Tailoring Nanoscale Morphology of Polymer:Fullerene Blends Using Electrostatic Field

被引：13

作者：

Elshobaki, Moneim ^{[1
,2
]}

Gebhardt, Ryan ^{[2
]}

Carr, John ^{[3
]}

Lindemann, William ^{[2
]}

Wang, Wenjie ^{[6
]}

Grieser, Eric ^{[4
]}

Venkatesan, Swaminathan ^{[7
]}

Ngo, Evan ^{[7
]}

Bhattacharjee, Ujjal ^{[5
]}

Strzalla, Joseph

Jiang, Zhang ^{[8
]}

Qiao, Qiquan ^{[7
]}

Petrich, Jacob ^{[5
]}

Vaknin, David ^{[4
,6
]}

Chaudhary, Sumit ^{[2
,3
]}

机构：

[1] Mansoura Univ, Dept Phys, Mansoura 35516, Egypt

[2] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA

[3] Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA

[4] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA

[5] Iowa State Univ, Dept Chem, Ames, IA 50011 USA

[6] US DOE, Ames Lab, Ames, IA 50011 USA

[7] South Dakota State Univ, Dept Elect Engn, Brookings, SD 57007 USA

[8] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA

来源：

ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 03期

基金：

美国国家科学基金会;

关键词：

P3HT; fullerene; nanomorphology; electrostatic field; Van de Graaff OPVs; POLYMER SOLAR-CELLS; ELECTRIC-FIELD; CHARGE-TRANSPORT; 11-PERCENT EFFICIENCY; TANDEM POLYMER; THIN-FILMS; MOBILITY; NANOMORPHOLOGY; POLY(3-HEXYLTHIOPHENE); PHOTOGENERATION;

D O I：

10.1021/acsami.6b10870

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To tailor the nanomorphology in polymer/fullerene blends, we study the effect of electrostatic field (E-field) on the solidification of poly(3-hexylthiophene-2, 5-diyl) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PC60BM) bulk heterojunction (BHJ). In addition to control; wet P3HT:PC60BM thin films were exposed to E-field of Van de Graaff (VDG) generator at three different directions horizontal (H), tilted (T), and vertical (V) relative to the plane of the substrate. Surface and bulk characterizations of the field-treated BHJs affirmed that fullerene molecules can easily penetrate the spaghetti-like P3HT and move up and down following the E-field. Using E-field treatment, we achieved favorable morphologies-with efficient charge separation, transport, and collection. We improve; (1) the hole mobility values up to 19.4 X 10(-4) +/- 1.6 x 10(-4) cm(2) V(-1)s(-1) and (2) the power conversion efficiency (PCE) of conventional and inverted OPVs up to 2.58 +/- 0.02% and 4.1 +/- 0.40%, respectively. This E-field approach can serve as a new morphology-tuning technique, which is generally applicable to other polymer-fullerene systems.

引用

页码：2678 / 2685

页数：8

共 56 条

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