Enhanced performance of polymer solar cells based on PTB7-Th:PC71BM by doping with 1-bromo-4-nitrobenzene

2017 ◽  
Vol 5 (42) ◽  
pp. 10985-10990 ◽  
Author(s):  
Rui Fan ◽  
Zhaoxiang Huai ◽  
Yansheng Sun ◽  
Xiaowei Li ◽  
Guangsheng Fu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cell ◽  
Polymer Solar Cells

A fluorescence inhibitor 1-bromo-4-nitrobenzene was introduced into the PTB7-Th:PC71BM active layer to prepare an organic solar cell that exhibited a high PCE of 8.95%.

Regulating active layer thickness and morphology for high performance hot-casted polymer solar cells

2020 ◽  
Vol 8 (24) ◽  
pp. 8191-8198
Author(s):  
Ritesh Kant Gupta ◽  
Rabindranath Garai ◽  
Mohammad Adil Afroz ◽  
Parameswar Krishnan Iyer
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Layer Thickness ◽  
Active Layer ◽  
High Performance ◽  
Carrier Mobility ◽  
Polymer Solar Cells ◽  
Active Layer Thickness ◽  
Casting Technique ◽  
High Performance Polymer

Fabrication of high performance polymer solar cells through the hot-casting technique, which modulates the thickness and roughness of the active layer and also the carrier mobility of the solar cell devices.

scholarly journals Air-processed active-layer of organic solar cells investigated by conducting AFM for precise defect detection

RSC Advances ◽  
2020 ◽  
Vol 10 (42) ◽  
pp. 24882-24892 ◽  
Author(s):  
Anjusree S. ◽  
Arya K. R. ◽  
Bikas C. Das
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Defect Detection ◽  
Organic Solar Cells ◽  
Organic Solar Cell

Current imaging by C-AFM is demonstrated as a very effective tool to probe the defects in the organic solar cell active layer.

Enhanced efficiency and stability of nonfullerene ternary polymer solar cells based on a spontaneously assembled active layer: the role of a high mobility small molecular electron acceptor

2020 ◽  
Vol 8 (18) ◽  
pp. 6196-6202 ◽  
Author(s):  
Dou Luo ◽  
Ming Zhang ◽  
Jian-Bin Li ◽  
Zuo Xiao ◽  
Feng Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Electron Acceptor ◽  
Polymer Solar Cells ◽  
High Mobility ◽  
Molecular Electron ◽  
Ternary Polymer

Introducing a medium bandgap electron acceptor into the PTB7-Th:COi8DFIC solar cell increases both thermal stability and PCE without external treatments.

Production and characterization of organic solar cells

2018 ◽  
Vol 15 (4) ◽  
pp. 540-548 ◽  
Author(s):  
Kindness A.M. Uyanga ◽  
Modestus Okechukwu Okwu ◽  
A.O. Adeoye ◽  
S.E. Ogbeide
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Short Circuit ◽  
Active Material ◽  
Soda Lime Glass ◽  
Content Type ◽  
Different Temperatures

Purpose The study aims to carry out the production of a bulk heterojunction organic solar cell in a laboratory scale using a blend of poly (3-hexylthiopene) (P3HT) and [6, 6]-phenyl (C61) butyric acid methyl ether (PCBM). Design/methodology/approach Four inverted geometry organic solar cells were prepared based on 1:1 ratio of P3HT to PCBM and subjected to post annealing at different temperatures of 32, 120, 130 and 140°C. Solar cells were fabricated with structure glass/ITO/P3HT:PCBM/PEDOT:PSS/Au and characterized using Keithley 2400 series sourcemeter and a multimeter interfaced to a computer system with a LabVIEW software, which showed both dark and illumination current–voltage characteristic curves. Four reference cells were also fabricated with structure soda lime glass/P3HT:PCBM and annealed at different temperatures of 32, 120, 130 and 140°C. Findings The third organic solar cell prepared, Sample CITO, had the best performance with power conversion efficiency (PCE) of 2.0281 per cent, fill factor (FF) of 0.392, short circuit current of −0.0133 A and open circuit voltage of 0.389 V. Annealing of active layer was found to improve cell morphology, FF and PCE. Annealing of the active layer at 140°C resulted in a decrease of the PCE to 2.01 per cent. Research limitations/implications These findings are in good agreement with previous investigation in literature which reported that best annealing temperature for a 1:1 ratio blend of active material is 130°C. Ultraviolet–visible spectra on reference cells showed that sample CITO had wider absorption spectra with peak absorbance at a wavelength of 508 nm. Originality/value This research is purely original.

Improving the charge transport of the ternary blend active layer for efficient semitransparent organic solar cells

2020 ◽  
Vol 13 (12) ◽  
pp. 5177-5185
Author(s):  
Pan Yin ◽  
Zhigang Yin ◽  
Yunlong Ma ◽  
Qingdong Zheng
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Charge Transport ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Ternary Blend ◽  
Visible Transmittance

With the aid of a suitable third component acceptor material, the best-performance semitransparent organic solar cell shows an outstanding efficiency of 13.49% at an average visible transmittance of 22.58%.

