Processing additives for improved efficiency from bulk heterojunction solar cells

被引：1498

作者：

Lee, Jae Kwan ^{[1
]}

Ma, Wan Li ^{[1
]}

Brabec, Christoph J. ^{[2
]}

Yuen, Jonathan ^{[1
]}

Moon, Ji Sun ^{[1
]}

Kim, Jin Young ^{[1
]}

Lee, Kwanghee ^{[1
]}

Bazan, Guillermo C. ^{[1
]}

Heeger, Alan J. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Ctr Polymers & Organ Solids, Santa Barbara, CA 93106 USA

[2] Konarka Technol Austria, Linz, Austria

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2008年 / 130卷 / 11期

关键词：

D O I：

10.1021/ja710079w

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two criteria for processing additives introduced to control the morphology of bulk heterojunction (BHJ) materials for use in solar cells have been identified: (i) selective (differential) solubility of the fullerene component and (ii) higher boiling point than the host solvent. Using these criteria, we have investigated the class of 1,8-di(R)octanes with various functional groups (R) as processing additives for BHJ solar cells. Control of the BHJ morphology by selective solubility of the fullerene component is demonstrated using these high boiling point processing additives. The best results are obtained with R = Iodine (1). Using 1,8-diiodooctane as the processing additive, the efficiency of the BHJ solar cells was improved from 3.4% (for the reference device) to 5.1 %.

引用

页码：3619 / 3623

页数：5

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