Improvement of efficiency of polymer solar cell by incorporation of the planar shaped monomer in low band gap polymer

Shin, Woong; Jo, Mi Young; You, Dae Sung; Jeong, Yeon Sook; Yoon, Do Y.; Kang, Jae‐Wook; Cho, Jeong Ho; Lee, Gun Dae; Hong, Seong-Soo; Kim, Joo Hyun

doi:10.1016/j.synthmet.2012.02.004

Cited by 22 publications

(7 citation statements)

References 22 publications

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“…The weak signals around 2930 and 1090 cm –1 could be attributed to C–H and C–O stretching mode, which could correspond to the structure of −CH 2 – and a minor amount of unreacted −CH 2 OCH 3 remained in the polymer networks. In addition, the signals at 1348, 1377, 1567, and 1577 cm –1 are characteristic for the CN and N–S stretching modes of the benzothiadiazole unit …”

Section: Resultsmentioning

confidence: 99%

Photocatalytic Selective Bromination of Electron-Rich Aromatic Compounds Using Microporous Organic Polymers with Visible Light

Wang

et al. 2016

ACS Catal.

144

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Pure organic, heterogeneous, metal-free, and visible light-active photocatalysts offer a more sustainable and environmentally friendly alternative to traditional metal-based catalysts. Here we report a series of microporous organic polymers containing photoactive conjugated organic semiconductor units as heterogeneous photocatalysts for a visible-light-promoted, highly selective bromination reaction of electron-rich aromatic compounds using HBr as a bromine source and molecular oxygen as a clean oxidant. Via a simple Friedel–Crafts alkylation reaction, the microporous organic polymers were obtained by cross-linking of organic semiconductor compounds with defined valence and conduction band positions. The utilization of the simply prepared porous polymer-based photocatalytic systems opens new opportunities toward a sustainable and efficient material design for catalysis.

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Section: Resultsmentioning

confidence: 99%

Photocatalytic Selective Bromination of Electron-Rich Aromatic Compounds Using Microporous Organic Polymers with Visible Light

Wang

et al. 2016

ACS Catal.

144

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“…Peaks corresponding to 1347, 1390, and 1567 cm −1 , which are characteristic for CN and N−S stretching modes in the benzothiadiazole moiety, were observed. 50 The strong and wide absorption signals at 1095 cm −1 can be assigned to a Si−O−Si antisymmetric stretching vibration 51 (Figure 3b). Similar conclusions could be drawn from the corresponding solid-state 13 C cross-polarization magic-angle-spinning (CP-MAS) NMR spectrum (Figure S5).…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Aerobic Photobiocatalysis Enabled by Combining Core–Shell Nanophotoreactors and Native Enzymes

et al. 2022

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Biocatalysis has become a powerful tool in synthetic chemistry, where enzymes are used to produce highly selective products under mild conditions. Using photocatalytically regenerated cofactors in synergistic combination with enzymes in a cascade fashion offers an efficient synthetic route to produce specific compounds. However, the combination of enzymes and photocatalysts has been limited due to the rapid degradation of the biomaterials by photogenerated reactive oxygen species, which denature and deactivate the enzymatic material. Here, we design core–shell structured porous nano-photoreactors for highly stable and recyclable photobiocatalysis under aerobic conditions. The enzymatic cofactor NAD + from NADH can be efficiently regenerated by the photoactive organosilica core, while photogenerated active oxygen species are trapped and deactivated through the non-photoactive shell, protecting the enzymatic material. The versatility of these photocatalytic core–shell nanoreactors was demonstrated in tandem with two different enzymatic systems, glycerol dehydrogenase and glucose 1-dehydrogenase, where long-term enzyme stability was observed for the core–shell photocatalytic system.

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“…The Suzuki cross-coupling of compound 7 with arylboronic acids or their cyclic esters in the presence of Pd(PPh 3 ) 4 and alkali metal carbonates led to bis-adducts in moderate to high yields (Scheme 4) [108,109]. Compound 12 with two activated boronic ester groups has been prepared from 7 and bis(pinacolato)diboron 13 in the presence of PdCl 2 (PPh 3 ) 2 and potassium acetate in dioxane, and further used in the synthesis of conjugated polymers for high-performance ambipolar organic thin-film transistors [110,111].…”

Section: Synthesismentioning

confidence: 99%

Breathing Some New Life into an Old Topic: Chalcogen-Nitrogen π-Heterocycles as Electron Acceptors

et al. 2013

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Recent progress in the design, synthesis and characterization of chalcogennitrogen π-heterocycles, mostly 1,2,5-chalcogenadiazoles (chalcogen: S, Se and Te) and their fused derivatives, possessing positive electron affinity is discussed together with their use in preparation of charge-transfer complexes and radical-anion salts-candidate building blocks of molecule-based electrical and magnetic functional materials.

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Improvement of efficiency of polymer solar cell by incorporation of the planar shaped monomer in low band gap polymer

Cited by 22 publications

References 22 publications

Photocatalytic Selective Bromination of Electron-Rich Aromatic Compounds Using Microporous Organic Polymers with Visible Light

Photocatalytic Selective Bromination of Electron-Rich Aromatic Compounds Using Microporous Organic Polymers with Visible Light

Aerobic Photobiocatalysis Enabled by Combining Core–Shell Nanophotoreactors and Native Enzymes

Breathing Some New Life into an Old Topic: Chalcogen-Nitrogen π-Heterocycles as Electron Acceptors

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