Dual-periodic-corrugation-induced broadband light absorption enhancement in organic solar cells
Dual-periodic-corrugation-induced broadband light absorption enhancement in organic solar cells
复制标题
有机太阳能电池中双周期波纹诱导的宽带光吸收增强
DOI：
10.1016/j.orgel.2015.09.021
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发表时间：
2015-12-01
影响因子：
3.2
通讯作者：
Sun, Hong-Bo
中科院分区：
文献类型：
--
作者：
Bi, Yan-Gang;Feng, Jing;Sun, Hong-Bo
We demonstrate an efficient approach to realize broadband light trapping in organic solar cells (OSCs) by integrating two-dimensional dual periodic corrugations. The dual-periodic corrugations consist of two set different periodic gratings, and have the effect to excite the surface plasmon-polariton (SPP) resonance associated with the cathode/organic interface in broadband wavelength region by adjusting befitting periods of the microstructures. Experimental and numerical results demonstrate that light absorption in OSCs has been enhanced in broadband owing to the effect of SPP-induced field enhancement. The short-circuit photocurrent density is improved from 4.072 to 5.365 mA/cm(2), and a 31% enhancement of power conversion efficiency has been obtained compared to the conventional planar devices. (C) 2015 Elsevier B.V. All rights reserved.
