Fine Optimization of Morphology Evolution Kinetics with Binary Additives for Efficient Non-Fullerene Organic Solar Cells

被引：28

作者：

Chen, Jianya ^{[1
,2
]}

Bi, Zhaozhao ^{[1
]}

Xu, Xianbin ^{[1
]}

Zhang, Qianqian ^{[3
]}

Yang, Shengchun ^{[1
,2
]}

Guo, Shengwei ^{[4
]}

Yan, Hongping ^{[5
]}

You, Wei ^{[3
]}

Ma, Wei ^{[1
,6
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Sch Sci, MOE Key Lab Nonequilibrium Synth & Modulat Condes, Xian 710049, Shaanxi, Peoples R China

[3] Univ North Carolina Chapel Hill, Dept Chem, Chapel Hill, NC 27599 USA

[4] North Minzu Univ, Coll Mat Sci & Engn, Yinchuan 750021, Peoples R China

[5] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

[6] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Guangdong, Peoples R China

来源：

ADVANCED SCIENCE | 2019年 / 6卷 / 06期

关键词：

binary solvent additives; in situ characterization; kinetics; morphology; polymer solar cells; PROCESSING ADDITIVES; PHOTOVOLTAIC CELLS; ELECTRON-ACCEPTOR; PHASE-SEPARATION; PERFORMANCE; DONOR;

D O I：

10.1002/advs.201801560

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The power conversion efficiency of polymer solar cells (PSCs) is strongly affected by active layer morphology. Here, two solvent additives (ODT: octance-1,8-dithiol; DIO: 1,8-diiodooctane) are used to optimize the bulk heterojunction morphology of FTAZ:ITIC-Th based PSCs and approximate to 11% efficiency is obtained, which is 10% higher than the untreated device. Based on the morphological characterizations, the influence of binary solvent additives on manipulating molecular packing and phase separation of blend films is successfully revealed. More importantly, in situ grazing incidence wide-angle X-ray scattering characterization is adopted to explore the crucial role played by these two solvent additives at different stages of the film-forming process, that is, ODT influences the initial stage of the film-forming process, while DIO later establishes the ultimate photoactive film formation. Due to the impacts of two additives at different film processing stages, an optimal ratio of ODT:DIO (0.375%:0.125%) is obtained, which helps in realizing the optimized morphology.

引用

页数：7

共 41 条

[1] Effect of mixed solvents on PCDTBT:PC70BM based solar cells [J].

Alem, Salima ;

Chu, Ta-Ya ;

Tse, Shing C. ;

Wakim, Salem ;

Lu, Jianping ;

Movileanu, Raluca ;

Tao, Ye ;

Belanger, Francis ;

Desilets, Denis ;

Beaupre, Serge ;

Leclerc, Mario ;

Rodman, Sheila ;

Waller, David ;

Gaudiana, Russell .

ORGANIC ELECTRONICS, 2011, 12 (11) :1788-1793

[2] The Importance of Fullerene Percolation in the Mixed Regions of Polymer-Fullerene Bulk Heterojunction Solar Cells [J].

Bartelt, Jonathan A. ;

Beiley, Zach M. ;

Hoke, Eric T. ;

Mateker, William R. ;

Douglas, Jessica D. ;

Collins, Brian A. ;

Tumbleston, John R. ;

Graham, Kenneth R. ;

Amassian, Aram ;

Ade, Harald ;

Frechet, Jean M. J. ;

Toney, Michael F. ;

McGehee, Michael D. .

ADVANCED ENERGY MATERIALS, 2013, 3 (03) :364-374

[3] Low-Temperature Control of Nanoscale Morphology for High Performance Polymer Photovoltaics [J].

Campbell, Andrew R. ;

Hodgkiss, Justin M. ;

Westenhoff, Sebastian ;

Howard, Ian A. ;

Marsh, Robert A. ;

McNeill, Christopher R. ;

Friend, Richard H. ;

Greenham, Neil C. .

NANO LETTERS, 2008, 8 (11) :3942-3947

[4] Effect of Trace Solvent on the Morphology of P3HT:PCBM Bulk Heterojunction Solar Cells [J].

Chang, Lilian ;

Lademann, Hans W. A. ;

Bonekamp, Joerg-Bernd ;

Meerholz, Klaus ;

Moule, Adam J. .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (10) :1779-1787

[5] High fabrication yield organic tandem photovoltaics combining vacuum- and solution-processed subcells with 15% efficiency [J].

Che, Xiaozhou ;

Li, Yongxi ;

Qu, Yue ;

Forrest, Stephen R. .

NATURE ENERGY, 2018, 3 (05) :422-427

[6] Polymer solar cells with enhanced open-circuit voltage and efficiency [J].

Chen, Hsiang-Yu ;

Hou, Jianhui ;

Zhang, Shaoqing ;

Liang, Yongye ;

Yang, Guanwen ;

Yang, Yang ;

Yu, Luping ;

Wu, Yue ;

Li, Gang .

NATURE PHOTONICS, 2009, 3 (11) :649-653

[7] Development of Novel Conjugated Donor Polymers for High-Efficiency Bulk-Heterojunction Photovoltaic Devices [J].

Chen, Junwu ;

Cao, Yong .

ACCOUNTS OF CHEMICAL RESEARCH, 2009, 42 (11) :1709-1718

[8] Synthesis of Conjugated Polymers for Organic Solar Cell Applications [J].

Cheng, Yen-Ju ;

Yang, Sheng-Hsiung ;

Hsu, Chain-Shu .

CHEMICAL REVIEWS, 2009, 109 (11) :5868-5923

[9] Absolute Measurement of Domain Composition and Nanoscale Size Distribution Explains Performance in PTB7:PC71BM Solar Cells [J].

Collins, Brian A. ;

Li, Zhe ;

Tumbleston, John R. ;

Gann, Eliot ;

McNeill, Christopher R. ;

Ade, Harald .

ADVANCED ENERGY MATERIALS, 2013, 3 (01) :65-74

[10] Improved Performance of Molecular Bulk-Heterojunction Photovoltaic Cells through Predictable Selection of Solvent Additives [J].

Graham, Kenneth R. ;

Wieruszewski, Patrick M. ;

Stalder, Romain ;

Hartel, Michael J. ;

Mei, Jianguo ;

So, Franky ;

Reynolds, John R. .

ADVANCED FUNCTIONAL MATERIALS, 2012, 22 (22) :4801-4813

← 1 2 3 4 5 →