Simon Rondeau-Gagné

Simon Rondeau-Gagné
University of Windsor · Department of Chemistry and Biochemistry

PhD

About

88
Publications
9,592
Reads
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3,464
Citations
Introduction
Our group at the University of Windsor focuses its research on the development and synthesis of new organic materials for next generation of electronic devices. A special emphasis is put, throughout our research, on the development of new materials with improved properties such as stretchability and self-healing. Our research contribute to the rise of more efficient and robust technologies for multiple applications in electronics and nanotechnology
Additional affiliations
September 2014 - August 2016
Stanford University
Position
  • PostDoc Position
May 2010 - August 2014
Laval University
Position
  • PhD Student
May 2008 - May 2010
Laval University
Position
  • Master's Student

Publications

Publications (88)
Article
Thin-film field-effect transistors are essential elements of stretchable electronic devices for wearable electronics. All of the materials and components of such transistors need to be stretchable and mechanically robust. Although there has been recent progress towards stretchable conductors, the realization of stretchable semiconductors has focuse...
Article
Soluble organic nanorods were prepared from phenylacetylene macrocycles using the topochemical polymerization of butadiyne moieties placed both inside and outside the macrocycles' skeleton. Macrocycles containing amide groups were self-assembled in a columnar fashion through the formation of an organogel in ethyl acetate. Upon irradiation with UV l...
Article
An array of highly sensitive pressure sensors entirely made of biodegradable materials is presented, designed as a single-use flexible patch for application in cardiovascular monitoring. The high sensitivity in combination with fast response time is unprecedented when compared to recent reports on biodegradable pressure sensors (sensitivity three o...
Article
Full-text available
A layered graphitic material was prepared from an alkyne-containing, reactive molecular precursor at low temperature without catalyst. The resulting nanomaterial is made of stacks of a few partially graphitized nanosheets and is soluble in common organic solvents in which it exhibits green fluorescence.
Article
Flexible printed sensors are essential components for modern Internet of Things applications. They may twist and bend to fit any shape or surface. New potential applications emerge as these sensors’ sophistication and sensing efficiency improve. In this study, a printed sensor is prepared from indium oxide nanoparticles (In2O3 NPs)‐based nanocompos...
Article
Incorporation of directing amide groups has been shown to facilitate the topochemical polymerization of 1,3-butadiyne (diacetylene) groups in noncrystalline phases such as gels, amorphous solids, and liquid crystals. It remains challenging to polymerize 1,3-butadiyne-containing alkylthiolate ligands within their self-assembled monolayers on gold na...
Article
Full-text available
Glioblastoma is one of the most aggressive types of cancer with success of therapy being hampered by the existence of treatment resistant populations of stem-like Tumour Initiating Cells (TICs) and poor blood–brain barrier drug penetration. Therapies capable of effectively targeting the TIC population are in high demand. Here, we synthesize spheric...
Article
Intermolecular interactions between tetraazaporphyrin (TAP) macrocycles are less dominated by π-π stacking interactions than interactions between their larger phthalocyanine derivatives. Consequently, the self-organization and -assembly of TAPs is more widely altered by changes to the type of complexed metal ion and substitution pattern. Presented...
Article
Full-text available
Polyethylene is amongst the most used polymers, finding a plethora of applications in our lives owing to its high impact resistance, non-corrosive nature, light weight, cost effectiveness, and easy processing into various shapes from different sizes. Despite these outstanding features, the commodity polymer has been underexplored in the field of or...
Article
Fluorination is a common strategy for improving the electronic properties of π-conjugated materials. This has shown to be important for applications in organic electronics, especially for the fabrication of organic field-effect transistors or organic photovoltaics. Despite being an efficient tool to generate high-performing materials, fluorination...
Article
Full-text available
Cannabis has been integral to Eurasian civilization for millennia, but a century of prohibition has limited investigation. With spreading legalization, science is pivoting to study the pharmacopeia of the cannabinoids, and a thorough understanding of their biosynthesis is required to engineer strains with specific cannabinoid profiles. This review...
Article
We show here that non-network metallopolymers can possess intrinsic microporosity stemming from contortion introduced by metallocene building blocks. Metallopolymers constructed from ferrocenyl building blocks linked by phenyldiacetylene bridges are synthesized and possess BET surface areas up to 400 m2 g-1. As solubility imparted by pendant groups...
