scholarly journals Synergetic Effect of Different Carrier Dynamics in Pm6:Y6:ITIC-M Ternary Cascade Energy Level System

Polymers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2398
Author(s):  
Zicha Li ◽  
Dandan Song ◽  
Zheng Xu ◽  
Bo Qiao ◽  
Suling Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Polymer Solar Cells ◽  
Energy Levels ◽  
Synergetic Effect ◽  
Carrier Dynamics ◽  
Luminescence Spectroscopy ◽  
Active Layers ◽  
Cascade Energy ◽  
Ternary Polymer

Although reported ternary polymer solar cells have higher power conversion efficiency than binary polymers, the mechanism of exciton separation and charge transport in this complex ternary system is still unclear. Herein, based on PM6:Y6:ITIC-M ternary solar cells, we combine the technique of luminescence spectroscopy, including electroluminescence (EL) and photoluminescence (PL) with photovoltaic measurements, to understand clearly the detailed roles of ITIC-M as the third component in the contribution of device performance. The results show that ITIC-M can form the alloy-like composite with Y6 but leave individual Y6 acceptor to conduct charge transfer with PM6 donor, which improves Voc but decreases Jsc because of poor charge transfer capacity of ITIC-M. Meanwhile, the energy transfer from PM6 to ITIC-M exists in the active layers; small IE suppresses exciton dissociation. Deteriorating performance of solar cells demonstrates that, except for complementary absorption spectrum and suitable energy levels in PM6:Y6:ITIC-M system, the synergetic effects of carrier dynamics among different organic materials play an important role in influencing the performance of ternary solar cells.

High-efficiency ternary polymer solar cells with optimized morphology of active layers enabled by few-layered β-InSe nanosheets

Nanoscale ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 6871-6883
Author(s):  
Jianming Wang ◽  
Huangzhong Yu ◽  
Chunli Hou
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Polymer Solar Cells ◽  
Active Layers ◽  
Ternary Polymer ◽  
First Time

Herein, few-layered β-InSe nanosheets are introduced into the active layers of polymer solar cells as morphological modifiers for the first time. 

Impacts of a second acceptor on the energy loss, blend morphology and carrier dynamics in non-fullerene ternary polymer solar cells

2020 ◽  
Vol 8 (34) ◽  
pp. 11727-11734
Author(s):  
Bei Wang ◽  
Yingying Fu ◽  
Qingqing Yang ◽  
Jiang Wu ◽  
Youzhan Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Polymer Solar Cells ◽  
Charge Recombination ◽  
Carrier Dynamics ◽  
Recombination Process ◽  
Hole Transfer ◽  
Blend Morphology ◽  
Ternary Polymer

The different morphologies of PBDB-T:IT-4F:O6T-4F blends affect strongly the hole transfer from the acceptor(s) to the donor and the charge recombination process.

Highly efficient polymer solar cells via multiple cascade energy level engineering

2018 ◽  
Vol 6 (34) ◽  
pp. 9119-9129 ◽  
Author(s):  
Zuojia Li ◽  
Dongsheng Tang ◽  
Zhenkai Ji ◽  
Wei Zhang ◽  
Xiaopeng Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Energy Level ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Highly Efficient ◽  
Cascade Energy ◽  
Engineering Strategy ◽  
Blend Polymer ◽  
Transfer Channels

High-performance multiple blend polymer solar cells (PSCs) were firstly achieved via a multiple cascade energy level engineering strategy. By introducing more different bandgap copolymers with the similar molecular backbones, steadier energy level alignment and more charge transfer channels in devices could be realized.

scholarly journals Optimization of Sb2S3 Nanocrystal Concentrations in P3HT: PCBM Layers to Improve the Performance of Polymer Solar Cells

