Comparison of large scale coating techniques for organic and hybrid films in polymer based solar cells

Wengeler, L.; Schmitt, Markus; Peters, K.; Scharfer, Philip; Schabel, Wilhelm

doi:10.1016/j.cep.2012.03.004

Cited by 84 publications

(45 citation statements)

References 27 publications

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“…Technical details to each film preparation method (coating/printing) can be found elsewhere in literature. [3][4][5][6][7][8] Slot-Die Coating and Knife Coating R2R coating is a one-dimensional continuous appliance of ink in a stripe with a defined width. In knife coating (often also referred to as blade coating), the ink is supplied in front of the knife which is placed very close to the substrate (see Fig.…”

Section: Film Preparation Methodsmentioning

confidence: 99%

Roll‐to‐Roll fabrication of large area functional organic materials

Søndergaard

Hösel

Krebs

2012

J Polym Sci B Polym Phys

952

743

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With the prospect of extremely fast manufacture of very low cost devices, organic electronics prepared by thin film processing techniques that are compatible with roll-toroll (R2R) methods are presently receiving an increasing interest. Several technologies using organic thin films are at the point, where transfer from the laboratory to a more production-oriented environment is within reach. In this review, we aim at giving an overview of some of the R2R-compatible techniques that can be used in such a transfer, as well the current status of R2R application within some of the existing research fields such as organic photovoltaics, organic thin film transistors, light-emitting diodes, polymer electrolyte membrane fuel cells, and electrochromic devices.

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Section: Film Preparation Methodsmentioning

confidence: 99%

Roll‐to‐Roll fabrication of large area functional organic materials

Søndergaard

Hösel

Krebs

2012

J Polym Sci B Polym Phys

952

743

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“…13 shows that the absorbance of the former is lower than the latter. This may be attributed to the high roughness in spray-on films 10 (c.f. Fig.…”

Section: Perovskite Filmmentioning

confidence: 99%

“…[21][22][23][24][25][26][27][28][29][30][31][32][33] Due to the stochastic and random nature of droplet impact, spray-on films normally show a rough surface, 21 but the roughness can be reduced through a process optimization. 22,28 High roughness in spray-on organic SCs was reported to have negative effect on the light absorbance 10 and the device fill factor (FF), 34 although the results obtained for the organic SCs may not be necessarily applicable to crystalline perovskite SCs. By controlling the process parameters, such as substrate temperature, spray flow rate, number of spray passes, and solution concentration, 11,19,20,22,23,32,35 or applying dynamic forces on the substrate, such as ultrasonic vibration 2,5 or mechanical force (pressing), 22 the spraying process may become controllable to some extent.…”

Section: Introductionmentioning

confidence: 99%

“…Application of spin coating is limited to small areas in a batch process, not suitable for real-world applications. 10 Therefore, in parallel to attempts to further improve the power conversion efficiency (PCE) and stability of PVSCs, it is also essential to develop scalable techniques for future commercialization of the technology.…”

Section: Introductionmentioning

confidence: 99%

“…5,10,[11][12][13][14] Spray coating has been widely used for the fabrication of other emerging SCs, e.g., Refs. 15-20, but has not been adequately explored in the PVSC field, and only a few studies have employed it to fabricate the perovskite layer.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of spray coating for the fabrication of sequentially deposited planar perovskite solar cells

2017

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Abstract. We use facile coating techniques including spray coating and drop casting to fabricate methylammonium lead iodide perovskite solar cells through a two-step sequential deposition approach. In the first step, for the deposition of the lead iodide, spray coating substitutes for the commonly used lab-scale spin coating, while the operating parameters of the former process are optimized to achieve a fully covered and uniform film of lead iodide. In the second step, to deposit methylammonium iodide atop the lead iodide layer to form methylammonium lead iodide perovskite, dip-coating process is replaced by the touch-free drop casting and scalable pulsed-spray coating. It is found that the performance of the perovskite films and devices made by pulsed-spray coating and drop casting is similar to those prepared by dip coating, while the large-scale production capabilities of such methods beside the low material consumptions of drop casting prove their potential to replace dip coating in large-scale manufacturing of perovskite solar cells. The champion devices fabricated by spray-drop and spin-drop techniques demonstrated power conversion efficiencies of 6.92% and 9.48%, respectively. It is expected that device fabrication in a low-humidity environment using the optimized parameters and optimization of other layers will result in higher efficiencies. © The Authors. Published by SPIE under aCreative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Flexible Solar Cells

Galagan

2018

Roll‐to‐Roll Manufacturing

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Comparison of large scale coating techniques for organic and hybrid films in polymer based solar cells

Cited by 84 publications

References 27 publications

Roll‐to‐Roll fabrication of large area functional organic materials

Roll‐to‐Roll fabrication of large area functional organic materials

Optimization of spray coating for the fabrication of sequentially deposited planar perovskite solar cells

Flexible Solar Cells

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