Tuning the Properties of Polymer Bulk Heterojunction Solar Cells by Adjusting Fullerene Size to Control Intercalation

被引：224

作者：

Cates, Nichole C. ^{[1
]}

Gysel, Roman ^{[1
]}

Beiley, Zach ^{[1
]}

Miller, Chad E. ^{[2
]}

Toney, Michael F. ^{[2
]}

Heeney, Martin ^{[3
]}

McCulloch, Iain ^{[3
]}

McGehee, Michael D. ^{[1
]}

机构：

[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA

[2] Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA

[3] Univ London Imperial Coll Sci Technol & Med, Dept Chem, London SW7 2AZ, England

来源：

NANO LETTERS | 2009年 / 9卷 / 12期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

RECOMBINATION;

D O I：

10.1021/nl9023808

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate that intercalation of fullerene derivatives between the side chains of conjugated polymers can be controlled by adjusting the fullerene size and compare the properties of intercalated and nonintercalated poly(2,5-bis(3-hexadecylthiophen-2-yl)thieno[3,2-b]thiophene (pBTTT):fullerene blends. The intercalated blends, which exhibit optimal solar-cell performance at 1:4 polymer:fullerene by weight, have better photoluminescence quenching and lower absorption than the nonintercalated blends, which optimize at 1:1. Understanding how intercalation affects performance will enable more effective design of polymer:fullerene solar cells.

引用

页码：4153 / 4157

页数：5

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