Article
Despite having favorable optoelectronic and thermomechanical properties, the wide application of semiconducting polymers still suffers from limitations, particularly with regards to their processing in solution which necessitates toxic chlorinated solvents due to their intrinsic low solubility in common organic solvents. This work presents a novel...
Preprint
Full-text available
Glioblastoma is one of the most aggressive types of cancer with median survival of only 15 months. Successful therapy is hampered by the existence of treatment resistant populations of stem-like tumour initiating cells (TICs) and poor blood-brain barrier drug penetration. Therapies capable of effectively targeting the TIC population are in high dem...
Preprint
Full-text available
Glioblastoma is one of the most aggressive types of cancer with median survival of only 15 months. Successful therapy is hampered by the existence of treatment resistant populations of stem-like tumour initiating cells (TICs) and poor blood-brain barrier drug penetration. Therapies capable of effectively targeting the TIC population are in high dem...
Preprint
Full-text available
We show here that non-network metallopolymers can possess intrinsic microporosity stemming from contortion introduced by metallocene building blocks. Metallopolymers constructed from ferrocenyl building blocks linked by phenyldiacetylene bridges are synthesized and possess BET surface areas up to 400 m2/g. As solubility imparted by pendant groups r...
Article
Dendronized polymers are a particularly interesting platform for the preparation of advanced semiconductors given their high degree of functionalization, monodispersity, and bulkiness. Despite advantageous features, the incorporation of dendritic moieties in semiconducting polymers is still relatively underexplored, and the impact on the optoelectr...
Article
Full-text available
Organic field-effect transistors (OFETs) are at the forefront of next generation electronics. This class of devices is particularly promising due to the possibility of fabrication on mechanically compliant and conformable substrates, and potential manufacturing at large scale through solution deposition techniques. However, their integration in cir...
Article
Polymer semiconductors have shown distinct promise for the development of human-integrated electronics, owing to their solution processability and mechanical softness. However, numerous functional properties required for this application domain face synthetic challenges to being conveyed onto conjugated polymers and thus combined with efficient cha...
Article
Polymerization of self-assembled supramolecular structures considerably increases their often limiting thermal and chemical stability, which widens their potential application in commercial products. Particularly interesting for self-assembled materials is the topochemical polymerization of diacetylenes to polydiacetylenes because it can be initiat...
Article
Full-text available
Donor–acceptor (D–A) type semiconducting polymers have shown great potential for the application of deformable and stretchable electronics in recent decades. However, due to their heterogeneous structure with rigid backbones and long solubilizing side chains, the fundamental understanding of their molecular picture upon mechanical deformation still...
Article
In this paper, a novel self‐healable and stretchable microfluidics system for next generation wearable lab‐on‐a‐chip is presented. An imine‐based precursor with various metal sources (Co(II), Fe(II), and Zn(II)) is used for the development of an intrinsically autonomous self‐healing microfluidic device. Microfluidics fabrication is performed on the...
Article
Full-text available
Intrinsic mechanical properties of sub-100 nm thin films are markedly difficult to obtain, yet an ever-growing necessity for emerging fields such as soft organic electronics. To complicate matters, the interfacial contribution plays a major role in such thin films and is often unexplored despite supporting substrates being a main component in curre...
Article
Flexible pressure sensors with self-healing abilities for wearable electronics are being developed, but generally either lack autonomous self-healing properties or require sophisticated material processing methods. To address this challenge, we...
Article
Full-text available
The synthesis of 6,11-bis-cyano N-H functionalized perylene diimide is reported. Electron withdrawing cyano groups were installed to counter the electron donating cyclic amine moiety with retention of functionality. Solution-processed, air-stable...
Article
The synthesis and characterization of six new N-annulated perylene diimide (N-PDI) molecules consisting of different alkyl-based heteroatom and waxy infused sidechains is reported. Amino, urea, quaternary methyl ammonium, iminopyridine, hexadecyl...
Article
In this article, a new series of conjugated polymers based on a low-cost, easily accessible vat dye called Vat orange 1 or 2,9-dibromo-dibenzo[b,def]chrysene-7,14-dione, have been prepared. This compound was made...
Article
Imide-functionalized organic monomers and polymers are attractive in organic optoelectronic devices due to the strong electron-withdrawing ability of the carbonyl units. We report the synthesis of diselenophene−pyrrole-2,5-dione and diselenophene−phthalimide based homopolymers P1−P2 and their corresponding copolymers P3−P4. The effect of the chemic...
Article
Organic π-conjugated polymers are an important class of semiconducting materials with favourable optoelectronic and thermomechanical properties, making them great candidates for the fabrication of next generation electronics. These materials can be manufactured at large-scale through solution deposition techniques and many parameters affecting thei...