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2152
Author(s):  
E. M. Mkawi ◽  
Y. Al-Hadeethi ◽  
R. S. Bazuhair ◽  
A. S. Yousef ◽  
E. Shalaan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Doping Concentration ◽  
Polymer Solar Cells ◽  
Energy Levels ◽  
Acid Methyl Ester ◽  
Visible Absorption ◽  
Block Polymer ◽  
Coating Method ◽  
Electronic Parameters ◽  
P Type

In this study, polymer solar cells were synthesized by adding Sb2S3 nanocrystals (NCs) to thin blended films with polymer poly(3-hexylthiophene)(P3HT) and [6,6]-phenyl-C61-butyric-acid-methyl-ester (PCBM) as the p-type material prepared via the spin-coating method. The purpose of this study is to investigate the dependence of polymer solar cells’ performance on the concentration of Sb2S3 nanocrystals. The effect of the Sb2S3 nanocrystal concentrations (0.01, 0.02, 0.03, and 0.04 mg/mL) in the polymer’s active layer was determined using different characterization techniques. X-ray diffraction (XRD) displayed doped ratio dependences of P3HT crystallite orientations of P3HT crystallites inside a block polymer film. Introducing Sb2S3 NCs increased the light harvesting and regulated the energy levels, improving the electronic parameters. Considerable photoluminescence quenching was observed due to additional excited electron pathways through the Sb2S3 NCs. A UV–visible absorption spectra measurement showed the relationship between the optoelectronic properties and improved surface morphology, and this enhancement was detected by a red shift in the absorption spectrum. The absorber layer’s doping concentration played a definitive role in improving the device’s performance. Using a 0.04 mg/mL doping concentration, a solar cell device with a glass /ITO/PEDOT:PSS/P3HT-PCBM: Sb2S3:NC/MoO3/Ag structure achieved a maximum power conversion efficiency of 2.72%. These Sb2S3 NCs obtained by solvothermal fabrication blended with a P3HT: PCBM polymer, would pave the way for a more effective design of organic photovoltaic devices.

scholarly journals Application of quinoline derivatives in third-generation photovoltaics

2021 ◽  
Author(s):  
Gabriela Lewinska ◽  
Jerzy Sanetra ◽  
Konstanty W. Marszalek
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Energy Levels ◽  
Photovoltaic Cells ◽  
Third Generation ◽  
Quinoline Derivatives ◽  
Emission Layer ◽  
Light Emitting ◽  
Photovoltaic Applications ◽  
Architecture And Design

AbstractAmong many chemical compounds synthesized for third-generation photovoltaic applications, quinoline derivatives have recently gained popularity. This work reviews the latest developments in the quinoline derivatives (metal complexes) for applications in the photovoltaic cells. Their properties for photovoltaic applications are detailed: absorption spectra, energy levels, and other achievements presented by the authors. We have also outlined various methods for testing the compounds for application. Finally, we present the implementation of quinoline derivatives in photovoltaic cells. Their architecture and design are described, and also, the performance for polymer solar cells and dye-synthesized solar cells was highlighted. We have described their performance and characteristics. We have also pointed out other, non-photovoltaic applications for quinoline derivatives. It has been demonstrated and described that quinoline derivatives are good materials for the emission layer of organic light-emitting diodes (OLEDs) and are also used in transistors. The compounds are also being considered as materials for biomedical applications.

scholarly journals Improving ternary blend morphology by adding a conjugated molecule into non-fullerene polymer solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43508-43513
Author(s):  
Di Zhao ◽  
Pengcheng Jia ◽  
Ling Li ◽  
Yang Tang ◽  
Qiuhong Cui ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Polymer Solar Cells ◽  
Photovoltaic Performance ◽  
Ternary Blend ◽  
Promising Strategy ◽  
Blend Morphology ◽  
Ternary Polymer ◽  
Conjugated Molecule

The use of ternary polymer solar cells (PSCs) is a promising strategy to enhance photovoltaic performance while improving the fill factor (FF) of a device, but is still a challenge due to the complicated morphology.

Sign in / Sign up

Export Citation Format

Share Document