Fabricating high performance conventional and inverted polymer solar cells by spray coating in air

Zhang, Yiwei; Scarratt, Nicholas W.; Wang, Tao; Lidzey, David G.

doi:10.1016/j.vacuum.2016.09.017

Cited by 13 publications

(5 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Encouragingly, the device spray coated from o ‐xylene/BPE achieved a J sc of 15.24 mA cm −2 , a V oc of 0.78 V, a FF of 65.1 %, and a PCE of 7.74 %, which is comparable to the spin‐coated device ( J sc =15.45 mA cm −2 , V oc =0.79 V, FF=66.0 %, PCE=8.06 %). The slightly decreased performance might result from the photo‐oxidation of PTB7‐Th in air . The PSCs prepared in this study were compatible with practical fabrication by utilizing the newly developed non‐halogenated solvent system and scalable deposition technique.…”

Section: Resultsmentioning

confidence: 87%

Efficient Polymer Solar Cells Spray‐Coated from Non‐Halogenated Solvents towards Practical Fabrication

et al. 2017

View full text Add to dashboard Cite

In the past decade, the power conversion efficiencies (PCEs) of polymer solar cells (PSCs) have been improved significantly. However, most efficient PSCs are based on halogenated solvents and the spin‐coating technique. To meet the requirements of practical fabrication, PSCs processed from non‐halogenated solvents using scalable deposition techniques are required. In this work, a non‐halogenated solvent system, o‐xylene/benzyl phenyl ether (BPE), was utilized to fabricate PSCs. The PSC obtained through spin coating from o‐xylene/BPE exhibited a high PCE comparable to a PCE spin‐coated from halogenated solvent. The nanostructures of the films processed from different solvents were investigated systematically to understand their performance evolution. Importantly, a spray‐coating technique compatible with the roll‐to‐roll process was employed to fabricate PSCs using an eco‐compatible ink formulation. The PSC spray coated from o‐xylene/BPE in ambient atmosphere gave rise to a PCE of 7.74 % comparable to that of devices spin‐coated from halogenated solvents, which demonstrated a significant potential for further practical fabrication.

show abstract

Section: Resultsmentioning

confidence: 87%

Efficient Polymer Solar Cells Spray‐Coated from Non‐Halogenated Solvents towards Practical Fabrication

et al. 2017

View full text Add to dashboard Cite

show abstract

“…As revealed by atomic force microscopy (AFM), this higher PL quenching is related to the changes in film microstructure induced upon film deposition using CSA. Our results are of importance in the OPVs field, as PCE11 and fullerenes are promising materials for organic solar cell fabrication [25][26][27]. and polyfullerenes and thus, under specific CSA casting conditions, to control the size of resulting alternating donor-acceptor domains.…”

Section: Introductionmentioning

confidence: 84%

Enhancing Photoluminescence Quenching in Donor–Acceptor PCE11:PPCBMB Films through the Optimization of Film Microstructure

et al. 2019

View full text Add to dashboard Cite

We show that a precise control of deposition speed during the fabrication of polyfullerenes and donor polymer films by convective self-assembly leads to an optimized film microstructure comprised of interconnected crystalline polymer domains comparable to molecular dimensions intercalated with similar polyfullerene domains. Moreover, in blended films, we have found a correlation between deposition speed, the resulting microstructure, and photoluminescence quenching. The latter appeared more intense for lower deposition speeds due to a more favorable structuring at the nanoscale of the two donor and acceptor systems in the resulting blend films.

show abstract

“…The method of mist formation differs between techniques; for example, in ultrasonic spray coating, the ultrasonic vibration of a piezo-ceramic tip is used to break up the ink, which is then directed to the substrate using a gas jet. Previous work on spray coating of OSCs has included electrospray, ultrasonic, − and airbrush spray coating . Both conventional and inverted devices and a range of PCBM- and NFA-based systems have previously been explored.…”

Section: Introductionmentioning

confidence: 99%

Air-Knife-Assisted Spray Coating of Organic Solar Cells

Spooner

Cassella

Smith

et al. 2023

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

The power conversion efficiencies (PCEs) of organic solar cells (OSCs) have risen dramatically since the introduction of the “Y-series” of non-fullerene acceptors. However, the demonstration of rapid scalable deposition techniques to deposit such systems is rare. Here, for the first time, we demonstrate the deposition of a Y-series-based system using ultrasonic spray coatinga technique with the potential for significantly faster deposition speeds than most traditional meniscus-based methods. Through the use of an air-knife to rapidly remove the casting solvent, we can overcome film reticulation, allowing the drying dynamics to be controlled without the use of solvent additives, heating the substrate, or heating the casting solution. The air-knife also facilitates the use of a non-halogenated, low-toxicity solvent, resulting in industrially relevant, spray-coated PM6:DTY6 devices with PCEs of up to 14.1%. We also highlight the obstacles for scalable coating of Y-series-based solar cells, in particular the influence of slower drying times on blend morphology and crystallinity. This work demonstrates the compatibility of ultrasonic spray coating, and use of an air-knife, with high-speed, roll-to-roll OSC manufacturing techniques.

show abstract

Fabricating high performance conventional and inverted polymer solar cells by spray coating in air

Cited by 13 publications

References 31 publications

Efficient Polymer Solar Cells Spray‐Coated from Non‐Halogenated Solvents towards Practical Fabrication

Efficient Polymer Solar Cells Spray‐Coated from Non‐Halogenated Solvents towards Practical Fabrication

Enhancing Photoluminescence Quenching in Donor–Acceptor PCE11:PPCBMB Films through the Optimization of Film Microstructure

Air-Knife-Assisted Spray Coating of Organic Solar Cells

Contact Info

Product

Resources

About