scholarly journals Study of the Contributions of Donor and Acceptor Photoexcitations to Open Circuit Voltage in Bulk Heterojunction Organic Solar Cells

Electronics ◽  
2017 ◽  
Vol 6 (4) ◽  
pp. 75 ◽  
Author(s):  
Douglas Yeboah ◽  
Jai Singh
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Open Circuit ◽  
Donor And Acceptor

Open circuit voltage of stacked bulk heterojunction organic solar cells

2006 ◽  
Vol 88 (7) ◽  
pp. 073514 ◽  
Author(s):  
Kenji Kawano ◽  
Norihiro Ito ◽  
Taisuke Nishimori ◽  
Jun Sakai
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Open Circuit

Substituent effects in magnesium tetraethynylporphyrin with two diketopyrrolopyrrole units for bulk heterojunction organic solar cells

2017 ◽  
Vol 5 (44) ◽  
pp. 23067-23077 ◽  
Author(s):  
Keisuke Ogumi ◽  
Takafumi Nakagawa ◽  
Hiroshi Okada ◽  
Ryohei Sakai ◽  
Huan Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Substituent Effects ◽  
Open Circuit ◽  
Donor Acceptor

Acceptor–donor–acceptor conjugated magnesium porphyrins showed a power conversion efficiency of 5.73%, high open-circuit voltage of 0.79 V, or an extended incident photon-to-current conversion efficiency spectrum to 1100 nm, depending on the substituents.

Origin of the Tunable Open-Circuit Voltage in Ternary Blend Bulk Heterojunction Organic Solar Cells

2013 ◽  
Vol 135 (3) ◽  
pp. 986-989 ◽  
Author(s):  
Robert A. Street ◽  
Daniel Davies ◽  
Petr P. Khlyabich ◽  
Beate Burkhart ◽  
Barry C. Thompson
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Open Circuit ◽  
Ternary Blend

Temperature dependent behavior of flat and bulk heterojunction organic solar cells

2013 ◽  
Vol 1493 ◽  
pp. 269-273 ◽  
Author(s):  
Johannes Widmer ◽  
Karl Leo ◽  
Moritz Riede
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Bulk Heterojunction ◽  
Qualitative Difference ◽  
Open Circuit ◽  
Illumination Intensity ◽  
Zinc Phthalocyanine ◽  
Dependent Behavior ◽  
Donor And Acceptor ◽  
Donor Acceptor

ABSTRACTThe open-circuit voltage of an organic solar cell is increasing with decreasing temperature and with increasing illumination intensity. These dependencies are quantitatively investigated for two types of organic solar cells, one with a flat donor-acceptor heterojunction and one with a mixed layer bulk heterojunction. Zinc-phthalocyanine and C60 are used as donor and acceptor, respectively. A qualitative difference is found for the two geometries. We find that a logarithmic illumination intensity dependence with temperature as a linear pre-factor of the logarithm, which is commonly reported and observed, is applicable for the bulk heterojunction. The flat heterojunction, in contrast, shows a constant illumination intensity pre-factor which is independent of the temperature, and the temperature can be modeled as additional linear summand.

Diindeno[1,2-g:1′,2′-s]rubicene: all-carbon non-fullerene electron acceptor for efficient bulk-heterojunction organic solar cells with high open-circuit voltage

RSC Advances ◽  
2015 ◽  
Vol 5 (5) ◽  
pp. 3381-3385 ◽  
Author(s):  
Hung-Yang Chen ◽  
Jan Golder ◽  
Shih-Chieh Yeh ◽  
Chiao-Wen Lin ◽  
Chao-Tsen Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Open Circuit

An all carbon non-fullerene electron acceptor material based on diindeno[1,2-g:1′,2′-s]rubicene (DIR) was readily synthesized and processed for bulk-heterojunction organic solar cells.

Bulk heterojunction organic solar cells based on carbazole–BODIPY conjugate small molecules as donors with high open circuit voltage

2015 ◽  
Vol 17 (40) ◽  
pp. 26580-26588 ◽  
Author(s):  
Thaksen Jadhav ◽  
Rajneesh Misra ◽  
S. Biswas ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Power Conversion Efficiency ◽  
Active Layer ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Open Circuit

The power conversion efficiency of an optimized3a:PC71BM active layer based device is 5.05%.

High open circuit voltage organic solar cells based upon fullerene free bulk heterojunction active layers

2014 ◽  
Vol 92 (10) ◽  
pp. 932-939 ◽  
Author(s):  
Ala’a F. Eftaiha ◽  
Jon-Paul Sun ◽  
Arthur D. Hendsbee ◽  
Casper Macaulay ◽  
Ian G. Hill ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Field Effect Transistors ◽  
Bulk Heterojunction ◽  
Energy Levels ◽  
Open Circuit ◽  
Frontier Molecular Orbital ◽  
Orbital Energy ◽  
High Electron

We have recently reported on a small organic molecule containing a bithiophene core with end-capping phthalimide units (PthTh2Pth) that exhibited a H-aggregation tendency in the solid state and high electron mobility in organic field effect transistors. In this contribution, we have studied both the physical and electrical properties of poly(3-hexylthiophene) (P3HT) and PthTh2Pth thin films by measuring the optical absorption, Frontier molecular orbital energy levels, photoluminescence quenching, thermal properties, and photovoltaic response. Our results have provided a useful insight into the use of PthTh2Pth as an electron acceptor material for organic photovoltaic applications. In comparison with high-performance, fullerene-based, solution-processed bulk heterojunction solar cells reported in the literature, a relatively high open circuit voltage (∼0.94 V) was obtained for various donor–acceptor blend ratios. These results highlight the potential for PthTh2Pth to act as an alternative to fullerenes as acceptors in organic solar cell devices.

Novel perylene diimide acceptor for nonfullerene organic solar cells

2019 ◽  
Vol 12 (03) ◽  
pp. 1950022 ◽  
Author(s):  
Yuming Liang ◽  
Ping Deng ◽  
Zhongtao Wang ◽  
Zhiyong Guo ◽  
Yanlian Lei
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Perylene Diimide ◽  
Organic Photovoltaic

Nonfullerene electron acceptor materials have gained enormous attention due to their potential as replacements of fullerene electron acceptors in bulk heterojunction organic solar cells. A novel thiophene bridged selenophene-containing perylene diimide acceptor PDISe-T has been synthesized and applied as an acceptor in nonfullerene organic photovoltaic cells. The inverted organic photovoltaic (OPV) solar cells based on PDISe-T:PBT7-Th (acceptor:donor) blends give a power conversion efficiency (PCE) value of 2.53% with an open-circuit voltage ([Formula: see text] of 0.92[Formula: see text]V, a [Formula: see text] of 6.55[Formula: see text]mA[Formula: see text]cm[Formula: see text], and a fill factor (FF) of 0.42.

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