Enhancing intergranular conductivity in polycrystalline semiconductor assembly via polythiophene use

Gamon, Jacinthe; Robert, Carine; Mercier, Thierry Le; Barboux, P.; Thomas, Christophe M.; Giaume, Domitille

doi:10.1016/j.matchemphys.2019.05.013

Cited by 2 publications

(2 citation statements)

References 72 publications

(90 reference statements)

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“…The deposition of BiCuOS thin film requires first to stabilize the colloidal suspension, which was performed by using a catechol functionalized poly-3-hexylthiophene (P3HT-Cat). The synthesis method as well as the characterization of the molecule can be found elsewhere [51] using a polymerization degree of 25. This additive acts both as a colloidal stabilizer and as an intergranular transport enhancer.…”

Section: Chempluschemmentioning

confidence: 99%

Aqueous‐Based Low‐Temperature Synthesis and Thin‐Film Properties of Oxysulfide BiCuOS Nanoparticles

et al. 2020

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BiCuOS is a nontoxic p-type semiconductor that is a promising candidate for photoelectric applications. The formation of thin films with a good electronic transport at the grain boundaries, while avoiding thermal treatment detrimental to its chemical stability is a challenge. We have developed a chemical method for the direct synthesis of stable colloidal suspensions of BiCuOS nanoparticles from soluble precursors. These colloidal solutions were stabilized with a catechol functionalized poly-3-hexylthiophene that allows easy spin-coating deposition and favors electronic transport along the grain boundaries. Stacking of ZnO-BiCuOS layers were achieved, allowing preparation of n-p junctions. These act as rectifying diodes and are strongly photosensitive, with I ph /I dark = 85 corresponding to an enhancement of the photocurrent of more than two orders of magnitude compared to that of BiCuOS alone. This energyefficient and low-cost method is a further step in the development of new sulfide semiconductor devices.

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Section: Chempluschemmentioning

confidence: 99%

Aqueous‐Based Low‐Temperature Synthesis and Thin‐Film Properties of Oxysulfide BiCuOS Nanoparticles

et al. 2020

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“…However, there are only a few studies about catechol-functionalized conjugated polymers, where catechol groups were usually introduced as the end groups to improve the interaction between conjugated polymers and metal oxide substrates through the coordination of catechol groups with metal atoms. − To the best of our knowledge, very few reports are related to conjugated polymers containing pendant catechol groups via Suzuki coupling, being used as fluorescent sensing material and semiconducting material. , …”

Section: Introductionmentioning

confidence: 99%

Design, Synthesis, and Adhesion of Fluorescent Conjugated Polymers with Pendant Catechol Groups

Zhan

Chen

Zhang

et al. 2021

ACS Appl. Polym. Mater.

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Incorporating conjugated polymers with functionalities to provide good adhesion to solid substrates is favorable to prepare fluorescent solid materials for various applications. Inspired by the wide range and robust adhesion property of mussel, a series of conjugated polymers with the poly[p-(phenylene ethynylene)-alt-(thienylene ethynylene)] backbone and pendant catechol groups via Sonogashira coupling polymerization were designed and synthesized. The contents of catechol groups were precisely tuned through copolymerization, followed by selective deprotection. For comparison, similar polymers with pendant phenol groups were also synthesized. The conjugated polymers were demonstrated to have expected chemical structures via systematic characterizations. All the polymers had good solubility in common organic solvents and displayed strong fluorescence in solution. To evaluate the adhesion performance of different polymers, fluorescent silica microspheres were selected as the substrate for loading the abovementioned polymers via immersing the silica microspheres into solutions of conjugated polymers. To find out the loading amount, a calibration curve for each polymer was set up based on the linear relationship between the fluorescence intensities of the suspension of microspheres and the polymer concentrations. The loading amounts of catecholfunctionalized polymers were significantly higher than those of phenol-functionalized polymers; the highest loading amount is over 14-fold of the amount of the control polymer without any catechol/phenol functionality. By combining the abovementioned results with the preliminary mechanism investigation based on the solvent washing, it was concluded that catechol functionality and its content in the polymers greatly affected the adhesion performance. The multidentate interaction provided by catechol groups may enable the conjugated polymers to be widely used for fluorescence coating and staining of a variety of substrates.

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Enhancing intergranular conductivity in polycrystalline semiconductor assembly via polythiophene use

Cited by 2 publications

References 72 publications

Aqueous‐Based Low‐Temperature Synthesis and Thin‐Film Properties of Oxysulfide BiCuOS Nanoparticles

Aqueous‐Based Low‐Temperature Synthesis and Thin‐Film Properties of Oxysulfide BiCuOS Nanoparticles

Design, Synthesis, and Adhesion of Fluorescent Conjugated Polymers with Pendant Catechol Groups

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