A Non-fullerene Electron Acceptor with Benzotrithiophene and π-Extension Terminal Group for Development of High-Efficiency Organic Solar Cells

2021 ◽  
Author(s):  
Shanshan Ma ◽  
Qiri Huang ◽  
Yuanying Liang ◽  
Haoran Tang ◽  
Yanwei Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Building Blocks ◽  
Terminal Group ◽  
Electron Acceptors ◽  
Active Materials

Developing novel building blocks is essentially important to construct high-performance non-fullerene electron acceptors (NFEAs). Benzotrithiophene (BTT) as an electron-donating block has been widely applied in active materials to obtain high-performance...

9-Fluorenone and 9,10-anthraquinone potential fused aromatic building blocks to synthesize electron acceptors for organic solar cells

2017 ◽  
Vol 41 (8) ◽  
pp. 2899-2909 ◽  
Author(s):  
Thu Trang Do ◽  
Kira Rundel ◽  
Qinying Gu ◽  
Eliot Gann ◽  
Sergei Manzhos ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Building Blocks ◽  
Electron Acceptors

Two novel small molecules based on fluorenone or 9,10-anthraquinone and diketopyrrolopyrrole (DPP) were synthesized and utilised as electron acceptor materials in fullerene-free organic solar cells.

Terminal π–π stacking determines three-dimensional molecular packing and isotropic charge transport in an A–π–A electron acceptor for non-fullerene organic solar cells

2017 ◽  
Vol 5 (20) ◽  
pp. 4852-4857 ◽  
Author(s):  
Guangchao Han ◽  
Yuan Guo ◽  
Xiaoxian Song ◽  
Yue Wang ◽  
Yuanping Yi
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
High Performance ◽  
Three Dimensional ◽  
Molecular Packing ◽  
Electron Acceptors ◽  
Π Stacking

Three-dimensional molecular packing and isotropic charge transport can be achieved through local π–π stacking between terminal acceptor units for A–π–A electron acceptors toward high-performance non-fullerene organic solar cells.

Asymmetric selenophene-based non-fullerene acceptors for high-performance organic solar cells

2019 ◽  
Vol 7 (4) ◽  
pp. 1435-1441 ◽  
Author(s):  
Chao Li ◽  
Tian Xia ◽  
Jiali Song ◽  
Huiting Fu ◽  
Hwa Sook Ryu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Fill Factor ◽  
High Efficiency ◽  
Building Blocks

Two novel selenophene-containing building blocks have been developed as central cores to construct high-performance asymmetric non-fullerene acceptors (SePTT-2F and SePTTT-2F). Organic solar cells based on SePTTT-2F with more extended backbone conjugation delivered a high efficiency of 12.24% with an outstanding fill factor of 75.9%.

scholarly journals Solution-Processed Transparent Conducting Electrodes for Flexible Organic Solar Cells with 16.61% Efficiency

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Juanyong Wan ◽  
Yonggao Xia ◽  
Junfeng Fang ◽  
Zhiguo Zhang ◽  
Bingang Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Work Function ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Electrical Stability ◽  
Solution Processed ◽  
Good Thermal Stability ◽  
Transparent Conducting ◽  
High Flexibility

AbstractNonfullerene organic solar cells (OSCs) have achieved breakthrough with pushing the efficiency exceeding 17%. While this shed light on OSC commercialization, high-performance flexible OSCs should be pursued through solution manufacturing. Herein, we report a solution-processed flexible OSC based on a transparent conducting PEDOT:PSS anode doped with trifluoromethanesulfonic acid (CF3SO3H). Through a low-concentration and low-temperature CF3SO3H doping, the conducting polymer anodes exhibited a main sheet resistance of 35 Ω sq−1 (minimum value: 32 Ω sq−1), a raised work function (≈ 5.0 eV), a superior wettability, and a high electrical stability. The high work function minimized the energy level mismatch among the anodes, hole-transporting layers and electron-donors of the active layers, thereby leading to an enhanced carrier extraction. The solution-processed flexible OSCs yielded a record-high efficiency of 16.41% (maximum value: 16.61%). Besides, the flexible OSCs afforded the 1000 cyclic bending tests at the radius of 1.5 mm and the long-time thermal treatments at 85 °C, demonstrating a high flexibility and a good thermal stability.

Theoretical design of three-dimensional non-fullerene acceptor materials based on an arylenediimide unit towards high efficiency organic solar cells

2017 ◽  
Vol 41 (10) ◽  
pp. 3857-3864 ◽  
Author(s):  
Qing-Qing Pan ◽  
Shuang-Bao Li ◽  
Yong Wu ◽  
Ji Zhang ◽  
Hai-Bin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Three Dimensional ◽  
Tddft Calculations ◽  
Theoretical Design ◽  
Organic Acceptor ◽  
Dft And Tddft Calculations

DFT and TDDFT calculations were performed to search for high-performance non-fullerene organic acceptor materials in organic solar cells.

Tuning terminal aromatics of electron acceptors to achieve high-efficiency organic solar cells

2019 ◽  
Vol 7 (48) ◽  
pp. 27632-27639 ◽  
Author(s):  
Ran Qin ◽  
Di Wang ◽  
Guanqing Zhou ◽  
Zhi-Peng Yu ◽  
Shuixing Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Electron Acceptors ◽  
Hole Transfer

The structural tuning of non-fullerene acceptors with extended terminal aromatics enables faster hole transfer from the acceptor to the donor at smaller energy offsets, thereby achieving high efficiency in organic solar cells.

High‐Efficiency As‐Cast Organic Solar Cells Based on Acceptors with Steric Hindrance Induced Planar Terminal Group

2019 ◽  
Vol 9 (32) ◽  
pp. 1901280 ◽  
Author(s):  
Yahui Liu ◽  
Miao Li ◽  
Jinjin Yang ◽  
Wenyue Xue ◽  
Shiyu Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Steric Hindrance ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Terminal Group

scholarly journals Random terpolymer based on thiophene-thiazolothiazole unit enabling efficient non-fullerene organic solar cells

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Jingnan Wu ◽  
Guangwei Li ◽  
Jin Fang ◽  
Xia Guo ◽  
Lei Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
High Efficiency ◽  
Temperature Dependent ◽  
Polymer Backbone ◽  
Positive Effects ◽  
Highly Sensitive ◽  
Aggregation Property ◽  
Reduced Temperature

Abstract Developing a high-performance donor polymer is critical for achieving efficient non-fullerene organic solar cells (OSCs). Currently, most high-efficiency OSCs are based on a donor polymer named PM6, unfortunately, whose performance is highly sensitive to its molecular weight and thus has significant batch-to-batch variations. Here we report a donor polymer (named PM1) based on a random ternary polymerization strategy that enables highly efficient non-fullerene OSCs with efficiencies reaching 17.6%. Importantly, the PM1 polymer exhibits excellent batch-to-batch reproducibility. By including 20% of a weak electron-withdrawing thiophene-thiazolothiazole (TTz) into the PM6 polymer backbone, the resulting polymer (PM1) can maintain the positive effects (such as downshifted energy level and reduced miscibility) while minimize the negative ones (including reduced temperature-dependent aggregation property). With higher performance and greater synthesis reproducibility, the PM1 polymer has the promise to become the work-horse material for the non-fullerene OSC community.

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