Charge transport studies on novel PT-derivatives with hydrophilic anchoring groups

被引：1

作者：

Nyman, Mathias ^{[1
,2
]}

Akitsu, Kenta ^{[3
]}

Otani, Naoki ^{[4
]}

Matsumura, Mitsunobu ^{[4
]}

Kubo, Takaya ^{[3
]}

Segawa, Hiroshi ^{[3
]}

Osterbacka, Ronald ^{[1
,2
]}

机构：

[1] Abo Akad Univ, Phys Dept Nat Sci, SF-20500 Turku, Finland

[2] Abo Akad Univ, Ctr Funct Mat, SF-20500 Turku, Finland

[3] Univ Tokyo, Res Ctr Adv Sci & Technol, Meguro Ku, Tokyo 1538904, Japan

[4] Nissan Chem Ind Co Ltd, Synth Res Dept, Funabashi, Chiba 2748807, Japan

来源：

SYNTHETIC METALS | 2013年 / 164卷

基金：

日本学术振兴会; 芬兰科学院; 日本科学技术振兴机构;

关键词：

Polymer; Hybrid solar cell; Charge transport; Photo-CELIV;

D O I：

10.1016/j.synthmet.2012.12.033

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using charge extraction techniques we have clarified the charge transport properties of novel polythiophene derivatives intended for use as sensitizers in polymer sensitized solar cells. The polymers are of low molecular weight in order to enable penetration into a mesoporous titanium dioxide film. Hydrophilic anchoring units are attached to the thiophene ring to facilitate attachment of the polymer to the titanium dioxide. The hole transporting properties were determined in order to clarify the possibility of using the polymers both as sensitizers and hole transporting material in a hybrid type device. We found that the mobilities are in the range of 1-4 x 10(-8) cm(2)/(V s). The low mobility is compensated by very long charge carrier lifetimes in the order of 100 ms resulting in a very promising charge carrier drift distance of 1 mu m. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：60 / 63

页数：4

共 30 条

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