅电池;硅元件