Nanostructured layers of a new cross-linkable poly(3-hexylthiophene) in organic photovoltaic cells

被引：24

作者：

Brotas, Graca ^{[1
]}

Farinhas, Joana ^{[1
]}

Ferreira, Quirina ^{[1
]}

Morgado, Jorge ^{[1
,2
]}

Charas, Ana ^{[1
]}

机构：

[1] Inst Super Tecn, Inst Telecomunicacoes, P-1049001 Lisbon, Portugal

[2] Inst Super Tecn UTL, Dept Bioengn, P-1049001 Lisbon, Portugal

来源：

SYNTHETIC METALS | 2012年 / 162卷 / 23期

关键词：

Organic photovoltaic cells; Conjugated polymers; Cross-linkable polymers; P3HT; OPEN-CIRCUIT VOLTAGE; INTERPENETRATING NETWORK; SOLAR-CELLS; EFFICIENT; BLENDS; ORIGIN;

D O I：

10.1016/j.synthmet.2012.10.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the synthesis of a new cross-linkable poly(3-hexylthiophene) copolymer, P3HT-Ox10, consisting on regioregular blocks of 3-hexylthiophene and 10% molar of an oxetane-functionalized thiophene comonomer. This copolymer was used in the fabrication of organic photovoltaics (OPVs) upon combination with 1-(3-methoxycarbonyl)propyl-1-phenyl-(6,6)C-61 (PCBM), either as blends or in bilayer structures. Bilayer devices with a nanostructured donor/acceptor interface were fabricated using a patterning process based on the phase separation in P3HT-Ox10:polystyrene blends. Columnar-grain films of cross-linked P3HT-Ox10 with diameters of ca. 140nm were thereby obtained. These are the lowest dimensions achieved so far by this approach. Despite the modest power conversion efficiencies achieved, we believe that this easily implemented approach is very effective to prepare OPVs with well-defined morphologies. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：2052 / 2058

页数：7

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