Characterization of the Organic Thin Film Solar Cells with Active Layers of PTB7/PC71BM Prepared by Using Solvent Mixtures with Different Additives

被引：19

作者：

Ito, Masakazu ^{[1
]}

Palanisamy, Kumar ^{[1
]}

Kumar, Abhirami ^{[1
]}

Murugesan, Vijay Srinivasan ^{[1
]}

Shin, Paik-Kyun ^{[2
]}

Tsuda, Norio ^{[1
]}

Yamada, Jun ^{[1
]}

Ochiai, Shizuyasu ^{[1
]}

机构：

[1] Aichi Inst Technol, Dept Elect Engn, Toyota, Aichi 4700392, Japan

[2] Inha Univ, Dept Elect Engn, Inchon 402751, South Korea

来源：

INTERNATIONAL JOURNAL OF PHOTOENERGY | 2014年 / 2014卷

关键词：

POLYMER; EFFICIENCY;

D O I：

10.1155/2014/694541

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Organic thin film solar cells (OTFSCs) were fabricated with blended active layers of poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b: 4,5-b'.]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl) carbonyl] thieno[3,4-b]thiophenediyl]](PTB7)/[6,6]-phenyl-C-71-butyric (PC 71 BM). The performances of active layers are prepared in chlorobenzene (CB) with different additives of 1-chloronaphthalene (CN) and 1,8-Diiodooctane (DIO) by a wet process with spin coating technique. The effects of different solvent additives on photovoltaic parameters such as fill factor, short circuit current density, and power conversion efficiency of active layers are reported. The absorption and surface morphology of the active layers are investigated using UV-visible spectroscopy and atomic force microscopy, respectively. The results indicate that structural and morphological changes were induced by the additives with solvent. The current density-voltage (J-V) characteristics of photovoltaic cells were measured under the illumination of simulated solar light with 100 mW/cm(2) (AM 1.5 G) by an Oriel 1000 W solar simulator. The OTFSCs of PTB7/PC71 BM prepared with organic solvent additives of DIO+CN show more improved PCE of 4.96% by spin coating method.

引用

页数：8

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