An annealing-free anatase TiO2 nanocrystal film as an electron collection layer in organic solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (108) ◽  
pp. 88973-88978 ◽  
Author(s):  
Di Li ◽  
Yanli Chen ◽  
Peng Du ◽  
Zhao Zhao ◽  
Haifeng Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Anatase Tio2 ◽  
High Quality ◽  
Electron Collection

An annealing-free TiO2 electron collection layer in organic solar cell based on ultrafine, clean and high-quality anatase TiO2 nanocrystals.

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...

Fabrication and characterization of CuPc and PCBM based organic solar cell with metal interlayer

2015 ◽  
Vol 12 (5) ◽  
pp. 413-420
Author(s):  
Muhammad Ahsan Naveed ◽  
A. Hussain ◽  
K. Islam ◽  
P. Akhter
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Impedance Spectroscopy ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Silver Layer ◽  
Absorbance Spectrum ◽  
Heterojunction Solar Cells ◽  
Processing Cost ◽  
Donor Acceptor

Organic solar cells have potential as an alternative to conventional inorganic solar cell due to low processing cost, flexibility and easy fabrication technique. The goal of this paper is to study the characteristics of the CuPc and PCBM based organic solar cell by introducing a thin layer of Ag at the interface of donor (CuPc) and Acceptor (PCBM), their photovoltaic and optical properties were investigated. The heterojunction solar cells with and without silver inter layer were fabricated through thermal deposition in HR vacuum. The OPV solar cells were characterized using current-voltage graphs, absorbance spectrum and Impedance spectroscopy. Impedance spectroscopy was taken to identify the traps using series resistance, parallel resistance, and Impedance spectrums under different frequencies. Optical behaviors of these devices have been investigated with absorbance spectrum. Introducing Ag to interfacing point produced traps and these traps causes to decreased Voc, Isc, FF, and efficiency. The effect of silver layer at donor acceptor interface was studied.

Stability of inverted organic solar cells with ZnO contact layers deposited from precursor solutions

2015 ◽  
Vol 8 (2) ◽  
pp. 592-601 ◽  
Author(s):  
Bradley A. MacLeod ◽  
Bertrand J. Tremolet de Villers ◽  
Philip Schulz ◽  
Paul F. Ndione ◽  
Hyungchul Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Phosphonic Acid ◽  
Organic Solar Cells ◽  
Zinc Acetate ◽  
Organic Solar Cell ◽  
Solution Processed ◽  
Interstitial Zinc ◽  
Cell Stability

Interstitial zinc defects in solution-processed ZnO can be mitigated by using a diethylzinc precursor instead of zinc acetate, or by modifying the ZnO surface with a phosphonic acid, resulting in improved organic solar cell stability.

New indolo carbazole-based non-fullerene n-type semiconductors for organic solar cell applications

2019 ◽  
Vol 7 (3) ◽  
pp. 543-552 ◽  
Author(s):  
Suman Suman ◽  
Afzal Siddiqui ◽  
M. L. Keshtov ◽  
Ganesh D. Sharma ◽  
Surya Prakash Singh
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Molecular Engineering ◽  
End Groups

In this work, two new indolo-[3,2-b]-carbazole (ICz) core-based non-fullerene acceptors (ICz-Rd2 and ICz-RdCN2) with an A–π–D–π–A backbone were designed, synthesized, and characterized and the influence of molecular engineering on the terminal end groups on their performance in organic solar cells (OSCs) was systematically examined.

Plasmonic organic solar cell employing Au NP:PEDOT:PSS doped rGO

RSC Advances ◽  
2015 ◽  
Vol 5 (30) ◽  
pp. 23892-23899 ◽  
Author(s):  
Seung Joo Lee ◽  
Jae-Yeon Kim ◽  
Abd. Rashid bin Mohd Yusoff ◽  
Jin Jang
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Au Nps ◽  
Control Devices ◽  
Comprehensive Study

We report a comprehensive study of the influence of NPs on organic solar cells by introducing Au NPs into OSCs fabricated using PEDOT:PSS:rGO. The PEDOT:PSS:rGO embedded with Au NPs had better Jsc and PCE values than the control 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.

scholarly journals A “roller-wheel” Pt-containing small molecule that outperforms its polymer analogs in organic solar cells

2016 ◽  
Vol 7 (9) ◽  
pp. 5798-5804 ◽  
Author(s):  
Wenhan He ◽  
Maksim Y. Livshits ◽  
Diane A. Dickie ◽  
Jianzhong Yang ◽  
Rachel Quinnett ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Small Molecules ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Enhanced Crystallinity

“Roller-wheel” shaped Pt-containing molecules display enhanced crystallinity and are better performing organic solar cell materials than conventional small molecules and polymers featuring “dumbbell” shaped structures.

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.

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.

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