Interlayer adhesion in roll-to-roll processed flexible inverted polymer solar cells

被引：178

作者：

Dupont, Stephanie R. ^{[1
]}

Oliver, Mark ^{[1
]}

Krebs, Frederik C. ^{[2
]}

Dauskardt, Reinhold H. ^{[1
]}

机构：

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

[2] Tech Univ Denmark, Riso Natl Lab Sustainable Energy, DK-4000 Roskilde, Denmark

来源：

SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2012年 / 97卷

关键词：

Adhesion; Fracture energy; Interfaces; Flexible; Polymer solar cells; Thin films; MORPHOLOGY; MODEL;

D O I：

10.1016/j.solmat.2011.10.012

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The interlayer adhesion of roll-to-roll processed flexible inverted P3HT:PCBM bulk heterojunction (BHJ) polymer solar cells is reported. Poor adhesion between adjacent layers may result in loss of device performance from delamination driven by the thermomechanical stresses in the device. We demonstrate how a thin-film adhesion technique can be applied to flexible organic solar cells to obtain quantitative adhesion values. For the P3HT:PCBM-based BHJ polymer solar cells, the interface of the BHJ with the conductive polymer layer PEDOT:PSS was found to be the weakest. The adhesion fracture energy varied from 1.6 J/m(2) to 0.1 J/m(2) depending on the composition of the P3HT:PCBM layer. Post-deposition annealing time and temperature were shown to increase the adhesion at this interface. Additionally the PEDOT:PSS cells are compared with V2O5 cells whereby adhesive failure marked by high fracture energies was observed. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：171 / 175

页数：5

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