Flexible Organic Solar Cells Based on Spin-Coated Blend Films of a Phenylene-Thiophene Oligomer Derivative and PCBM

Duan, Zongfan; Fujii, Shunjiro; Liu, Zheng; Okukawa, Takanori; Yoshida, Akira; Yanagi, Yousuke; Kataura, Hiromichi; Zhao, Gaoyang; Nishioka, Yasushiro

doi:10.1080/15421406.2013.804384

Cited by 9 publications

(6 citation statements)

References 20 publications

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“…1) Organic semiconductors that play important roles in FPE have been applied in many electronic devices such as organic thin-film transistors (OTFTs), [2][3][4][5][6][7] organic light-emitting diodes (OLEDs), 8) and organic solar cells. [9][10][11][12][13][14][15][16][17][18][19] Organic bulk-heterojunction (BHJ) solar cells are especially interesting owing to their possible low-cost production, large area, and mechanical flexibility, because they can be fabricated by solution processing without using high vacuum equipment. [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26] Reyes et al reported on a BHJ solar cell based on poly(3-hexylthiophene): [6,6]-phenyl C 61 butyric acid methyl ester (P3HT:PCBM) blended films with a power conversion efficiency (PCE) approaching 5%.…”

Section: Introductionmentioning

confidence: 99%

Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC₇₁BM by optimizing spin coating and drying processes

Ohzeki

Fujii

Arai

et al. 2014

Jpn. J. Appl. Phys.

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Bulk-heterojunction solar cells were fabricated using a dichlorobenzene solution of poly[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]-thiophenediyl] (PTB7):[6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) on a flexible indium–tin-oxide-coated polyethylene terephthalate substrate. It was found that the performance of the solar cells could be markedly improved by minimizing the spin coating time of a blend of PTB7 and PC71BM to 10 s and maximizing the successive drying and solidification time up to 30 min in a confined Petri dish. As a result, a short-circuit current density of 14.5 mA/cm2, an open-circuit voltage of 0.62 V, and a power conversion efficiency of 3.67% were obtained. These improvements are attributed to the growth of favorable nanostructures during the slow drying process that increased the photocarrier collection efficiency while simultaneously increasing the performance fluctuations of each device.

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Section: Introductionmentioning

confidence: 99%

Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC₇₁BM by optimizing spin coating and drying processes

Ohzeki

Fujii

Arai

et al. 2014

Jpn. J. Appl. Phys.

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“…Among them, OSCs have attracted great attention due to their advantages such as easy fabrication, cost effectiveness, light weight, and flexibility which allows for an application to a variety of devices [8][9][10]. However, its low conversion efficiency and short lifetime limit its feasibility for a commercial use.…”

Section: Introductionmentioning

confidence: 99%

Remarkable Improvement of Organic Solar Cells Lifetime with Zn-doped In₂O₃Electrode as UV-blocking TCO

Bae

Han

Shin

et al. 2014

Molecular Crystals and Liquid Crystals

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We have studied the lifetime improvement of organic solar cells (OSCs) based on the conjugated polymer:fullerene blends using an ultra-violet (UV) blocking transparent conducting oxide (TCO). Without additional passivation films/layers or changing of structure, the performance of the OSC using UV blocking TCO was comparatively stable under the strong UV exposure. When 30 mW/cm 2 of UV was irradiated for 300 seconds, the V OC and FF of the OSC without UV blocking TCO decreased to 87% and 64%, respectively. As a result, power conversion efficiency (PCE) decreased to 54%. However, the V OC and FF of OSC with UV blocking TCO slightly decreased to 96% and 87%, respectively.

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“…Organic bulk-heterojunction (BHJ) solar cells are highly efficient solar cells with additional advantages such as low-cost production, large area, and mechanical flexibility, as they can be fabricated by solution processing without using high vacuum equipment [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Reyes et al reported on a BHJ solar cell based on [poly(3-hexylthiophene)]:( [6,6]-phenyl C61 butyric acid methyl ester) (P3HT:PC 61 BM) blend films with a power conversion efficiency (PCE) approaching 5% [4].…”

Section: Introductionmentioning

confidence: 99%

Bulk-heterojunction Solar Cells Based on Ternary Blend Active Layers of PTB7, PC<sub>61</sub>BM, and PC<sub>71</sub>BM

Qiu

Kiriishi

Hashiba

et al. 2015

J. Photopol. Sci. Technol.

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Bulk-heterojunction solar cells were fabricated using ternary blend dichlorobenzene solutions of poly [4,8-bis[(2-ethylhexyl)]-phenyl-C61-butyric acid methyl ester (PC 61 BM):[6,6]-phenyl C71 butyric acid methyl ester (PC 71 BM) with different weight ratios between PC 61 BM and PC 71 BM. In all the solar cells, the overall weight ratio of polymer to fullerene was maintained at 1:1.5, while the composition of the fullerene component (PC 61 BM:PC 71 BM) was varied. The ultraviolet-visible absorption spectra of these ternary blend films showed that the photon absorptions at wavelengths between 300 and 800 nm continuously decreased with the increase of the PC 61 BM weight fraction in the PC 61 BM and PC 71 BM total weight. The measurement results of the solar cell performance showed that the open-circuit voltage notably increased for PC 61 BM weight fractions between 10% and 90%, while it decreased at 100%. The short-circuit current showed the most significant increase in the PC 61 BM weight fraction range between 50% and 60%. A power conversion efficiency of 3.4% was achieved when the PC 61 BM weight fraction was between 50% and 60%. These results may suggest that the transport of the photoexcited electrons between the cathode and the PC 61 BM/PC 71 BM nanodomains was enhanced.

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Flexible Organic Solar Cells Based on Spin-Coated Blend Films of a Phenylene-Thiophene Oligomer Derivative and PCBM

Cited by 9 publications

References 20 publications

Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC₇₁BM by optimizing spin coating and drying processes

Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC₇₁BM by optimizing spin coating and drying processes

Remarkable Improvement of Organic Solar Cells Lifetime with Zn-doped In₂O₃Electrode as UV-blocking TCO

Bulk-heterojunction Solar Cells Based on Ternary Blend Active Layers of PTB7, PC<sub>61</sub>BM, and PC<sub>71</sub>BM

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Flexible Organic Solar Cells Based on Spin-Coated Blend Films of a Phenylene-Thiophene Oligomer Derivative and PCBM

Cited by 9 publications

References 20 publications

Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC71BM by optimizing spin coating and drying processes

Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC71BM by optimizing spin coating and drying processes

Remarkable Improvement of Organic Solar Cells Lifetime with Zn-doped In2O3Electrode as UV-blocking TCO

Bulk-heterojunction Solar Cells Based on Ternary Blend Active Layers of PTB7, PC<sub>61</sub>BM, and PC<sub>71</sub>BM

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Product

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Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC₇₁BM by optimizing spin coating and drying processes

Performance improvement of flexible bulk heterojunction solar cells using PTB7:PC₇₁BM by optimizing spin coating and drying processes

Remarkable Improvement of Organic Solar Cells Lifetime with Zn-doped In₂O₃Electrode as UV-blocking TCO