Polaron recombination in pristine and annealed bulk heterojunction solar cells
Polaron recombination in pristine and annealed bulk heterojunction solar cells
复制标题
DOI：
10.1063/1.3005593
复制
发表时间：
2008-10-20
影响因子：
4
通讯作者：
Dyakonov, V.
中科院分区：
文献类型：
--
作者：
Deibel, C.;Baumann, A.;Dyakonov, V.
我们利用依赖于温度的线性递增电压法提取光致电荷，确定了原始和退火聚噻吩-富勒烯混合太阳能电池中极化子复合的主要损失机制。在原始样品中，我们发现了强烈的温度依赖性双分子极化子重组率，与朗格万理论相比，它降低了。对于退火后的样品，我们观察到极化子衰减率几乎独立于载流子浓度的三阶。(C) 2008年美国物理研究所。(DOI: 10.1063/1.3005593)。
We determined the dominant polaron recombination loss mechanism in pristine and annealed polythiophene:fullerene blend solar cells by applying the photoinduced charge extraction by linearly increasing voltage method in dependence on temperature. In pristine samples, we find a strongly temperature-dependent bimolecular polaron recombination rate, which is reduced as compared to the Langevin theory. For the annealed sample, we observe a polaron decay rate which follows a third order of carrier concentration almost temperature independently. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3005593].