Surface modification of c-TiO2 via different phenyl boronic acid SAMs for improved performance of inverted organic solar cells

Kurukavak, Çisem Kırbıyık; Yılmaz, Tuğbahan; Büyükbekar, Alihan; Kuş, Mahmut

doi:10.1016/j.mssp.2021.106120

Cited by 4 publications

(2 citation statements)

References 37 publications

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“…The NO 2 ‐PBA SAM modified device achieved a much higher PCE than the untreated device. This was due to better Ohmic contact and better energy level alignment at the interface, leading to high‐shunt resistance, low‐series resistance, and improved charge collection 91 . Chen et al used methoxyphenylphosphonic acid (MPPA) to reduce surface defect and WF of ZnO.…”

Section: Modification Of Interface Layers By Sams For Pscsmentioning

confidence: 99%

Self‐assembled monolayers for interface engineering in polymer solar cells

Yang³

et al. 2022

Journal of Polymer Science

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Polymer solar cell (PSC) has been developed vastly in the past decade due to the advantages of low cost, lightweight, mechanical flexibility, versatility of chemical design and synthesis, semitransparency, and solution processing. The performance and lifetime of PSCs are highly dependent on the properties of both active materials and their interfaces. The combination of the versatility of organic chemistry and the multitude of well-understood ligand-metal interactions allows self-assembled monolayers (SAMs) of organic molecules to direct control over the electronic and chemical properties at the inorganic-organic interfaces. Thus, SAMs are an attractive pathway to reconcile interfaces with tunable interface properties in PSCs. Hence, this review describes the application of SAMs in PSCs at different interfaces. First, SAMs as alternatives of traditional transporting materials to reduce the barrier at indium tin oxide (ITO)/ active layer interface due to the ability of tuning work function of ITO electrode are discussed. Second, the modifications of metal oxide by SAMs to control the electrical contacts at transporting layer/active layer interface are described. Third, tailoring the properties of the donor/acceptor interface by SAMs to improve the performance of PSCs are summarized. Finally, perspectives and challenges are pointed out for developing highly stable and highperformance PSCs by applying SAMs.

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Section: Modification Of Interface Layers By Sams For Pscsmentioning

confidence: 99%

Self‐assembled monolayers for interface engineering in polymer solar cells

Yang³

et al. 2022

Journal of Polymer Science

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“…Boron doping of TiO 2 has been shown to lead to a higher photocatalytic activity compared to that of bare TiO 2 . , A computational study from Raghunath and Lin explored various bidentate and monodentate attachments of B(OH) 3 to a clean TiO 2 anatase(101) surface. The functionalized boronic acids, such as phenylboronic derivatives, have been shown to improve the properties of organic solar cells. − They appear to enhance the electronic contact between the TiO 2 layer and the conductive organic layer in solar cells. Boronic acids overall are quite attractive chemical modifiers because they tend to have low toxicity, are inexpensive, and are insoluble under aqueous environments, all of which are beneficial characteristics for solar cell applications.…”

Section: Introductionmentioning

confidence: 99%

Attachment Chemistry of 4-Fluorophenylboronic Acid on TiO₂ and Al₂O₃ Nanoparticles

et al. 2022

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Surface modification of nanoparticulate TiO 2 and Al 2 O 3 materials with 4-fluorophenylboronic acid is investigated in order to both evaluate the novel surface modification schemes and develop spectroscopic labels for surface characterization. The chemistry of the modification is followed on all these surfaces using X-ray photoelectron spectroscopy, multinuclear ( 11 B, 19 F, and 13 C) solid-state and solution NMR, and infrared spectroscopy to determine the binding modes of this compound using boron and fluorine as probe atoms. Density functional theory model calculations are utilized to visualize predicted surface species and to interpret the results of spectroscopic measurements. A comparison is made among TiO 2 rutile, TiO 2 anatase, and γ-Al 2 O 3 . On all three materials, the modification proceeds via the boronic functional groups, with metal oxide-controlled surface chemistry. The bonding configuration depends on the material and is dominated by a monodentate species for titania and by bidentate species for alumina. The surface structures determined to form on all the oxide semiconductors investigated suggest that sensitization or monolayer doping approaches with a well-defined chemical interaction via a boronic functionality can be developed.

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Improving the performance parameters of organic field-effect transistors via alkyl chain length of boronic acid self-assembled monolayers

Yılmaz

2024

J Mater Sci: Mater Electron

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Interface modification is a promising technique for enhancing electrical parameters of Organic Field Effect Transistor (OFETs). In OFETs, self-assembled monolayer molecules are widely used for treatment dielectric/semiconductor interface layer. Modification of dielectric/semiconductor layer with SAM molecules ensures a variety of potential applications. Boronic acids with four different alkyl chain lengths (Cn-BA; n = 8, 10, 12, 14) molecules were used in this study to treat the Al2O3 dielectric surface in dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT) based OFETs. Treated with SAMs improve the mobility of Al2O3 surfaces for linear and saturation regime and threshold voltages shifted from positive direction. The morphological and electrical characterizations were performed for fabricated OFET. The results show that alkyl-boronic acids SAM molecules open a new perspective for further optoelectronic applications due to its application for oxide surfaces and controllability.

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Surface modification of c-TiO2 via different phenyl boronic acid SAMs for improved performance of inverted organic solar cells

Cited by 4 publications

References 37 publications

Self‐assembled monolayers for interface engineering in polymer solar cells

Self‐assembled monolayers for interface engineering in polymer solar cells

Attachment Chemistry of 4-Fluorophenylboronic Acid on TiO₂ and Al₂O₃ Nanoparticles

Improving the performance parameters of organic field-effect transistors via alkyl chain length of boronic acid self-assembled monolayers

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Surface modification of c-TiO2 via different phenyl boronic acid SAMs for improved performance of inverted organic solar cells

Cited by 4 publications

References 37 publications

Self‐assembled monolayers for interface engineering in polymer solar cells

Self‐assembled monolayers for interface engineering in polymer solar cells

Attachment Chemistry of 4-Fluorophenylboronic Acid on TiO2 and Al2O3 Nanoparticles

Improving the performance parameters of organic field-effect transistors via alkyl chain length of boronic acid self-assembled monolayers

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Attachment Chemistry of 4-Fluorophenylboronic Acid on TiO₂ and Al₂O₃ Nanoparticles