Universal and Versatile Morphology Engineering Via Hot Fluorous Solvent Soaking for Organic Bulk Heterojunction

Overview

Journal Nat Commun

Specialty Biology

Date 2020 Nov 5

PMID 33149143

Citations 3

Authors

Tong Shan

Yi Zhang

Yan Wang

Ziyi Xie

Qingyun Wei

Jinqiu Xu

Ming Zhang

Cheng Wang

Qinye Bao

Xin Wang

Chun-Chao Chen

Jingsong Huang

Qi Chen

Feng Liu

Liwei Chen

Hongliang Zhong

Affiliations

Soon will be listed here.

Abstract

After explosive growth of efficiency in organic solar cells (OSCs), achieving ideal morphology of bulk heterojunction remains crucial and challenging for advancing OSCs into consumer market. Herein, by utilizing the amphiphobic nature and temperature-dependent miscibility of fluorous solvent, hot fluorous solvent soaking method is developed to optimize the morphology with various donor/acceptor combinations including polymer/small-molecule, all-polymer and all-small-molecule systems. By immersing blend film into hot fluorous solvent which is utilized as liquid medium with better thermal conductivity, the molecular reorganization is accelerated. Furthermore, fluorous solvent can be miscible with the residue of chloroform and chloronaphthalene above upper critical solution temperature. This mixed solvent diffuses around inside the active layer and selectively promotes molecular reorganization, leading to optimized morphology. Compared to widely-used thermal annealing, this approach processed under mild conditions achieves superior photovoltaic performance, indicating the practicality and universality for morphological optimization in OSCs as well as other optoelectronic devices.

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References

Lee H, Park C, Sin D, Park J, Cho K . Recent Advances in Morphology Optimization for Organic Photovoltaics. Adv Mater. 2018; :e1800453. DOI: 10.1002/adma.201800453. View

Cui Y, Yao H, Zhang J, Zhang T, Wang Y, Hong L . Over 16% efficiency organic photovoltaic cells enabled by a chlorinated acceptor with increased open-circuit voltages. Nat Commun. 2019; 10(1):2515. PMC: 6555805. DOI: 10.1038/s41467-019-10351-5. View

Zhang L, Gopalakrishnan S, Li K, Wang L, Han Y, Rotello V . Fabrication of Collagen Films with Enhanced Mechanical and Enzymatic Stability through Thermal Treatment in Fluorous Media. ACS Appl Mater Interfaces. 2020; 12(5):6590-6597. DOI: 10.1021/acsami.9b18256. View

Yu R, Yao H, Hong L, Qin Y, Zhu J, Cui Y . Design and application of volatilizable solid additives in non-fullerene organic solar cells. Nat Commun. 2018; 9(1):4645. PMC: 6220167. DOI: 10.1038/s41467-018-07017-z. View

Kurpiers J, Ferron T, Roland S, Jakoby M, Thiede T, Jaiser F . Probing the pathways of free charge generation in organic bulk heterojunction solar cells. Nat Commun. 2018; 9(1):2038. PMC: 5966440. DOI: 10.1038/s41467-018-04386-3. View

Ye L, Hu H, Ghasemi M, Wang T, Collins B, Kim J . Quantitative relations between interaction parameter, miscibility and function in organic solar cells. Nat Mater. 2018; 17(3):253-260. DOI: 10.1038/s41563-017-0005-1. View

Xue L, Yang Y, Xu J, Zhang C, Bin H, Zhang Z . Side Chain Engineering on Medium Bandgap Copolymers to Suppress Triplet Formation for High-Efficiency Polymer Solar Cells. Adv Mater. 2017; 29(40). DOI: 10.1002/adma.201703344. View

Schwarz K, Geraghty P, Mitchell V, Khan S, Sandberg O, Zarrabi N . Reduced Recombination and Capacitor-like Charge Buildup in an Organic Heterojunction. J Am Chem Soc. 2020; 142(5):2562-2571. DOI: 10.1021/jacs.9b12526. View

Zhou W, Xie Y, Hu X, Zhang L, Meng X, Zhang Y . Surface treatment by binary solvents induces the crystallization of a small molecular donor for enhanced photovoltaic performance. Phys Chem Chem Phys. 2015; 18(2):735-42. DOI: 10.1039/c5cp05644f. View

10.

Guo S, Cao B, Wang W, Moulin J, Muller-Buschbaum P . Effect of alcohol treatment on the performance of PTB7:PC71BM bulk heterojunction solar cells. ACS Appl Mater Interfaces. 2015; 7(8):4641-9. DOI: 10.1021/am5079418. View

11.

Wang G, Adil M, Zhang J, Wei Z . Large-Area Organic Solar Cells: Material Requirements, Modular Designs, and Printing Methods. Adv Mater. 2018; 31(45):e1805089. DOI: 10.1002/adma.201805089. View

12.

Yao Z, Liao X, Gao K, Lin F, Xu X, Shi X . Dithienopicenocarbazole-Based Acceptors for Efficient Organic Solar Cells with Optoelectronic Response Over 1000 nm and an Extremely Low Energy Loss. J Am Chem Soc. 2018; 140(6):2054-2057. DOI: 10.1021/jacs.7b13239. View

13.

Zhong H, Li C, Carpenter J, Ade H, Jen A . Influence of Regio- and Chemoselectivity on the Properties of Fluoro-Substituted Thienothiophene and Benzodithiophene Copolymers. J Am Chem Soc. 2015; 137(24):7616-9. DOI: 10.1021/jacs.5b04209. View

14.

Meng X, Zhang L, Xie Y, Hu X, Xing Z, Huang Z . A General Approach for Lab-to-Manufacturing Translation on Flexible Organic Solar Cells. Adv Mater. 2019; 31(41):e1903649. DOI: 10.1002/adma.201903649. View

15.

Qiu B, Chen Z, Qin S, Yao J, Huang W, Meng L . Highly Efficient All-Small-Molecule Organic Solar Cells with Appropriate Active Layer Morphology by Side Chain Engineering of Donor Molecules and Thermal Annealing. Adv Mater. 2020; 32(21):e1908373. DOI: 10.1002/adma.201908373. View

16.

Chen X, Lai J, Shen Y, Chen Q, Chen L . Functional Scanning Force Microscopy for Energy Nanodevices. Adv Mater. 2018; 30(48):e1802490. DOI: 10.1002/adma.201802490. View

17.

Gu K, Zhou Y, Morrison W, Park K, Park S, Bao Z . Nanoscale Domain Imaging of All-Polymer Organic Solar Cells by Photo-Induced Force Microscopy. ACS Nano. 2018; 12(2):1473-1481. DOI: 10.1021/acsnano.7b07865. View

18.

Karki A, Vollbrecht J, Dixon A, Schopp N, Schrock M, Reddy G . Understanding the High Performance of over 15% Efficiency in Single-Junction Bulk Heterojunction Organic Solar Cells. Adv Mater. 2019; 31(48):e1903868. DOI: 10.1002/adma.201903868. View

19.

Dong Y, Zou Y, Yuan J, Yang H, Wu Y, Cui C . Ternary Polymer Solar Cells Facilitating Improved Efficiency and Stability. Adv Mater. 2019; 31(52):e1904601. DOI: 10.1002/adma.201904601. View

20.

An Q, Ma X, Gao J, Zhang F . Solvent additive-free ternary polymer solar cells with 16.27% efficiency. Sci Bull (Beijing). 2023; 64(8):504-506. DOI: 10.1016/j.scib.2019.03.024. View