scholarly journals Electrical Simulation for Different Thickness Ratio of PCBM and PTAA in Bilayer Organic Solar Cells

2014 ◽  
Vol 540 ◽  
pp. 21-24
Author(s):  
Ying Lian Wang ◽  
Jun Yao Ye ◽  
Ren Fen Zeng

nanoAg island thin films with different thickness have been prepared by vacuum vapor deposition method on ITO substrates for organic solar cells. UV-Vis absorption spectrum and surface morphology have been studied by UV-Vis scanning spectrophotometer and SEM. The influence of different thickness nanoAg has also been discussed. The results show that, when the nanoAg thickness is 3.0 nm, the surface plasmon response is most obvious, the resonance absorption peak appears red-shift, the surface plasmon response could enhance optical absorption, photocurrent, fill factor and power conversion efficiency obviously. The research results provide theoretical guidance to optimize the design and increase the performance of solar cells.


2012 ◽  
Vol 111 (9) ◽  
pp. 094506 ◽  
Author(s):  
Wilfried Vervisch ◽  
Guillaume Rivière ◽  
Sylvain Vedraine ◽  
Stéphane Biondo ◽  
Philippe Torchio ◽  
...  

2013 ◽  
Vol 827 ◽  
pp. 250-254
Author(s):  
Jin Min Hu ◽  
Shuang Wei Xie ◽  
Jian Wen ◽  
Xiao Min Liang

Experiments found that the thickness of the cesium carbonate modified layer of the processing solution will affect the performance of the polymer solar cells. We dissolved cesium carbonate in an organic solvent 2-ethoxyethanol, and prepared cesium carbonate modified layer of different thickness at different rotational speed. When the rotationing speed was at 2000 r/min, the efficiency of the device was preferably 2.28%, which indicated that the thickness prepared at this speed was most advantageous to the enhancement of the performance of the device. In addition, by annealing cesium carbonate modified layer at 130°C and 150°C, we found that the performance degradation of the annealing device at higher temperature was due to the fact that too much of the energy destroyed the micro-structure of the formed active layer.


2011 ◽  
Vol 98 (25) ◽  
pp. 253306 ◽  
Author(s):  
Wilfried Vervisch ◽  
Stéphane Biondo ◽  
Guillaume Rivière ◽  
David Duché ◽  
Ludovic Escoubas ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Zhizhe Wang ◽  
Chunfu Zhang ◽  
Dazheng Chen ◽  
Shi Tang ◽  
Jincheng Zhang ◽  
...  

ITO-free semitransparent organic solar cells (OSCs) based on MoO3/Ag anodes with poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester films as the active layer are investigated in this work. To obtain the optimal transparent (MoO3)/Ag anode, ITO-free reference OSCs are firstly fabricated. The power conversion efficiency (PCE) of 2.71% is obtained for OSCs based on the optimal MoO3(2 nm)/Ag (9 nm) anode, comparable to that of ITO-based reference OSCs (PCE of 2.85%). Then based on MoO3(2 nm)/Ag (9 nm) anode, ITO-free semitransparent OSCs with different thickness combination of Ca and Ag as the cathodes are investigated. It is observed from our results that OSCs with Ca (15 nm)/Ag (15 nm) cathode have the optimal transparency. Meanwhile, the PCE of 1.79% and 0.67% is obtained for illumination from the anode and cathode side, respectively, comparable to that of similar ITO-based semitransparent OSCs (PCE of 1.59% and 0.75% for illumination from the anode and cathode side, resp.) (Sol. Energy Mater. Sol. Cells, 95, pp. 877–880, 2011). The transparency and PCE of ITO-free semitransparent OSCs can be further improved by introducing a light couple layer. The developed method is compatible with various substrates, which is instructive for further research of ITO-free semitransparent OSCs.


Author(s):  
Antoine Goujon ◽  
Lou Rocard ◽  
Thomas Cauchy ◽  
Piétrick Hudhomme

AzaBenzannulated PDI (AzaBPDI) dyes were synthesized in high yields via a new reaction sequence involving an imine condensation followed by visible light-induced photocyclization. The large scope and efficiency of this alternative to the Pictet-Spengler reaction is demonstrated, and allows the easy preparation of dimeric AzaBPDI as potential non-fullerene acceptors for organic solar cells.


2019 ◽  
Author(s):  
Matthew Morgan ◽  
Maryam Nazari ◽  
Thomas Pickl ◽  
J. Mikko Rautiainen ◽  
Heikki M. Tuononen ◽  
...  

The electrophilic borylation of 2,5-diarylpyrazines results in the formation of boron-nitrogen doped dihydroindeno[1,2-<i>b</i>]fluorene which can be synthesized via mildly air-sensitive techniques and the end products handled readily under atmosphereic conditions. Through transmetallation via diarylzinc reagents a series of derivatives were sythesized which show broad absorption profiles that highlight the versatility of this backbone to be used in organic solar cell devices. These compounds can be synthesized in large yields, in alow number of steps and functionalized at many stages along the way providing a large depth of possibilities. Exploratory device paramaters were studied and show PCE of 2%.


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