Au nanorods-incorporated plasmonic-enhanced inverted organic solar cells

作者：Peng Ling; Mei Yang; Chen Shu Fen; Zhang Yu Pei; Hao Jing Yu; Deng Ling Ling; Huang Wei

来源：Chinese Physics B, 2015, 24(11): 115202.

DOI：10.1088/1674-1056/24/11/115202

• organic solar cells
• nanorods
• LSPR effect
• scattering

The effect of Au nanorods (NRs) on optical-to-electric conversion efficiency is investigated in inverted polymer solar cells, in which Au NRs are sandwiched between two layers of ZnO. Accompanied by the optimization of thickness of ZnO covered on Au NRs, a high-power conversion efficiency of 3.60% and an enhanced short-circuit current density (JSC) of 10.87 mA/cm(2) are achieved in the poly(3-hexylthiophene): [6,6]-phenyl-C61-butyric acid methyl ester (P3HT: PC60BM)-based inverted cell and the power conversion efficiency (PCE) is enhanced by 19.6% compared with the control device. The detailed analyses of the light absorption characteristics, the simulated scattering induced by Au NRs, and the electromagnetic field around Au NRs show that the absorption improvement in the photoactive layer due to the light scattering from the longitudinal axis and the near-field increase around Au NRs induced by localized surface plasmon resonance plays a key role in enhancing the performances.

• 出版日期2015-11
• 单位南京邮电大学