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1 article(s) from Fell, Valentin H K

Introducing a new 7-ring fused diindenone-dithieno[3,2-b:2',3'-d]thiophene unit as a promising component for organic semiconductor materials

Valentin H. K. Fell,
Joseph Cameron,
Alexander L. Kanibolotsky,
Eman J. Hussien and
Peter J. Skabara

Beilstein J. Org. Chem. 2022, 18, 944–955, doi:10.3762/bjoc.18.94

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Graphical Abstract

Figure 1: EtH-T-DI-DTT (1).

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Figure 2: Previously published, ‘bent’ diindenodithienothiophenes [16,24,25].

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Figure 3: With crystalline films of 2,7-dioctyl[1]benzothieno[3,2-b][1]-benzothiophene (8), obtained by off-c...

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Figure 4: ITIC, a system with fused thiophenes, in combination with donor polymer 11, also featuring a fused ...

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Figure 5: The fluorinated derivative of ITIC, IT-4F, achieved, with donor polymer 13, PCEs in OPVs up to 17% [8]....

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Figure 6: The non-fullerene acceptor Y6 (14) [30], in combination with donor polymer 15, both fused thiophene sys...

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Figure 7: With a three component system of PBQx-TF, eC9-2Cl, and F-BTA3, a PCE of 19% was achieved [32].

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Scheme 1: Synthetic route from thiophene to 2,6-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)dithieno[3,2-b...

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Scheme 2: Ring closure of key intermediate 27 to achieve 29: a) Methyl 5-bromo-2-iodobenzoate, Aliquat 336®, ...

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Scheme 3: Synthesis of thiophene derivative 32: a) Magnesium, 2-ethylhexylbromide, spatula tip iodine, anhydr...

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Scheme 4: Synthesis of the soluble target structure EtH-T-DI-DTT (1): a) 32, Pd(PPh₃)₄, K₂CO₃, THF, H₂O, 70 °...

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Figure 8: Normalised UV–vis spectra of EtH-T-DI-DTT in 10⁻⁵ M CH₂Cl₂ solution and in the solid state.

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Figure 9: Cyclic voltammogram for EtH-T-DI-DTT (1), at a scan rate of 0.1 V s⁻¹ using a Pt disk as the workin...

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Figure 10: The structure of EtH-T-DI-DTT optimised on the B3LYP/6-311g(d,p) level of theory, viewed from the (...

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Published 01 Aug 2022

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