Investigation of p-dopant diffusion in polymer films and bulk heterojunctions: Stable spatially-confined doping for all-solution processed solar cells

被引:42
|
作者
Dai, An [1 ]
Wan, Alan [2 ]
Magee, Charles [2 ]
Zhang, Yadong [3 ,4 ]
Barlow, Stephen [3 ,4 ]
Marder, Seth R. [3 ,4 ]
Kahn, Antoine [1 ]
机构
[1] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA
[2] EAG, East Windsor, NJ 08520 USA
[3] Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA
[4] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
基金
美国国家科学基金会;
关键词
Lamination; Polymer; Doping; Molybdenum complex; Diffusion; ORGANIC ELECTRONIC MATERIALS; TRANSITION-METAL OXIDES; LIGHT-EMITTING-DIODES; TRANSPORT; EXCITONS; PHTHALOCYANINE; SEMICONDUCTORS; INJECTION;
D O I
10.1016/j.orgel.2015.04.023
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The spatial stability of the soluble p-dopant molybdenum tris[1-(methoxycarbonyl)-2-(trifluoromethyl)-ethane-1,2-dithiolene] in polymer and polymer blend films is investigated via secondary ion mass spectrometry and current-voltage measurements. Bi-layer and tri-layer model structures, P3HT/doped P3HT and P3HT: ICBA/doped P3HT/P3HT: ICBA respectively, are fabricated using soft-contact transfer lamination to study the diffusion of the dopant. While the dopant is very mobile in pure P3HT, it is far more stable at the interface with the P3HT: ICBA bulk heterojunction. Our findings suggest a promising route to achieve spatially-confined doping with long-term stability, leading to hole-collection/injection contacts for all-solution processed polymer devices. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:151 / 157
页数:7
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