Highly efficient flexible inverted organic solar cells using atomic layer deposited ZnO as electron selective layer

Wang, Jen-Chun; Weng, Wei Tse; Tsai, Meng Yen; Lee, Ming Kun; Horng, Sheng Fu; Perng, Tsong‐Pyng; Kei, Chi-Chung; Yu, Chih Chieh; Meng, Hsin‐Fei

doi:10.1039/b921396a

Cited by 213 publications

(139 citation statements)

References 29 publications

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“…Then 10 nm MoO 3 and 80 nm Ag were thermally evaporated onto the active layer through a metal shadow mask. The devices' area was about 8 mm 2 The J-V characteristics of the devices were measured by a Xenon lamp (XEC-300M2, SANEI ELECTRIC, Shizuoka, Japan) with an air mass (AM) 1.5 G filteratan intensity of 100 mW/cm 2 and a Keithley 2400 source-measure unit [30]. The Xenon lamp is verified through a standard Si solar cell calibrated by the National Renewable Energy Laboratory (NREL).…”

Section: Fabrication and Measurement Of Flexible Organic Solar Cellsmentioning

confidence: 99%

“…Due to the potential of low-cost, flexibility, light weight and compatibility with roll-to-roll fabrication, organic solar cells (OSCs) have attracted much research attention [1][2][3][4]. After continuous efforts in recent years, OSCs with power conversion efficiency (PCE) above 10%-12% have been achieved, based on the widely used bulk heterojunction (BHJ) of donor-accepter blend [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Low Temperature Aqueous Solution-Processed ZnO and Polyethylenimine Ethoxylated Cathode Buffer Bilayer for High Performance Flexible Inverted Organic Solar Cells

You

Zhang

et al. 2017

Energies

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]-phenyl-C 71 -butyric acid methyl ester (PTB-7:PC 71 BM) material systems. It is found that, compared with pure ZnO or PEIE cathode buffer layer (CBL), the proper combination of low-temperature processed ZnO and PEIE as the CBL enhanced the short circuit current density (J SC ), resulting in better device performance. The increased J SC results from the enhanced electron collection ability from the active layer to the cathode. By using the ZnO/PEIE CBL, a power conversion efficiency (PCE) as high as 4.04% for the P3HT:PC 61 BM flexible device and a PCE as high as 8.12% for the PTB-7:PC 71 BM flexible device are achieved, which are higher than the control devices with the pure ZnO CBL or pure PEIE CBL. The flexible inverted OSC also shows a superior mechanical property and it can keep 92.9% of its initial performance after 1000 bending cycles with a radius of 0.8 cm. These results suggest that the combination of the low temperature aqueous solution processed ZnO and PEIE can be a promising cathode buffer bilayer for flexible inverted OSCs.

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Section: Fabrication and Measurement Of Flexible Organic Solar Cellsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Low Temperature Aqueous Solution-Processed ZnO and Polyethylenimine Ethoxylated Cathode Buffer Bilayer for High Performance Flexible Inverted Organic Solar Cells

You

Zhang

et al. 2017

Energies

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“…Ultrathin glass is also very useful material for deposition of thin layer with the use of atomic layer deposition (ALD) techniques [10] or spin-and spray-coating [11]. One alternative concept for the flexible solar cells is based on the introduction of polymer foils as a substrate instead of glass [12][13][14][15] but ultrathin glass after chemical strengthening is better material for building integrated photovoltaic (BIPV) sector through their transparency and hardness.…”

Section: Introductionmentioning

confidence: 99%

Ultrathin Glass for the Photovoltaic Applications

Dziedzic¹,

Inglot

2017

Acta Phys. Pol. A

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Chemically strengthened ultrathin glass with a thickness of less than 1 mm has many advantages, such as flexibility, smooth surface, good transmittance, excellent gas and water barrier, much higher toughened in relations to thermally tempered glass, higher impact resistance, increased corrosion resistance and much higher abrasion rate. Chemical strengthening process is a process where an ion exchange occurs by diffusion between the glass panes and the brine solution bath. The deeper penetration of the glass surface by ions contained in the brine bath contributes to the hardness of the glass sheets, which reduces the occurrence of surface defects that cause reflections. From the point of view of photovoltaic applications ultrathin glass significantly reduces the weight of the whole photovoltaic panel structure with respect to known solutions. Furthermore, the reduction of the glass thickness increases the transmission of solar energy in the visible range directly through the glass. In addition, chemical tempered glass has a lower reflectance of light from the surface than the thermally tempered glass. What is more, ultrathin glass is perfect substrate for deposition of nanomaterials, i.e. conductive films or quantum dots.In this work we demonstrate that chemically strengthened ultrathin glass is a perfect material for the photovoltaic applications, i.e. as a substrate for deposition of thin layers and for the design of photovoltaic modules of reduced weight.

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“…It could be said that poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl-C61 butyric acid methyl ester (PCBM) are considered as the most investigated materials for OSCs [2]. The inverted organic solar cells (IOSCs) exhibit competitive performance and offer better stability compared with the traditional OSCs [3]. The nature of the contacts on both sides of the active layer is considered as an essential feature to determine the OSCs parameters, hence the final power conversion efficiency (PCE) [4].…”

Section: Introductionmentioning

confidence: 99%

Rutile TiO2 films as electron transport layer in inverted organic solar cell

Al‐Hashimi¹,

Kadem

Hassan

2018

J Mater Sci: Mater Electron

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Titanium dioxide (TiO 2 ) thin films were prepared by sol-gel spin coating method and deposited on ITO-coated glass substrates. The effects of different heat treatment annealing temperatures on the phase composition of TiO 2 films and its effect on the optical band gap, morphological, structural as well as using these layers in P3HT:PCBM-based organic solar cell were examined. The results show the presence of rutile phases in the TiO 2 films which were heat-treated for 2h at different temperatures (200 o C, 300 o C, 400 o C, 500 o C and 600 o C). The optical properties of the TiO 2 films have altered by temperature with a slight decrease in the transmittance intensity in the visible region with increasing the temperature. The optical band gap values were found to be in the range of 3.28-3.59eV for the forbidden direct electronic transition and 3.40-3.79eV for the allowed direct transition.TiO 2 layers were used as electron transport layer in inverted organic solar cells and resulted in a power conversion efficiency of 1.59% with short circuit current density of 6.64mA.cm -2 for TiO 2 layer heat-treated at 600 o C.

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Highly efficient flexible inverted organic solar cells using atomic layer deposited ZnO as electron selective layer

Cited by 213 publications

References 29 publications

Low Temperature Aqueous Solution-Processed ZnO and Polyethylenimine Ethoxylated Cathode Buffer Bilayer for High Performance Flexible Inverted Organic Solar Cells

Low Temperature Aqueous Solution-Processed ZnO and Polyethylenimine Ethoxylated Cathode Buffer Bilayer for High Performance Flexible Inverted Organic Solar Cells

Ultrathin Glass for the Photovoltaic Applications

Rutile TiO2 films as electron transport layer in inverted organic solar cell

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