Article
Full-text available
Mechanical failure of π‐conjugated polymer thin films is unavoidable under cyclic loading conditions, due to intrinsic defects and poor resistance to crack propagation. Here, the first tear‐resistant and room‐temperature self‐healable semiconducting composite is presented, consisting of conjugated polymers and butyl rubber elastomers. This new comp...
Article
Full-text available
Semiconducting donor–acceptor (D–A) polymers have attracted considerable attention toward the application of organic electronic and optoelectronic devices. However, a rational design rule for making semiconducting polymers with desired thermal and mechanical properties is currently lacking, which greatly limits the development of new polymers for a...
Article
A persistent challenge in the field of organic electronics is balancing the optoelectronic properties of π-conjugated semiconducting polymers with their thermomechanical properties. A popular and effective approach to resolve this dichotomy is to blend π-conjugated polymers with amorphous, stretchy elastomers. In this work, poly(diketopyrrolopyrrol...
Article
The glass transition temperature (Tg) of conjugated polymers is a crucial physical parameter that governs their mechanical and electrical properties for applications from sensor technology to skin-like electronics. Despite some well-developed methods that exist for detecting Tg of conjugated polymers, there is still a need for the combination of ad...
Article
A rational side-chain engineering was performed on a semicrystalline semiconducting conjugated polymer based on diketopyrrolopyrrole (DPP) to incorporate metal-chelating moieties without disruption of the π-conjugation. Specifically, a benzimidazole pyridine-based pincer ligand (MeBZIMPY), known to easily coordinate with M(II) metal centers, was in...
Article
Short oligomeric species end-capped with imine-based ligands can generate intrinsic autonomous self-healable soft polymer upon metal coordination, allowing for the preparation of materials that can be easily fine-tuned in terms of mechanical properties and robustness. To develop a rational understanding of the self-healing mechanism on this system,...
Article
Polymerization of self-assembled supramolecular structures considerably increases their often limiting thermal and chemical stability, which widens their potential application in commercial products. Particularly interesting for self-assembled materials is the topochemical polymerization of diacetylenes to polydiacetylenes because it can be initiat...
Article
A nanoprecipitation procedure was utilized to prepare novel diketopyrrolopyrrole-based semiconducting polymer nanoparticles (SPNs) with hyaluronic acid (HA) and polysorbate 80. The nanoprecipitation led to the formation of spherical nanoparticles with average diameters ranging from 100 to 200 nm, and a careful control over the structure of the pare...
Chapter
Objects and materials that can regenerate themselves spontaneously and autonomously, and restore their initial properties after suffering from damages (strain, puncture, cracks, etc.) seem to be coming directly out of a Sci-Fi movie. With the recent progress in soft materials, polymer chemistry, and materials chemistry, selfhealing materials are be...
Article
Thermomechanical properties of polymers highly depend on their glass transition temperature (T g). Differential scanning calorimetry (DSC) is commonly used to measure T g of polymers. However, many conjugated polymers (CPs), especially donor–acceptor CPs (D–A CPs), do not show a clear glass transition when measured by conventional DSC using simple...
Article
Polydiacetylenes are well established 1-dimensional organic semiconductors that have been generated by photochemical and thermal polymerization of diacetylenes in single crystals, gel phases, thin films, and membranes. Their formation in mesophases, such as liquid crystals, has been surprisingly little studied although higher ordered mesophases sho...
Article
In this work, a facile and simple yet effective method to generate intrinsic autonomous self-healing polymers was developed, leading to new materials that can be easily fine-tuned both mechanically and chemically. The new materials were designed to incorporate two dynamic and reversible types of chemical bonds, namely dynamic imine and metal-coordi...
Article
A backbone engineering was performed on highly rigid semiconducting polymers to include diketopyrropyrrole (DPP) units combined with pyrazine-containing moieties. These new moieties were shown to improve backbone planarity through a conformational locking effect between nitrogen and sulfur atoms. The new polymers, characterized by various technique...
Article
A new strategy for influencing the solid-state morphology of conjugated polymers was developed through physical blending with a low molecular weight branched polyethylene. This non-toxic and low boiling point additive was blended with a high charge mobility DPP-based conjugated polymer and a detailed investigation of the new blended materials was p...
