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【奖励】本帖被评价39次，作者dulihanqiu增加金币 28.2 个

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dulihanqiu

铁杆木虫 (正式写手)

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[资源] nature communication上的最新发表效率达到10.6%的有机太阳能电池文章已有1人参与

A polymer tandem solar cell with 10.6% power conversion efﬁciency
Jingbi You1, *, Letian Dou1,*, Ken Yoshimura2, Takehito Kato2,, Kenichiro Ohya2, Tom Moriarty3, Keith Emery3,Chun-Chao Chen1, Jing Gao1, Gang Li1& Yang Yang1,4
An effective way to improve polymer solar cell efﬁciency is to use a tandem structure, as a broader part of the spectrum of solar radiation is used and the thermalization loss of photon energy is minimized. In the past, the lack of high-performance low-bandgap polymers was the major limiting factor for achieving high-performance tandem solar cell. Here we report the development of a high-performance low bandgap polymer (bandgap o1.4 eV), poly[2,7-(5,5-bis-(3,7-dimethyloctyl)-5H-dithieno[3,2-b:20,30-d]pyran)-alt-4,7-(5,6-diﬂuoro-2,1,3-ben-
zothia diazole)] with a bandgap of 1.38 eV, high mobility, deep highest occupied molecular orbital. As a result, a single-junction device shows high external quantum efﬁciency of460% and spectral response that extends to 900 nm, with a power conversion efﬁciency of 7.9%. The polymer enables a solution processed tandem solar cell with certiﬁed 10.6% power conversion efﬁciency under standard reporting conditions (25 1C, 1,000Wm2, IEC 60904-3 global), which is the ﬁrst certiﬁed polymer solar cell efﬁciency over 10%.以上是原文摘要，版主还要我写个人见解啊。效率摆在那里啊，好几个月前就有各种传言说效率突破10了，但是都是各种新闻，还没有真正的文章报道。这次是第一次有文献报道有机太阳能电池的效率突破了10了，虽然是叠层的。关于叠层的，似乎里面有些技术难点在里面，就那几个组在做，按着文献说的我们做出来效果都不好，不知道诀窍在哪里。大家有兴趣讨论讨论这个吗？

[ Last edited by dulihanqiu on 2013-2-27 at 08:57 ]

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