Toward Sustainable Organic Semiconductors from a Broad Palette of Green Reactions

Abstract

New conjugated materials, based on the triphenylamine‐thiophene moiety and integrating azomethine bonds with a dibenzofuran unit or a cyanovinyl bond with a phenylthiophene or bithiophene unit, have been synthesized by using a wide range of green reactions such as direct heteroarylation coupling reactions, Knoevenagel and Schiff‐base condensations and Stille cross‐coupling reactions using ionic‐liquid‐supported thiophenylstannane. The electronic properties of the new molecules were analyzed by UV/Vis spectroscopy and cyclic voltammetry. The potential use of the molecules as donor materials for photovoltaic conversion were evaluated in simple bilayer solar cells using C60 as the acceptor material.

Triphenylamine and some of its derivatives as versatile building blocks for organic electronic applications

“…The PV potential of DAD‐9 was evaluated in bilayer OSCs with C 60 leading to a 1.18% efficiency. Following a similar approach, Frère and co‐workers described the Schiff base DAD‐10 with a central electron‐deficient benzodifurane core and corresponding bilayer OSCs with C 60 reaching a maximum PCE of 1.73% …”

“…Following a similar approach, Frère and co-workers described the Schiff base DAD-10 with a central electron-deficient benzodifurane core and corresponding bilayer OSCs with C 60 reaching a maximum PCE of 1.73%. 90 wileyonlinelibrary.com/journal/pi…”

Tin‐Catalyzed Synthesis of 5‐Substituted 1H‐Tetrazoles from Nitriles: Homogeneous and Heterogeneous Procedures

“…[14] Most of these methodologies are based on partition methods starting from usual triorganotin reagents, [15] but some others involve highly polar organotin reagents [16] or media [17] as well as perfluorinated ones which highly improve the elimination of organotin by-products. [18] The use of a catalytic amount of organotin reagents [19] or of monoorganotin reagents [20] have also been exploited, but the most efficient approaches to avoid contamination by organotin by-products remain the grafting of the organotin reagent on an appropriate substrate which can be a phosphonium salt, [21] an 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 ionic liquid, [22] an inorganic matrix, [23] or an organic polymer. [14a-d] While the above approaches have demonstrated their efficiency in numerous reactions, their use for the synthesis of 5-substituted 1H-tetrazoles has been overlooked.…”

Introductory Chapter: Green Electronics Starting from Nanotechnologies and Organic Semiconductors

“…On the other hand, the traditional electronics industries can redistribute their objectives to comply the green electronics targets: low power consumption, low voltage-low size, low quantities of raw materials and resources-suitable to nanotechnologies or nanoelectronics, biomaterials in electronics, green organic semiconductors [4], long life products, electronics applied in ecology, solar cells development, green energy generators, green energy accumulators, nanoscale integrated electronics, hysteretic materials with memory property for smart electronics [5], integrated sensors and biosensors [6], environmental applications, sensors network, bio-medical-eco-electronics [7]. For instance, a recent ecological solution for integrated electronic biosensors follows a simultaneously 22 blood tests, concentrating 22 separate devices in one, using low quantities of blood samples, due to the revolutionary technology of dry biochemistry with minimal wastes, [8].…”