Asymmetrical Squaraines Bearing Fluorine-Substituted Indoline Moieties for High-Performance Solution-Processed Small-Molecule Organic Solar Cells

A low-bandgap asymmetrical squaraine ASQ-5 bearing an indoline substituent for solution-processed organic solar cells with high Jsc and PCE was synthesized.

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A solution-processed, ultraviolet-irradiation-derived WO3 film as anode interface layer for high-performance non-fullerene organic solar cells

Solar Energy ◽

10.1016/j.solener.2021.01.037 ◽

2021 ◽

Vol 216 ◽

pp. 211-216

Author(s):

Tao Zhan ◽

Peng Ren ◽

Xiaofang Huang ◽

Xiuyun Zhang ◽

Guiting Chen ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Ultraviolet Irradiation ◽

High Performance ◽

Interface Layer ◽

Solution Processed

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Fullerene/Non-fullerene Alloy for High-Performance All-Small-Molecule Organic Solar Cells

ACS Applied Materials & Interfaces ◽

10.1021/acsami.0c21844 ◽

2021 ◽

Vol 13 (5) ◽

pp. 6461-6469

Author(s):

María Privado ◽

Fernando G. Guijarro ◽

Pilar de la Cruz ◽

Rahul Singhal ◽

Fernando Langa ◽

...

Keyword(s):

Solar Cells ◽

Small Molecule ◽

Organic Solar Cells ◽

High Performance

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Modulating Crystallinity and Miscibility via Side‐chain Variation Enable High Performance All‐Small‐Molecule Organic Solar Cells

Chinese Journal of Chemistry ◽

10.1002/cjoc.202100216 ◽

2021 ◽

Author(s):

Yang Wang ◽

Qunping Fan ◽

Yulong Wang ◽

Jin Fang ◽

Qi Liu ◽

...

Keyword(s):

Solar Cells ◽

Small Molecule ◽

Organic Solar Cells ◽

High Performance ◽

Side Chain

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

Nano-Micro Letters ◽

10.1007/s40820-020-00566-3 ◽

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.

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