The Impact of Space Charge Polarization on Light-soaking Phenomena in Non-Fullerene Organic Solar Cells

2021 ◽  
Author(s):  
Yichuan Si ◽  
Yuan Xie ◽  
Sha Liu ◽  
Quanbin Liang ◽  
Hongbin Wu
Keyword(s):  
Solar Cells ◽  
Space Charge ◽  
Organic Solar Cells ◽  
Space Charge Polarization ◽  
Device Optimization ◽  
Charge Polarization ◽  
The Impact ◽  
Microscopic Origin

Revealing the microscopic origin of the unstable nature in organic solar cells (OSCs) is a key issue for further device optimization. Here, we identify that the light-soaking process seen in...

scholarly journals Effect of Radial Moisture Distribution on Frequency Domain Dielectric Response of Oil-Polymer Insulation Bushing

Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1219 ◽  
Author(s):  
Daning Zhang ◽  
Guanwei Long ◽  
Yang Li ◽  
Haibao Mu ◽  
Guanjun Zhang
Keyword(s):  
Moisture Content ◽  
Space Charge ◽  
Frequency Domain ◽  
Water Distribution ◽  
Space Charge Polarization ◽  
Moisture Distribution ◽  
Mechanism Analysis ◽  
Loss Peak ◽  
Charge Polarization ◽  
Peak Value

In order to realize the diagnosis of water distribution, this paper analyzes the interface polarization and macroscopic space charge polarization mechanism when the water distribution is non-uniform. The experimental results of this paper and bushing show that when the moisture distribution is non-uniform, there is a significant loss peak in the tanδ-f curve. The loss peak shifts to higher frequencies as the non-uniformity coefficient increases. There are common intersection points between multiple tanδ-f curves. Further, this paper realizes the diagnosis of the location of moisture distribution through Frequency Domain Spectroscopy (FDS) testing of different voltages and different wiring methods based on the macroscopic space charge polarization. In the single-cycle FDS test, when the positive electrode is first added to the area with higher moisture content, the amplitude of the tanδ-f curve is smaller. The tanδ-f curves under different wiring methods constitute a “ring-shaped” loss peak. As the voltage increases, the peak value of the loss peak shifts to the lower frequency band. As the temperature increases, the peak value of the loss peak shifts to higher frequencies. Based on the above rules and mechanism analysis, this research provides a new solution for the evaluation of moisture content of oil-immersed polymers equipment.

Space charge polarization induced memory in SmNiO3/Si transistors

2013 ◽  
Vol 102 (7) ◽  
pp. 072102 ◽  
Author(s):  
Sang Hyeon Lee ◽  
Moonkyung Kim ◽  
Sieu D. Ha ◽  
Jo-Won Lee ◽  
Shriram Ramanathan ◽  
...  
Keyword(s):  
Space Charge ◽  
Space Charge Polarization ◽  
Charge Polarization

Achieving Efficient Organic Solar Cells via Synergistically Doping Active Layer and Interface by A Conjugated Macrocycle

2021 ◽  
Author(s):  
Yan Wang ◽  
Yi Zhang ◽  
Tong Shan ◽  
Qingyun Wei ◽  
Zhenchuang Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Device Optimization ◽  
Hole Transporting

To facilitate the device optimization of organic solar cells, a conjugated macrocycle namely cyanostar is firstly utilized to simultaneously modify the active layer and hole transporting layer. Benefiting from the...

The Impact of Surface Processes on the J–V Characteristics of Organic Solar Cells

2020 ◽  
Vol 10 (2) ◽  
pp. 514-521
Author(s):  
Ali R. Khalf ◽  
Jovana P. Gojanovic ◽  
Natasa A. Cirovic ◽  
Sandra Zivanovic ◽  
Petar S. Matavulj
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Surface Processes ◽  
The Impact

scholarly journals The impact of thermal treatment on the performance of benzo[1,2-b:4,5-b′]difuran-based organic solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (65) ◽  
pp. 39916-39921
Author(s):  
Bo Liu ◽  
Xiaobo Wang ◽  
Lang Li ◽  
Gang Wang
Keyword(s):  
Solar Cells ◽  
Thermal Treatment ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Stille Coupling ◽  
Low Bandgap ◽  
The Impact ◽  
Coupling Polymerization

The new low bandgap benzo[1,2-b:4,5-b′]difuran (BDF)-based organic small molecule, namely B1, was synthesized by Stille coupling polymerization reactions.

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