Fine-tuning of Side-chain Orientations on Nonfullerene Acceptors Enables Organic Solar Cells with 17.7% Efficiency

2021 ◽  
Author(s):  
Gaoda CHAI ◽  
Yuan Chang ◽  
Jianquan Zhang ◽  
Xiaopeng Xu ◽  
Liyang Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Fine Tuning ◽  
Side Chain

Side-chain engineering has been shown to be an important strategy to optimize Y-series nonfullerene acceptors (NFAs). Most previous reports were focusing on changing the branching positions and size of the...

scholarly journals Alkyl-Side-Chain Engineering of Nonfused Nonfullerene Acceptors with Simultaneously Improved Material Solubility and Device Performance for Organic Solar Cells

ACS Omega ◽  
2021 ◽  
Vol 6 (7) ◽  
pp. 4562-4573
Author(s):  
Taeho Lee ◽  
Chang Eun Song ◽  
Sang Kyu Lee ◽  
Won Suk Shin ◽  
Eunhee Lim
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Side Chain ◽  
Device Performance ◽  
Alkyl Side Chain

scholarly journals Recent Advances in Non-Fullerene Acceptors of the IDIC/ITIC Families for Bulk-Heterojunction Organic Solar Cells

2020 ◽  
Vol 21 (21) ◽  
pp. 8085
Author(s):  
Giacomo Forti ◽  
Andrea Nitti ◽  
Peshawa Osw ◽  
Gabriele Bianchi ◽  
Riccardo Po ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Fine Tuning ◽  
The Past ◽  
Recent Advances ◽  
Group Modification ◽  
End Capping

The introduction of the IDIC/ITIC families of non-fullerene acceptors has boosted the photovoltaic performances of bulk-heterojunction organic solar cells. The fine tuning of the photophysical, morphological and processability properties with the aim of reaching higher and higher photocurrent efficiencies has prompted uninterrupted worldwide research on these peculiar families of organic compounds. The main strategies for the modification of IDIC/ITIC compounds, described in several contributions published in the past few years, can be summarized and classified into core modification strategies and end-capping group modification strategies. In this review, we analyze the more recent advances in this field (last two years), and we focus our attention on the molecular design proposed to increase photovoltaic performance with the aim of rationalizing the general properties of these families of non-fullerene acceptors.

Donor polymer based on alkylthiophene side chains for efficient non-fullerene organic solar cells: insights into fluorination and side chain effects on polymer aggregation and blend morphology

2018 ◽  
Vol 6 (46) ◽  
pp. 23270-23277 ◽  
Author(s):  
Jing Liu ◽  
Lik-Kuen Ma ◽  
Zhengke Li ◽  
Huawei Hu ◽  
Fu Kit Sheong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Synergistic Effects ◽  
Side Chain ◽  
Side Chains ◽  
Blend Morphology

The synergistic effects of overfluorination and alkylthiophene side chain strategies led to 10.60% efficiency for non-fullerene organic solar cells.

Side-chain influences on the properties of benzodithiophene-alt-di(thiophen-2-yl)quinoxaline polymers for fullerene-free organic solar cells

Polymer ◽  
2019 ◽  
Vol 172 ◽  
pp. 305-311 ◽  
Author(s):  
Vellaiappillai Tamilavan ◽  
Jihoon Lee ◽  
Ji Hyeon Kwon ◽  
Soyeong Jang ◽  
Insoo Shin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Side Chain

Synergy strategy to the flexible alkyl and chloride side-chain engineered quinoxaline-based D–A conjugated polymers for efficient non-fullerene polymer solar cells

2021 ◽  
Author(s):  
Liang Zeng ◽  
Ruijie Ma ◽  
Qiang Zhang ◽  
Tao Liu ◽  
Yiqun Xiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Conjugated Polymers ◽  
Halogen Atom ◽  
Polymer Solar Cells ◽  
Fine Tuning ◽  
Side Chain ◽  
Side Chains

We are developing both copolymers with quinoxaline (Qx) as acceptor units by fine tuning the side chains with halogen atom chlorine (Cl) and flexible alkyl engineering for efficient non-fullerene polymer solar cells.

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