Distinct Annealing Temperature in Polymer:Fullerene:Polymer Ternary Blend Solar Cells

被引：90

作者：

Kim, Hwajeong ^{[1
,2
]}

Shin, Minjung ^{[1
]}

Kim, Youngkyoo ^{[1
]}

机构：

[1] Kyungpook Natl Univ, Dept Chem Engn, Organ Nanoelect Lab, Taegu 702701, South Korea

[2] Univ London Imperial Coll Sci Technol & Med, Inst Biomed Engn, London SW7 2AZ, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 04期

关键词：

Electrons - Fullerenes - Annealing - Polymer solar cells - Glass transition;

D O I：

10.1021/jp809589n

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：

A distinct thermal annealing temperature exhibiting a maximum efficiency was observed for polymer solar cells with a ternary blend film that consists of one soluble fullerene and two kinds of conjugated polymer (electron-donating polymer and electron-accepting polymer). The distinct sharp shape trend of device performance with annealing temperature has been assigned primarily to the influence of the electron-accepting polymer [poly(9,9-dioctylfluorene-co-benzothiadiazole) (F8BT)], since the glass transition temperature of F8BT was exactly the same as with the best annealing temperature. The performance of the best ternary blend solar cell made in this work was poorer than the well-optimized binary blend with the higher content (donor: acceptor = 1:1) of electron-donating polymer. However, it was slightly better than the comparative binary blend solar cell with the same content of electron-donating polymer (donor:acceptor = 1:2), indicative of further improvement in the performance of ternary blend solar cells through the control of blend composition and/or thickness.

引用

页码：1620 / 1623

页数：4

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