High-efficiency organic solar cells with low voltage-loss of 0.46 V

2020 ◽  
Vol 31 (7) ◽  
pp. 1991-1996 ◽  
Author(s):  
Zhi-Peng Yu ◽  
Xue Li ◽  
Chengliang He ◽  
Di Wang ◽  
Ran Qin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Low Voltage ◽  
Voltage Loss

High-efficiency organic solar cells with low voltage loss induced by solvent additive strategy

Matter ◽  
2021 ◽  
Vol 4 (7) ◽  
pp. 2542-2552
Author(s):  
Jiali Song ◽  
Lei Zhu ◽  
Chao Li ◽  
Jinqu Xu ◽  
Hongbo Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Low Voltage ◽  
Voltage Loss ◽  
Solvent Additive

scholarly journals Increasing donor-acceptor spacing for reduced voltage loss in organic solar cells

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jing Wang ◽  
Xudong Jiang ◽  
Hongbo Wu ◽  
Guitao Feng ◽  
Hanyu Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Radiative Decay ◽  
High Efficiency ◽  
Bulk Heterojunction ◽  
Perovskite Solar Cells ◽  
Research Direction ◽  
Voltage Loss ◽  
Donor Acceptor ◽  
New Research

AbstractThe high voltage losses ($${V}_{{loss}}$$ V l o s s ), originating from inevitable electron-phonon coupling in organic materials, limit the power conversion efficiency of organic solar cells to lower values than that of inorganic or perovskite solar cells. In this work, we demonstrate that this $${V}_{{loss}}$$ V l o s s can in fact be suppressed by controlling the spacing between the donor (D) and the acceptor (A) materials (DA spacing). We show that in typical organic solar cells, the DA spacing is generally too small, being the origin of the too-fast non-radiative decay of charge carriers ($${k}_{{nr}}$$ k n r ), and it can be increased by engineering the non-conjugated groups, i.e., alkyl chain spacers in single component DA systems and side chains in high-efficiency bulk-heterojunction systems. Increasing DA spacing allows us to realize significantly reduced $${k}_{{nr}}$$ k n r and improved device voltage. This points out a new research direction for breaking the performance bottleneck of organic solar cells.

Optimizing binding energy and electron-hole pair binding distance for efficient organic solar cells with low voltage loss

Solar Energy ◽  
2021 ◽  
Vol 230 ◽  
pp. 628-634
Author(s):  
Tingyao Huang ◽  
Yiming Bai ◽  
Jun Wang ◽  
Fuzhi Wang ◽  
Meilin Dai ◽  
...  
Keyword(s):  
Solar Cells ◽  
Binding Energy ◽  
Organic Solar Cells ◽  
Low Voltage ◽  
Hole Pair ◽  
Electron Hole ◽  
Voltage Loss ◽  
Electron Hole Pair ◽  
Binding Distance

Near-IR Absorbing D–A–D Zn-Porphyrin-Based Small-Molecule Donors for Organic Solar Cells with Low-Voltage Loss

2019 ◽  
Vol 11 (7) ◽  
pp. 7216-7225 ◽  
Author(s):  
Virginia Cuesta ◽  
Rahul Singhal ◽  
Pilar de la Cruz ◽  
Ganesh D. Sharma ◽  
Fernando Langa
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Low Voltage ◽  
Near Ir ◽  
Voltage Loss

Carboxylate substitution position influencing polymer properties and enabling non-fullerene organic solar cells with high open circuit voltage and low voltage loss

2018 ◽  
Vol 6 (35) ◽  
pp. 16874-16881 ◽  
Author(s):  
Jing Liu ◽  
Lik-Kuen Ma ◽  
Fu Kit Sheong ◽  
Lin Zhang ◽  
Huawei Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Low Voltage ◽  
Open Circuit ◽  
Voltage Loss ◽  
Polymer Properties

A novel polymer P3TAE enables a high VOC of 1.20 V and a PCE of 8.10% for non-fullerene OSCs.

Introducing methoxy or fluorine on the conjugated side chain to reduce the voltage loss of organic solar cells

2021 ◽  
Author(s):  
You Chen ◽  
Chuanxiu Jiang ◽  
Jiacheng Wang ◽  
Ailing Tang ◽  
Bao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Side Chain ◽  
Vital Importance ◽  
Voltage Loss

Developing effective method to decrease the voltage loss (Vloss) and increase the short-circuit current density (JSC) simultaneously is of vital importance to realize high-efficiency organic photovoltaics (OPV). Herein, we adopted...

Thermally Evaporated Donor Molecules for Low-Voltage Loss Organic Solar Cells

2021 ◽  
Author(s):  
Pascal Kaienburg ◽  
Helen Bristow ◽  
Anna Jungbluth ◽  
Irfan Habib ◽  
David Beljonne ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Low Voltage ◽  
Voltage Loss
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