Noise-induced quantum coherence drives photo-carrier generation dynamics at polymeric semiconductor heterojunctions
Noise-induced quantum coherence drives photo-carrier generation dynamics at polymeric semiconductor heterojunctions
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DOI：
10.1038/ncomms4119
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发表时间：
2014-01-01
影响因子：
16.6
通讯作者：
Silva, Carlos
中科院分区：
文献类型：
--
作者：
Bittner, Eric R.;Silva, Carlos
在这里，我们报告一个激子/晶格模型的聚合物半导体异质结中的初级光激发的电子动力学，包括聚合物π-堆叠，充满活力的无序和声子弛豫。我们的模型表明，在聚合物/富勒烯异质结系统中，由环境涨落引起的共振隧穿过程将光激发直接耦合到光电流，
Here we report on an exciton/lattice model of the electronic dynamics of primary photo excitations in a polymeric semiconductor heterojunction that includes both polymer pi-stacking, energetic disorder and phonon relaxation. Our model indicates that that in polymer/fulerene heterojunction systems, resonant tunnelling processes brought about by environmental fluctuations couple photo excitations directly to photocurrent producing charge-transfer states on