Singlet exciton transfer and fullerene triplet formation in polymer-fullerene blend films

被引：67

作者：

Cook, Steffan

Ohkita, Hideo

Durrant, James R. ^{[1
]}

Kim, Youngkyoo

Benson-Smith, Jessica J.

Nelson, Jenny

Bradley, Donal D. C.

机构：

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

[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2BW, England

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 10期

基金：

英国工程与自然科学研究理事会; 日本学术振兴会;

关键词：

D O I：

10.1063/1.2338528

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Photoluminescence and transient absorption measurements of poly(9,9-dioctylfluorene-alt-benzothiadiazole) (F8BT) and 1-(3-methoxycarbonyl)propyl-1-phenyl-(6,6)C-61 (PCBM) blend films reveal that optical excitation of F8BT results in formation of the singlet and triplet excited states of PCBM. These observations are assigned to rapid (> 10(11) s(-1)) singlet energy transfer from F8BT to PCBM, followed by intersystem crossing to the PCBM triplet state. (c) 2006 American Institute of Physics.

引用

页数：3