Article
Organic semiconducting donor–acceptor polymers are promising candidates for stretchable electronics owing to their mechanical compliance. However, the effect of the electron‐donating thiophene group on the thermomechanical properties of conjugated polymers has not been carefully studied. Here, thin‐film mechanical properties are investigated for di...
Article
This paper focuses on the fabrication, characterization and comparative study of flexible pressure sensors, prepared from structured polydimethylsiloxane (PDMS) as flexible dielectric. In specific, four different patterning methods on PDMS dielectric surface were investigated including inverse mold, replica mold, photolithographic and non-shaped mi...
Article
Organic bulk heterojunction solar cells are promising candidates as future photovoltaic technologies for large‐scale and low‐cost energy production. It is, therefore, not surprising that research on the design and preparation of these types of organic photovoltaics has attracted a lot of attention since the last two decades, leading to constantly g...
Article
Diketopyrrolopyrrole and isoindigo are commercially important dyes that have recently found broad application as electron acceptor and light absorbing groups in organic semiconductors. Their self‐assembly into specific supramolecular structures to control optoelectronic properties has been hampered by limited options for substitution and their high...
Article
An efficient strategy to modulate the mechanical properties of conjugated polymers has been developed through the incorporation of amide-containing alkyl chains in diketopyrrolopyrrole-based conjugated polymers. The side-chain engineering performed with hydrogen bonding moieties (up to 20 mol% of amide-containing side-chains) was found to reduce th...
Article
Full-text available
Nonconjugated segments in polymer semiconductors have been utilized to improve the processability of semiconducting polymers. Recently, several reports have described the improvement of stretchability of polymer semiconductors by incorporating nonconjugated spacers. However, the effect of relative flexibility of such conjugation breakers on mechani...
Article
A side-chain engineering study has been performed with isoindigo-based conjugated polymers to modulate their physical and electronic properties through the incorporation of urea functionalities. Easily accessible and versatile, the incorporation of urea moieties in the side chains of conjugated polymers enables the formation of intermolecular hydro...
Article
A new strategy toward functional materials with novel properties and well-defined structures has been developed through the topochemical polymerization of diacetylene-containing diketopyrrolopyrrole (DPP) derivatives. In order to enable the efficient photopolymerization and crosslinking of the materials, a rational design of DPP-based derivatives h...
Article
Self-assembly of organic macrocycles has been exploited as a preliminary step in the synthesis of soluble and tailorable carbon based nanostructures. Functionalised nanotubes have been prepared using, as core building-blocks, nearly planar ring structures containing several alkyne units, exploiting the geometry achieved in the spontaneous preassemb...
Article
A high performance diketopyrrolopyrrole (DPP)–based semiconducting polymer is modified with ligands to enable metal coordination, and its subsequent effect as field‐effect transistors is investigated. In specific, pyridine‐2,6‐dicarboxamide (PDCA) units are incorporated in a DPP–based polymer backbone with a content from 0 to 30 mol%, and the resul...
Article
The understanding of the structure‐mechanical property relationship for semiconducting polymers is essential for the application of flexible organic electronics. Herein pseudo free‐standing tensile testing, a technique that measures the mechanical property of thin films floating on the surface of water, is used to obtain the stress–strain behaviors...
Article
Full-text available
Supramolecular self-assembly is an increasingly popular approach to design and prepare functional materials,for various applications such as organic electronics and sensing. Despite allowing for a precise organization of photo- and electro-active building blocks, supramolecular assemblies often show poor kinetic stability, which limits their applic...
Article
A simple and efficient strategy to modulate the self-assembly and solid-state morphology of conjugated polymers has been developed by incorporating various amounts of amide-containing alkyl side chains to high charge carrier mobility conjugated polymers based on diketopyrrolopyrrole (DPP). Synthetically easily accessible and tunable, the incorporat...
Article
With the recent development of printable organic electronics and flexible devices, new strategies are developed and investigated to design conjugated semiconducting polymers with innovative properties such as molecular stretchability and self-healing. This review covers the most recent progress in the preparation of these new materials, with a spec...
Article
Porous carbons have previously been widely used as host materials for sulfur (S) electrodes because of their high conductivity and high surface area. But they generally lack strong chemical affinity stabilize polysulphide species. Therefore, conducting polymers have been employed to stabilize S electrodes. Integrating conducting polymers with high-...
Article
Soft and conformable wearable electronics require stretchable semiconductors, but existing ones typically sacrifice charge transport mobility to achieve stretchability. We explore a concept based on the nanoconfinement of polymers to substantially improve the stretchability of polymer semiconductors, without affecting charge transport mobility. The...