scholarly journals Investigation of Annealing and Blend Concentration Effects of Organic Solar Cells Composed of Small Organic Dye and Fullerene Derivative

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
Yasser A. M. Ismail ◽  
Tetsuo Soga ◽  
Takashi Jimbo
Keyword(s):  
Solar Cells ◽  
Thermal Annealing ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Organic Dye ◽  
Fullerene Derivative ◽  
Performance Parameters ◽  
Concentration Effects ◽  
Small Organic Molecules ◽  
And Performance

We have fabricated bulk heterojunction organic solar cells using coumarin 6 (C6) as a small organic dye, for light harvesting and electron donation, with fullerene derivative [6,6]-phenyl-C61 butyric acid methyl ester (PCBM), acting as an electron acceptor, by spin-coating technique. We have investigated thermal annealing and blend concentration effects on light harvesting, photocurrent, and performance parameters of the solar cells. In this work, we introduced an experimental method by which someone can easily detect the variation in the contact between active layer and cathode due to thermal annealing after cathode deposition. We have showed, in this work, unusual behavior of solar cell composed of small organic molecules under the influence of thermal annealing at different conditions. This behavior seemed uncommon for polymer solar cells. We try from this work to understand device physics and to locate a relationship between production parameters and performance parameters of the solar cell based on small organic molecules.

Thermal Annealing Effects on the Fine Structure and Performance of P3HT: PCBM Based Organic Solar Cells Fabricated in Air

2014 ◽  
Vol 599 (1) ◽  
pp. 23-29 ◽  
Author(s):  
M. M. Ibrahim ◽  
O. A. Ghazy ◽  
F. I. Abouelfadl ◽  
H. M. Hosni ◽  
E. M. Shehata ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fine Structure ◽  
Thermal Annealing ◽  
Organic Solar Cells ◽  
Annealing Effects ◽  
And Performance

New small organic molecules based on thieno[2,3-b]indole for efficient bulk heterojunction organic solar cells: a computational study

2019 ◽  
Vol 118 (8) ◽  
pp. e1662956
Author(s):  
Mohamed Hachi ◽  
Ahmed Slimi ◽  
Asmae Fitri ◽  
Souad ElKhattabi ◽  
Adil Touimi Benjelloun ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Bulk Heterojunction ◽  
Computational Study ◽  
Small Organic Molecules

Branched versus linear: side-chain effect on fluorinated wide bandgap donors and their applications in organic solar cells

2020 ◽  
Vol 44 (3) ◽  
pp. 753-760
Author(s):  
Tainan Duan ◽  
Ru-Ze Liang ◽  
Yingying Fu ◽  
Yuying Chang ◽  
Zhipeng Kan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Wide Band ◽  
Wide Bandgap ◽  
Side Chain ◽  
Wide Band Gap ◽  
Solution Processed ◽  
Small Organic Molecules

We report a new series of wide band-gap small organic molecules as donor-materials featuring an indaceno[1,2-b:5,6-b′]dithiophene (IDT) core and fluorinated thiophene linkers for solution-processed organic solar cells.

Tin instead of aluminum as a back electrode in P3HT:PC71BM organic solar cell

2021 ◽  
Author(s):  
Abdullah Almohammedi ◽  
Yasser Abdelrady Masoud Ismail ◽  
Mohd Taukeer Khan ◽  
Mohamed Benghanem ◽  
Saleh N Alamri ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Solar Cell ◽  
Electrical Properties ◽  
Thermal Annealing ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Acid Methyl Ester ◽  
Minor Effect ◽  
Performance Parameters

Abstract In the present work, a thin film of tin (Sn) metal, instead of aluminum, was deposited as a back electrode, using thermal evaporation, for fabricating organic solar cell composed of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C71 butyric acid methyl ester (PC71BM). The effect of post-thermal annealing on performance parameters of the solar cell has been investigated at low temperatures (suitable for organic solar cells) up to 180 oC. In addition, effect of thermal annealing on morphological (using scanning electron microscopy) and electrical properties (using Hall Effect setup) of the Sn thin films was reported and discussed here. The obtained minor effect of the thermal annealing on morphological and electrical properties of Sn thin films is offset by an improvement in the performance parameters of solar cells after post-annealing at 160 oC. The present study shows good electrical properties of the Sn thin films which are comparable with those of aluminum thin films.

scholarly journals Investigation of PCBM Concentration on the Performance of Small Organic Solar Cell

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Yasser A. M. Ismail ◽  
T. Soga ◽  
T. Jimbo
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Charge Carrier ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Acid Methyl Ester ◽  
Fullerene Derivative ◽  
Performance Parameters ◽  
Carrier Separation

We have fabricated bulk heterojunction organic solar cells using coumarin 6 (C6) as a small organic dye, for light harvesting and electron donating, with fullerene derivative [6,6]-phenyl-C61 butyric acid methyl ester (PCBM), acting as an electron acceptor, by spin-coating technique of the blend solutions. We have studied effect of PCBM concentration on photocurrent and performance parameters of the solar cells. We found that the optical absorption of the dye increased with increasing its concentration in the active layer blends. The higher concentrations of PCBM in active layer enhanced the photocurrent of the solar cells, as a result of improving charge carrier separation and electron transport in solar cell active layer. The improved charge carrier separation between C6, as a donor, and PCBM, as an acceptor, was indicated through the formation of bulk heterojunction by blending C6 with PCBM. The formation of C6:PCBM bulk heterojunction blend was confirmed through the symbatic behavior of the corresponding solar cell and, also, through the homogeneity and smoothing in the atomic force microscopy images of the C6:PCBM blend films. For the same reasons, the performance parameters of the C6:PCBM solar cell improved by modification of the PCBM concentration in the solar cell active layer.

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.

Synthesis of D–D–A-type small organic molecules with an enlarged linker system towards organic solar cells and the effect of co-adsorbents on cell performance

2016 ◽  
Vol 40 (1) ◽  
pp. 634-640 ◽  
Author(s):  
Priyanka P. Kumavat ◽  
Prashant K. Baviskar ◽  
Babasaheb R. Sankapal ◽  
Dipak S. Dalal
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Organic Molecules ◽  
Cell Performance ◽  
Small Organic Molecules

The synthesis of two D–D–A type novel small molecules and their applications in organic solar cells have been studied.

The first phosphorus-containing fullerene derivative applied as an electron acceptor material in organic solar cells

2010 ◽  
Vol 20 (3) ◽  
pp. 137-139 ◽  
Author(s):  
Pavel A. Troshin ◽  
Irina P. Romanov ◽  
Diana K. Susarov ◽  
Gulshat G. Yusupov ◽  
Aidar T. Gubaidullin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Fullerene Derivative ◽  
Phosphorus Containing

14.7% all-small-molecule organic solar cells enabled with fullerene derivative incorporation

2021 ◽  
Author(s):  
Hu Dingqin ◽  
Hua Tang ◽  
Haiyan Chen ◽  
Jie Lv ◽  
Shirong Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Fullerene Derivative ◽  
Photovoltaic Properties

Ternary strategy is promising to enhance the photovoltaic properties of organic solar cells (OSCs). Nevertheless, it is full of challenging when this approach involving only small molecule. Herein, a fullerene...

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