Optimized Fibril Network Morphology by Precise Side-Chain Engineering to Achieve High-Performance Bulk-Heterojunction Organic Solar Cells

Advanced Materials
Tao LiuYanming Sun

Abstract

A polymer fibril assembly can dictate the morphology framework, in forming a network structure, which is highly advantageous in bulk heterojunction (BHJ) organic solar cells (OSCs). A fundamental understanding of how to manipulate such a fibril assembly and its influence on the BHJ morphology and device performance is crucially important. Here, a series of donor-acceptor polymers, PBT1-O, PBT1-S, and PBT1-C, is used to systematically investigate the relationship between molecular structure, morphology, and photovoltaic performance. The subtle atom change in side chains is found to have profound effect on regulating electronic structure and self-assembly of conjugated polymers. Compared with PBT1-O and PBT1-S, PBT1-C-based OSCs show much higher photovoltaic performance with a record fill factor (FF) of 80.5%, due to the formation of optimal interpenetrating network morphology. Such a fibril network strategy is further extended to nonfullerene OSCs using a small-molecular acceptor, which shows a high efficiency of 12.7% and an FF of 78.5%. The results indicate the formation of well-defined fibrillar structure is a promising approach to achieving a favorable morphology in BHJ OSCs.

References

Apr 2, 2008·Journal of the American Chemical Society·Hao XinSamson A Jenekhe
Aug 19, 2010·Advanced Materials·Christoph J BrabecShawn P Williams
Mar 23, 2011·Chemical Reviews·Marta Mas-Torrent, Concepció Rovira
Dec 17, 2011·Advanced Materials·Suhao WangKlaus Müllen
Aug 1, 2013·Nature Communications·Xinran ZhangDean M DeLongchamp
Nov 28, 2013·Journal of the American Chemical Society·Weiwei LiRené A J Janssen
Aug 8, 2014·Journal of the American Chemical Society·Alex J BarkerJustin M Hodgkiss
Feb 5, 2015·ACS Applied Materials & Interfaces·Taehoon KimChong Rae Park
Aug 8, 2015·Chemical Reviews·Luyao LuLuping Yu
Aug 27, 2015·Journal of the American Chemical Society·Jacobus J van FranekerRené A J Janssen
Dec 24, 2015·Accounts of Chemical Research·Weiwei LiRené A J Janssen
Mar 5, 2016·The Journal of Chemical Physics·Ye ZouDaoben Zhu
Mar 26, 2016·Journal of the American Chemical Society·Yuze LinXiaowei Zhan
Oct 27, 2016·Nature Communications·Zhengke LiHe Yan
Mar 16, 2017·Advanced Materials·Fuwen ZhaoXiaowei Zhan
Apr 4, 2017·Advanced Materials·Yunhao CaiYanming Sun
May 18, 2017·Journal of the American Chemical Society·Wenchao ZhaoJianhui Hou

❮ Previous
Next ❯

Citations

Aug 10, 2018·Advanced Materials·Yuanpeng XieYanming Sun
Feb 1, 2019·Advanced Materials·Dongfeng DangErgang Wang
Aug 29, 2018·Angewandte Chemie·Huiting FuYanming Sun
Feb 26, 2019·Physical Chemistry Chemical Physics : PCCP·Jinhua GaoFujun Zhang
Dec 18, 2020·Frontiers in Chemistry·Dingding QiuZhixiang Wei
Feb 19, 2021·Advanced Materials·Lingling ZhanHongzheng Chen
Jun 29, 2021·ACS Applied Materials & Interfaces·Tingting DaiErjun Zhou
Sep 5, 2020·ACS Applied Materials & Interfaces·Yunhao CaiYanming Sun
Nov 19, 2019·The Journal of Physical Chemistry Letters·Ashish SharmaGirish Lakhwani
Jan 23, 2019·ACS Applied Materials & Interfaces·Han HanDahui Zhao
Jun 28, 2019·The Journal of Physical Chemistry Letters·Jose M Marin-BeloquiTracey M Clarke
Oct 3, 2019·Accounts of Chemical Research·Hafiz Bilal NaveedWei Ma

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.