Polymer solar cells spray coated with non-halogenated solvents

Cai, Chaosheng; Zhang, Yangdong; Song, Rongying; Peng, Zuosheng; Xia, Lianpeng; Wu, Mingqing; Xiong, Kang; Wang, Biao; Lin, Yuanbao; Xu, Xiaofeng; Liang, Quanbing; Wu, Hongbin; Wang, Ergang; Hou, Lintao

doi:10.1016/j.solmat.2016.11.027

Cited by 26 publications

(20 citation statements)

References 43 publications

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“…It can be seen that the device with HIL shows a higher charge carrier density than that of the device without HIL (Figure 4C), agreeing well with the device J SC difference. The charge extraction time ( τ ex ) can be extracted by exponentially fitting the TPC curves 1,29 . The HIL‐modified laminating device shows a faster τ ex of 0.49 µs than 0.85 µs of the conventional laminating device without HIL.…”

Section: Resultsmentioning

confidence: 99%

Effect of anode interfacial modification on the performance of laminated flexible ITO‐free organic solar cells

Lin

Guan

Cai

et al. 2021

Energy Science & Engineering

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Lamination technique is one of the most promising and effective approaches to produce flexible organic solar cells (OSCs), with the combination of high throughput and simultaneous encapsulation. In this study, flexible ITO‐free OSCs were successfully fabricated by lamination technique under the optimized temperature and pressure. It is found that the introduction of hole interface layer of PEDOT:MoO3 helps to improve both the film hydrophobicity and the carrier extraction. A high efficiency improvement of about 30% is obtained in the interface‐modified laminating flexible ITO‐free OSCs compared to the conventional laminated device. This work illustrates that anode interface engineering has a significant effect on the improvement of performance of roll‐to‐roll laminated and self‐encapsulated OSCs.

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Section: Resultsmentioning

confidence: 99%

Effect of anode interfacial modification on the performance of laminated flexible ITO‐free organic solar cells

Lin

Guan

Cai

et al. 2021

Energy Science & Engineering

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“…The 2D inkjet printing on the other hand, requires a mixing of 5–8 solvents in order to form the ink solution, which is a major obstacle in its successful commercialization. A PCE of 4.1% has been reported to be the highest for an area of 25 mm 2 via screen printing, whereas an all inkjet printed device having an area of >1 cm 2 has been reported to demonstrate a PCE of 4.1% . Similarly, as the brush coating process requires substrate heating while ink deposition, its ability to ensure high speed fabrication, better thickness control and ultimately the relatively better performance is sometimes attributed to the heat treatment while coating due to the reasons mentioned earlier.…”

Section: Methods For Upscale Fabricationmentioning

confidence: 99%

Large‐Area Organic Solar Cells: Material Requirements, Modular Designs, and Printing Methods

et al. 2018

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The printing of large‐area organic solar cells (OSCs) has become a frontier for organic electronics and is also regarded as a critical step in their industrial applications. With the rapid progress in the field of OSCs, the highest power conversion efficiency (PCE) for small‐area devices is approaching 15%, whereas the PCE for large‐area devices has also surpassed 10% in a single cell with an area of ≈1 cm2. Here, the progress of this fast developing area is reviewed, mainly focusing on: 1) material requirements (materials that are able to form efficient thick active layer films for large‐area printing); 2) modular designs (effective designs that can suppress electrical, geometric, optical, and additional losses, leading to a reduction in the PCE of the devices, as a consequence of substrate area expansion); and 3) printing methods (various scalable fabrication techniques that are employed for large‐area fabrication, including knife coating, slot‐die coating, screen printing, inkjet printing, gravure printing, flexographic printing, pad printing, and brush coating). By combining thick‐film material systems with efficient modular designs exhibiting low‐efficiency losses and employing the right printing methods, the fabrication of large‐area OSCs will be successfully realized in the near future.

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“…Spray-coating has been explored as a scalable PAL deposition technique to produce large area OPV cells [70][71][72][73][74][75][76] and the corresponding mechanisms of film formation have been studied in detail. [74] Notably, Park et al [70] created cells with size of 12.5 cm 2 and PCE of 1.68% from spray-coated P3HT:PCBM.…”

Section: Upscaling Of Indium-tin-oxide-based Single Cellsmentioning

confidence: 99%

Progress in Upscaling Organic Photovoltaic Devices

Bernardo

Lopes

Lidzey

et al. 2021

Advanced Energy Materials

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Organic photovoltaic (OPV) cells have recently undergone a rapid increase in power conversion efficiency (PCE) under AM1.5G conditions, as certified by the National Renewable Energy Laboratory (NREL), which have jumped from 11.5% in October 2017 to 18.2% in December 2020. However, the NREL certified PCE of large area OPV modules is still lagging far behind (11.7% in July 2020). Additionally, there has been a rapidly growing interest in the use of OPVs for dim light indoor applications, with reported PCE of some large area (≥1 cm2) devices, under 1000 lux, well above 20%. The transition of OPV from the lab to the market requires the development of effective manufacturing processes that can scale‐up laboratory‐scale devices into large area devices, without sacrificing performance and simultaneously minimizing associated manufacturing costs. This review article focuses on four important challenges that OPV technology has to face to achieve a reliable lab‐to‐fab transfer, namely: i) The upscaling of indium‐tin‐oxide (ITO)‐based single cells and the interconnection of single cells into large area modules; ii) the development of alternatives to vacuum processing; iii) the development of alternatives to ITO‐based substrates; and iv) strategies for improving the lifetime of large area OPV devices.

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Polymer solar cells spray coated with non-halogenated solvents

Cited by 26 publications

References 43 publications

Effect of anode interfacial modification on the performance of laminated flexible ITO‐free organic solar cells

Effect of anode interfacial modification on the performance of laminated flexible ITO‐free organic solar cells

Large‐Area Organic Solar Cells: Material Requirements, Modular Designs, and Printing Methods

Progress in Upscaling Organic Photovoltaic Devices

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