On the short circuit resilience of organic solar cells: prediction and validation

2015 ◽  
Vol 17 (33) ◽  
pp. 21501-21506 ◽  
Author(s):  
A. Jolt Oostra ◽  
Edsger C. P. Smits ◽  
Dago M. de Leeuw ◽  
Paul W. M. Blom ◽  
Jasper J. Michels
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Fault Tolerance ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Short Circuit ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Short Circuits

As flexible organic solar cell performance suffers from processing-related short-circuits, quantitative insight in the effect of flaws is eminent. This work provides such insight and explains how an intrinsic healing mechanism significantly enhances fault-tolerance.

scholarly journals Enhancement of organic solar cell performance by incorporating gold quantum dots (AuQDs) on a plasmonic grating

2020 ◽  
Vol 2 (7) ◽  
pp. 2950-2957 ◽  
Author(s):  
Sopit Phetsang ◽  
Supeera Nootchanat ◽  
Chutiparn Lertvachirapaiboon ◽  
Ryousuke Ishikawa ◽  
Kazunari Shinbo ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solar Cell ◽  
Quantum Dot ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
System P ◽  
Plasmonic Grating

The performance of organic solar cells was improved by the effect of a synergistic gold quantum dot/plasmonic grating system.

Chemical Composition Dependence of Cu2ZnSnS4 Absorbers Fabricated by Sulfurization of Thermal Evaporated Metal Precursors and Solar Cell Performance

2015 ◽  
Vol 1738 ◽  
Author(s):  
Liyuan Zhang ◽  
Sreejith Karthikeyan ◽  
Mandip J. Sibakoti ◽  
Stephen A. Campbell
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Chemical Composition ◽  
Conversion Efficiency ◽  
Small Deviation ◽  
Short Circuit ◽  
Cell Performance ◽  
Czts Thin Film ◽  
Solar Cell Performance

ABSTRACTWe investigate the synthesis of kesterite Cu2ZnSnS4 (CZTS) thin films using thermal evaporation from copper, zinc and tin pellets and post-annealing in a sulfur atmosphere. The effects of chemical composition were studied both on the absorber layer properties and on the final solar cell performance. It is confirmed that CZTS thin film chemical composition affects the carrier concentration profile, which then influences the solar cell properties. Solar cells using a CZTS thin film with composition ratio Cu/(Zn+Sn) = 0.87, and Zn/Sn = 1.24 exhibited an open-circuit voltage of 483 mV, a short-circuit current of 14.54 mA/cm2, a fill factor of 37.66 % and a conversion efficiency of 2.64 %. Only a small deviation from the optimal chemical composition can drop device performance to a lower level, which confirms that the CZTS solar cells with high conversion efficiency existed in a relatively narrow composition region.

scholarly journals The Effect of Solar Radiation and Temperature on Solar Cell Performance in Khartoum state

2021 ◽  
pp. 45-55
Author(s):  
Wail Hessen ALawad ALHessen ◽  
Abdelnabe Ali Elamin Ali ◽  
Mohammed Habib Ahmed El_kanzi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Solar Radiation ◽  
Operating Temperature ◽  
Short Circuit ◽  
Maximum Output Power ◽  
Cell Performance ◽  
Maximum Output ◽  
Operation Condition ◽  
Solar Cell Performance

In this paper, the performance of solar cells was studied and evaluated . The role of several effects for operation condition such as temperature, sunlight intensity on the solar cells output parameters has been studied. Experimental results showed that relationship between the amount of solar cell output parameters variations such as maximum output power, open circuit voltage, short circuit current, and efficiency in terms of temperature and light intensity. The measurements were carried out for the intensity of solar radiation in Khartoum area in Sudan, from February month to April month which records the solar radiation in W/m2, The results were collected from 10 Am to 4 pm, three days per week, data were averaged and also illustrated in the form of graphs of solar radiation as a function of the time of the day. The operating temperature plays a key role in the photovoltaic conversion process. Both the electrical efficiency and the power output of the solar cell depend on the operating temperature. Solar cell performance decreases with increasing temperature.

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.

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.

scholarly journals Increased short circuit current in an azafullerene-based organic solar cell

2015 ◽  
Vol 51 (6) ◽  
pp. 1128-1130 ◽  
Author(s):  
Werther Cambarau ◽  
Urs F. Fritze ◽  
Aurélien Viterisi ◽  
Emilio Palomares ◽  
Max von Delius
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Short Circuit ◽  
Short Circuit Current

We report azafullerene monoadduct DPC59N, which in organic solar cells outperforms benchmark acceptor PC60BM in respect to JSC and EQE.

The influence of alkyl side chains on molecular packing and solar cell performance of dithienopyrrole-based oligothiophenes

2016 ◽  
Vol 4 (27) ◽  
pp. 10514-10523 ◽  
Author(s):  
Gisela L. Schulz ◽  
Prasenjit Kar ◽  
Martin Weidelener ◽  
Astrid Vogt ◽  
Marta Urdanpilleta ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Cell Performance ◽  
Substitution Pattern ◽  
Solar Cell Performance ◽  
Alkyl Substitution ◽  
Alkyl Side Chains ◽  
Solvent Additive

Dithienopyrrole-based small molecular materials were developed achieving PCEs up to 5.3% in bulk-heterojunction organic solar cells by the tuning of the alkyl substitution pattern and use of a solvent additive.

Boron-Nitrogen Doped Dihydroindeno[1,2-b]fluorene Derivatives as Acceptors in Organic Solar Cells

2019 ◽  
Author(s):  
Matthew Morgan ◽  
Maryam Nazari ◽  
Thomas Pickl ◽  
J. Mikko Rautiainen ◽  
Heikki M. Tuononen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Broad Absorption ◽  
Nitrogen Doped ◽  
Large Depth ◽  
End Products ◽  
Boron Nitrogen ◽  
The Way

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%.

Additive-induced Miscibility Regulation and Hierarchical Morphology Enables 17.5% Binary Organic Solar Cells

2021 ◽  
Author(s):  
Jie Lv ◽  
Hua Tang ◽  
Jiaming Huang ◽  
Cenqi Yan ◽  
Kuan Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Power Conversion ◽  
Charge Trapping ◽  
Free Charge ◽  
Charge Generation ◽  
Low Charge ◽  
Hierarchical Morphology

Due to the barrierless free charge generation, low charge trapping, and high charge mobilities, the PM6:Y6 organic solar cell (OSC) achieves excellent power conversion efficiency (PCE) of 15.7%. However, the...

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