Elasto-morphology of P3HT:PCBM bulk heterojunction organic solar cells

Soft Matter ◽  
2020 ◽  
Vol 16 (29) ◽  
pp. 6743-6751
Author(s):  
Joydeep Munshi ◽  
TeYu Chien ◽  
Wei Chen ◽  
Ganesh Balasubramanian
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Mechanical Stability ◽  
Bulk Heterojunction ◽  
Solution Processing ◽  
Processing Conditions ◽  
Trade Off ◽  
And Performance

The effect of solution processing conditions on the elasto-morphology of a bulk heterojunction layer reveals a trade-off between thermo-mechanical stability and performance in organic solar cells.

Effect of fused triphenylamine core in star-shaped donor-π-acceptor molecules on their physicochemical properties and performance in bulk heterojunction organic solar cells

2020 ◽  
Vol 177 ◽  
pp. 108260 ◽  
Author(s):  
Yuriy N. Luponosov ◽  
Alexander N. Solodukhin ◽  
Artur L. Mannanov ◽  
Petr S. Savchenko ◽  
Yury Minenkov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Physicochemical Properties ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
And Performance ◽  
Acceptor Molecules

scholarly journals Branched Electron-Donor Core Effect in D-π-A Star-Shaped Small Molecules on Their Properties and Performance in Single-Component and Bulk-Heterojunction Organic Solar Cells

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3596
Author(s):  
Alexander N. Solodukhin ◽  
Yuriy N. Luponosov ◽  
Artur L. Mannanov ◽  
Petr S. Savchenko ◽  
Artem V. Bakirov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Photovoltaic Performance ◽  
Charge Carrier Mobility ◽  
Single Component ◽  
Orbital Energy ◽  
Donor Acceptor ◽  
And Performance ◽  
Acceptor Molecules

Star-shaped donor-acceptor molecules are full of promise for organic photovoltaics and electronics. However, the effect of the branching core on physicochemical properties, charge transport and photovoltaic performance of such donor-acceptor materials in single-component (SC) and bulk heterojunction (BHJ) organic solar cells has not been thoroughly addressed. This work shows the comprehensive investigation of six star-shaped donor-acceptor molecules with terminal hexyldicyanovinyl blocks linked through 2,2′-bithiophene π-conjugated bridge to different electron-donating cores such as the pristine and fused triphenylamine, tris(2-methoxyphenyl)amine, carbazole- and benzotriindole-based units. Variation of the branching core strongly impacts on such important properties as the solubility, highest occupied molecular orbital energy, optical absorption, phase behavior, molecular packing and also on the charge-carrier mobility. The performance of SC or BHJ organic solar cells are comprehensively studied and compared. The results obtained provide insight on how to predict and fine-tune photovoltaic performance as well as properties of donor-acceptor star-shaped molecules for organic solar cells.

The Study of Crystallization of Polyfluorene and Fullerene Derivatives in Semiconducting Layer of Organic Solar Cells

2017 ◽  
Vol 751 ◽  
pp. 435-441
Author(s):  
Wantana Koetniyom ◽  
Anusit Keawprajak ◽  
Kanpitcha Jiramitmongkon ◽  
Udom Asawapirom
Keyword(s):  
Crystal Structure ◽  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
A Cell ◽  
And Performance ◽  
Xrd And Tem

This research was focused on the effect of solid crystallization additive namely 1,4-dichlorobenzene (PDCB) in the 1:2 (w/w) active layer of benzothiadiazole/thiophene-based copolymers (PFTBzTT) to [6,6]-phenyl-C61 butyric acid methyl ester (PCBM) on the morphology and performance of bulk heterojunction (BHJ) organic solar cells. The active layer was deposited by spin-coating with chloroform solutions by different PDCB additive concentrations from 0-52 mg/ml. The inclusion of additive into the polymer solution was able to improve the performance of BHJ solar cells. The maximum power conversion efficiency (PCE) of 0.84% achieved for a cell with PDCB concentration of 36 mg/ml after annealing at 180 °C for 20 min. The XRD and TEM techniques used to analyse the crystal structure and morphology of the thin films. From these results were found that PDCB additive presented higher level of PCBM crystal structure by more aggregation of PCBM and a larger extent of phase separation than those of the films without additive. The AFM results demonstrated that the optimum PDCB concentration and annealing process helped PCBM aggregated into micron sized crystal rods.

Versatile ternary organic solar cells: a critical review

2016 ◽  
Vol 9 (2) ◽  
pp. 281-322 ◽  
Author(s):  
Qiaoshi An ◽  
Fujun Zhang ◽  
Jian Zhang ◽  
Weihua Tang ◽  
Zhenbo Deng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Light Absorption ◽  
Critical Review ◽  
Organic Materials ◽  
Bulk Heterojunction ◽  
Processing Conditions ◽  
Tandem Solar Cells ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

Ternary organic solar cells enjoy both the enhanced light absorption by incorporating multiple organic materials in tandem solar cells and the simplicity of processing conditions that are used in single bulk heterojunction solar cells.

Semitransparent Organic Solar Cells: From Molecular Design to Structure-Performance Relationships

2021 ◽  
Author(s):  
Ganesh D Sharma ◽  
Kanupriya Khandelwal ◽  
Amaresh Mishra ◽  
Subhayan Biswas
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Bulk Heterojunction ◽  
Low Cost ◽  
Solution Processing ◽  
Color Tunability

Organic solar cells (OSC) have drawn tremendous interest because of their potential for low-cost solution processing and color tunability. OSCs with bulk-heterojunction structures offer an attractive pathway to efficiently utilize...

Effect of thermal annealing on active layer morphology and performance for small molecule bulk heterojunction organic solar cells

2014 ◽  
Vol 2 (35) ◽  
pp. 7247-7255 ◽  
Author(s):  
Zuo Yi ◽  
Wang Ni ◽  
Qian Zhang ◽  
Miaomiao Li ◽  
Bin Kan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Thermal Annealing ◽  
Active Layer ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells ◽  
And Performance ◽  
The Impact

Bulk heterojunction solar cells based on a novel small molecule (DRDTSBDTT) were systematically investigated to understand the impact of thermal annealing on Voc, Jsc and FF.

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