Effect of Solvent Annealing for Efficient Polymer Solar Cells

2013 ◽  
Vol 724-725 ◽  
pp. 147-150
Author(s):  
Min Ho Seo ◽  
Kyu Jin Kim ◽  
Bao Yin Han ◽  
Gopalan Sai Anand ◽  
Su Hwan Kim ◽  
...  
Keyword(s):  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cell ◽  
Series Resistance ◽  
Polymer Solar Cells ◽  
Treatment Method ◽  
Annealing Process ◽  
Solvent Annealing ◽  
Effect Of Solvent ◽  
Pristine Sample

In this paper, we investigate an active layer treatment method that is referred to as solvent annealing. Organic solar cell was fabricated and an isopropanol (IPA) solvent annealing process was carried out. The experiment result should that the value of absorbance and the crystallinity is improved by isopropanol solvent annealing of active layer. Moreover, the current density, series resistance and the efficiency improved, leading to enhanced efficiency of 3.22%, whereas a pristine sample showed an efficiency of 3.04%

Improve Efficiency of Organic Solar Cell by Adding Dispersed ZnO Nanoparticles

2013 ◽  
Vol 842 ◽  
pp. 43-51
Author(s):  
Yang Ming Lu ◽  
Yu Fan Wu ◽  
Lien Chung Hsu
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Zno Nanoparticles ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Weight Ratio ◽  
Acid Methyl Ester ◽  
Well Being ◽  
Organic Polymer

The poly (3-hexylthiophene) (P3HT) is a promising candidate material for using in polymer solar cells researches due to its good absorbance and stability. In this study, we present the electro-optical performance of organic polymer solar cells based on P3HT: [6,-phenyl-C61-butyric acid methyl ester (PCBM) with weight ratio of 1:1. We added ZnO nanoparticles into the blending of P3HT and PCBM to improve the performance of polymer solar cells. ZnO nanoparticles are very promising inorganic metal oxides for use in organic solar cells because of its low cost, nontoxicity, high reflectance and good electron transport properties. The morphology of polymer solar cell was improved due to the additional of ZnO nanoparticles. The effects of thermal annealing on the solar cell had been studied. The post-annealing shows significant improvement in the performance for solar cell. How to prevent ZnO nanoparticles to agglomerate is essential as they are added to the active layer of the solar cell. Well dispersed ZnO nanoparticles are obtained by using the methanol solvent. The best performances of the solar cell with short-circuit current density of 14.66 mW/cm2 and efficiency of 3.92% can be obtained after post-annealed with well being dispersed 1.3wt% ZnO nanoparticles in the active layer.

Influence of the Active Layer Thickness on Non-Fullerene Polymer Solar Cell Performance

2018 ◽  
Vol 271 ◽  
pp. 106-111
Author(s):  
Jun Ning ◽  
Ming Ming Bao ◽  
Lian Hong ◽  
Hasichaolu ◽  
Bolag Altan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Layer Thickness ◽  
Active Layer ◽  
Spin Coating ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Cell Performance ◽  
Active Layer Thickness ◽  
Solar Cell Performance

Research on polymer solar cells has attracted increasing attention in the past few decades due to the advantages such as low cost of fabrication, ease of processing, mechanical flexibility, etc. In recent years, non-fullerene polymer solar cells are extensively studied, because of the reduced voltage losses, and the tunability of absorption spectra and molecular energy level of non-fullerene acceptors. In this work, polymer solar cells based on conjugated polymer (PBDB-T: poly [(2,6-(4,8-bis (5-(2-ethylhexyl) thiophen-2-yl)-benzo [1,2-b:4,5-b’] dithiophene))-alt-(5,5-(1’,3’-di-2-thienyl-5’,7’-bis (2-ethylhexyl) benzo [1’,2’-c:4’,5’-c’] dithiophene-4,8-dione))]) and non-fullerene electron acceptor (ITIC: 3,9-bis (2-methylene-(3-(1,1-dicyanomethylene)-indanone)) -5,5,11,11-tetrakis (4-hexylphenyl)-dithieno [2,3-d:2’,3’-d’]-s-indaceno [1,2-b:5,6-b’] dithiophene) were prepared by means of spin-coating method, and the influence of the active layer thickness on the device performance was investigated. PBDB-T: ITIC active layers with different thickness were prepared through varying spin coating speed. It was found that the solar cell performance is best when the active layer thickness is 100 nm, corresponding to the spin coating speed of 2000 rpm. Maximum power conversion efficiency of 7.25% with fill factor of 65%, open circuit voltage of 0.85 V and short circuit current density of 13.02 Am/cm2 was obtained.

Optimal top electrodes for inverted polymer solar cells

2015 ◽  
Vol 17 (3) ◽  
pp. 2152-2159 ◽  
Author(s):  
Hye Rim Yeom ◽  
Jungwoo Heo ◽  
Gi-Hwan Kim ◽  
Seo-Jin Ko ◽  
Seyeong Song ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cell ◽  
Polymer Solar Cells ◽  
Silver Electrodes ◽  
Inverted Polymer Solar Cells

A variety of metals were investigated as electrodes in inverted organic solar cell devices; highly reflective silver electrodes were found to yield outstanding performance and stability compared to other metals.

Study of Al/Organic/ITO Polymer Solar Cell on Glass Substrate

2013 ◽  
Vol 448-453 ◽  
pp. 1446-1451
Author(s):  
Yi Tsung Chang ◽  
Jen Hong Su ◽  
Yi Ting Shih ◽  
Yen Lin Shih
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Glass Substrate ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Single Layer ◽  
Short Circuit Current ◽  
Open Circuit

A single layer of organic solar cells with the Al/P3HT/PEDOT: PSS/ITO structure on glass substrate was investigated in this paper, and examined the performance of the polymer solar cells by changing 60, 70 and 80 nm thickness of the P3HT active layer. These devices had better absorption in the active layer and poor charges collect in the electrode with increase thickness of active layer were observed. It is found that the best properties that the single layer organic solar cell with open-circuit voltage 0.457 V, short-circuit current 1.05E-4 mA and power conversion efficiency of 3.3E-5% was achieved under illumination 100 mW/cm2 when the thickness of P3HT active layer is about 80 nm.

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