Semitransparent polymer solar cells with one-dimensional (WO3/LiF)N photonic crystals
Semitransparent polymer solar cells with one-dimensional (WO3/LiF)N photonic crystals
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DOI：
10.1063/1.4760229
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发表时间：
2012-10
影响因子：
4
通讯作者：
Wenjuan Yu;Liang Shen;Yongbing Long;Wenbin Guo;Fanxu Meng;S. Ruan;Xu Jia;H. Ma;Weiyou Chen
中科院分区：
文献类型：
--
作者：
Wenjuan Yu;Liang Shen;Yongbing Long;Wenbin Guo;Fanxu Meng;S. Ruan;Xu Jia;H. Ma;Weiyou Chen
为了提高器件的效率，在半透明聚合物太阳电池的银阴极上沉积了一维(WO_3/LiF)N光子晶体(1DPC)。具有8对WO_3/LiF的1DPC作为光子带隙内的分布反射器。获得了2.58%的功率转换效率，与没有1DPC的传统器件相比，效率提高了26.3%。具有8对WO_3/LiF的器件在400-600 nm波长范围内的平均透过率几乎为零。这意味着光在有源层中被充分吸收。增强的光吸收使效率显著提高。
One-dimensional (WO3/LiF)N photonic crystals (1DPCs) are deposited on the Ag cathode of the semitransparent polymer solar cells to improve the efficiency of the device. The 1DPCs with 8 pair of WO3/LiF act as distributed reflectors within the photonic bandgap. Then, power conversion efficiency of 2.58% is achieved and there is an improvement of 26.3% in the efficiency when compared with that of the conventional device without the 1DPCs. The average transmittance of the device with 8 pair of WO3/LiF is almost zero in 400–600 nm wavelength range. It means that the light is absorbed sufficiently in the active layer. The enhanced light absorption results in efficiency improvement remarkably.