Mixed-flow design for microfluidic printing of two-component polymer semiconductor systems
Mixed-flow design for microfluidic printing of two-component polymer semiconductor systems
复制标题
双组分聚合物半导体系统微流体印刷的混合流设计
DOI：
10.1073/pnas.2000398117
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发表时间：
2020-07
期刊：
影响因子：
--
通讯作者：
Tobin J. Marks
中科院分区：
文献类型：
--
作者：
Gang Wang;Liang-Wen Feng;Wei Huang;Subhrangsu Mukherjee d;Yao Chen;Dengke Shen;Binghao Wang;Joseph Strzalka;Ding Zheng;Ferdin;S;Melkonyan;Jinhui Yan f;J. Fraser Stoddart;Simone Fabiano;Dean M. DeLongchamp;Meifang Zhu;Antonio Facchetti;Tobin J. Marks
Significance Blade coating is a promising methodology for the large-scale printing of polymer electronics, affording nonnegligible microstructure control and properties enhancement. Nevertheless, in two-component systems, the optical/electrical/physical properties are largely dominated by phase separation and domain purity phenomena that are challenging to control. Here, we report a mixed-flow microfluidic printing approach to phase purity control, enabled by a printing blade design based on fluid flow simulations. The result is 50% efficiency enhancement for printed all-polymer solar cells vs. conventional printing and similar enhancements for polymer transistors. Mixed flow is a versatile approach to control domain purity in two-component polymeric semiconductor systems and offers a methodology for printing high-performance soft-matter electronics. The rational creation of two-component conjugated polymer systems with high levels of phase purity in each component is challenging but crucial for realizing printed soft-matter electronics. Here, we report a mixed-flow microfluidic printing (MFMP) approach for two-component π-polymer systems that significantly elevates phase purity in bulk-heterojunction solar cells and thin-film transistors. MFMP integrates laminar and extensional flows using a specially microstructured shear blade, designed with fluid flow simulation tools to tune the flow patterns and induce shear, stretch, and pushout effects. This optimizes polymer conformation and semiconducting blend order as assessed by atomic force microscopy (AFM), transmission electron microscopy (TEM), grazing incidence wide-angle X-ray scattering (GIWAXS), resonant soft X-ray scattering (R-SoXS), photovoltaic response, and field effect mobility. For printed all-polymer (poly[(5,6-difluoro-2-octyl-2H-benzotriazole-4,7-diyl)-2,5-thiophenediyl[4,8-bis[5-(2-hexyldecyl)-2-thienyl]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl]-2,5-thiophenediyl]) [J51]:(poly{[N,N′-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)}) [N2200]) solar cells, this approach enhances short-circuit currents and fill factors, with power conversion efficiency increasing from 5.20% for conventional blade coating to 7.80% for MFMP. Moreover, the performance of mixed polymer ambipolar [poly(3-hexylthiophene-2,5-diyl) (P3HT):N2200] and semiconducting:insulating polymer unipolar (N2200:polystyrene) transistors is similarly enhanced, underscoring versatility for two-component π-polymer systems. Mixed-flow designs offer modalities for achieving high-performance organic optoelectronics via innovative printing methodologies.
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DOI：
10.1002/anie.201608644
发表时间：
2017-01-02
期刊：
Angewandte Chemie (International ed. in English)
影响因子：
--
作者：
Duan C;Zango G;García Iglesias M;Colberts FJ;Wienk MM;Martínez-Díaz MV;Janssen RA;Torres T
通讯作者：
Torres T
影响因子：
8.6
作者：
Hajime Tanaka;Takeaki Araki
通讯作者：
Hajime Tanaka;Takeaki Araki
全聚合物%20Solar%20Cells%20Based%20on%20a%20共轭%20聚合物%20含%20硅氧烷官能化%20Side%20Chains%20with%20效率%20over%2010%
影响因子：
29.4
作者：
Fan, Baobing;Ying, Lei;Cao, Yong
通讯作者：
Cao, Yong
影响因子：
16.6
作者：
Gu X;Shaw L;Gu K;Toney MF;Bao Z
通讯作者：
Bao Z
影响因子：
5.5
作者：
S. Moghadam;Indranil Saha Dalal;R. Larson
通讯作者：
S. Moghadam;Indranil Saha Dalal;R. Larson