Broadband absorption enhancement in organic solar cells with an antenna layer through surface-plasmon mediated energy transfer
Broadband absorption enhancement in organic solar cells with an antenna layer through surface-plasmon mediated energy transfer
复制标题
通过表面等离子体介导的能量转移增强具有天线层的有机太阳能电池的宽带吸收
DOI：
10.1063/1.4922191
复制
发表时间：
2015-06-01
影响因子：
4
通讯作者：
Sun, Hong-Bo
中科院分区：
文献类型：
--
作者：
Jin, Yu;Feng, Jing;Sun, Hong-Bo
我们展示了一种策略，以实现宽带增强吸收的顶部入射倒置的有机太阳能电池（OSC）的周期性波纹金属阳极的顶部采用外部天线层。表面等离子体激元（SPPs）被激发在周期性波纹金属阳极的相对界面上，其介导能量从天线层通过阳极传递到有源层。通过调谐SPP共振以与天线的发射和活性材料的吸收两者一致，OSC的吸收被显著加宽和增强。与没有天线层的OSC相比，功率转换效率提高了16%。
We demonstrated a strategy to realize broadband enhanced absorption in the top-incident inverted organic solar cells (OSCs) by employing an external antenna layer on top of the periodic corrugated metallic anode. Surface-plasmon polaritons (SPPs) are excited on the opposite interfaces of the periodic corrugated metallic anode, which mediate the energy transfer from the antenna layer to the active layer through the anode. The absorption of the OSCs is significantly broadened and enhanced by tuning the SPP resonance to coincide with both the emission of the antenna and the absorption of the active material. The power conversion efficiency exhibits an enhancement of 16% compared to that of the OSCs without the antenna layer.