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daruozhi

金虫 (小有名气)


[资源] 《Science》关于有机太阳能电池的最新文章:OPV外量子效率逾100%

Science, 2013, April 19, 刊文:
Singlet exciton fission transforms a molecular singlet excited state into two triplet states, each with half the energy of the original singlet. In solar cells, it could potentially double the photocurrent from high-energy photons. It was demonstrated that organic solar cells that exploit singlet exciton fission in pentacene to generate more than one electron per incident photon in a portion of the visible spectrum. Using a fullerene acceptor, a poly(3-hexylthiophene) exciton confinement layer, and a conventional optical trapping scheme, we show a peak external quantum efficiency of (109 +/- 1)% at wavelength λ = 670 nanometers for a 15-nanometer-thick pentacene film. The corresponding internal quantum efficiency is (160 +/- 10)%. Analysis of the magnetic field effect on photocurrent suggests that the triplet yield approaches 200% for pentacene films thicker than 5 nanometers.[ Last edited by daruozhi on 2013-4-26 at 15:14 ]
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dzh177

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顶一下,感谢分享!写的不错
7楼2013-04-27 13:11:21
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litvenus

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4楼2013-04-26 23:28:58
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infii2楼
2013-04-26 15:19   回复  
五星好评  顶一下,感谢分享!
liqi5253楼
2013-04-26 16:18   回复  
五星好评  顶一下,感谢分享!
chsj5楼
2013-04-27 00:16   回复  
五星好评  顶一下,感谢分享!
2013-04-27 08:09   回复  
五星好评  顶一下,感谢分享!
2013-04-27 16:47   回复  
三星好评  顶一下,感谢分享!
2013-04-27 18:06   回复  
三星好评   顶一下
2013-04-27 18:29   回复  
五星好评  顶一下,感谢分享!
ddsuper12楼
2013-04-27 20:13   回复  
五星好评  顶一下,感谢分享!
wenium13楼
2013-04-27 22:02   回复  
五星好评  顶一下,感谢分享!
囧囧猫14楼
2013-04-28 00:01   回复  
谢谢分享。 [ 发自手机版 http://muchong.com/3g ]
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