The operation mechanism of poly(9,9-dioctylfluorenyl-2,7-diyl) dots in high efficiency polymer solar cells

被引：4

作者：

Liu, Chunyu ^{[1
]}

He, Yeyuan ^{[1
]}

Zhang, Xinyuan ^{[1
]}

Li, Zhiqi ^{[1
]}

Li, Jinfeng ^{[1
]}

Shen, Liang ^{[2
,3
]}

Zhang, Zhihui ^{[1
]}

Guo, Wenbin ^{[1
]}

Ruan, Shengping ^{[1
]}

机构：

[1] Jilin Univ, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China

[2] Univ Nebraska, Dept Mech & Mat Engn, Lincoln, NE 68588 USA

[3] Univ Nebraska, Nebraska Ctr Mat & Nanosci, Lincoln, NE 68588 USA

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 19期

基金：

中国国家自然科学基金;

关键词：

CONJUGATED POLYMER; ACTIVE LAYER; NANOPARTICLES; DEVICES; ENHANCEMENT; PERFORMANCE; MORPHOLOGY; CONVERSION; VOLTAGE;

D O I：

10.1063/1.4921395

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The highly efficient polymer solar cells were realized by doping poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) dots into active layer. The dependence of doping amount on devices performance was investigated and a high efficiency of 7.15% was obtained at an optimal concentration, accounting for a 22.4% enhancement. The incorporation of PFO dots (Pdots) is conducted to the improvement of J(sc) and fill factor mainly due to the enhancement of light absorption and charge transport property. Pdots blended in active layer provides an interface for charge transfer and enables the formation of percolation pathways for electron transport. The introduction of Pdots was proven an effective way to improve optical and electrical properties of solar cells. (C) 2015 AIP Publishing LLC.

引用

页数：5

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