Influence of Photon Excess Energy on Charge Carrier Dynamics in a Polymer‐Fullerene Solar Cell
Influence of Photon Excess Energy on Charge Carrier Dynamics in a Polymer‐Fullerene Solar Cell
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光子过剩能量对聚合物富勒烯太阳能电池载流子动力学的影响
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
S. Meskers
中科院分区：
文献类型：
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作者：
Tom G. J. van der Hofstad;D. Di Nuzzo;Mauricio van den Berg;R. Janssen;S. Meskers
聚合物-富勒烯太阳能电池经由供体-受体界面处的电荷转移跃迁的光激发导致产生电荷载流子，所述电荷载流子显示与在较高光子能量下通过激发共轭聚合物所产生的那些电荷载流子难以区分的动力学。这表明在聚合物和富勒烯之间的光诱导电子转移中释放的过量能量对于电荷载流子的产生不是必需的。
Optical excitation of a polymer-fullerene solar cell via the charge-transfer transition at the donor-acceptor interface, leads to generation of charge carriers displaying dynamics that are indistinguishable from those generated by excitation of the conjugated polymer at higher photon energy. This indicates that excess energy liberated in the photoinduced electron transfer between polymer and fullerene is not essential for the charge carrier generation.