Author
Y. Ikenoue
Bio: Y. Ikenoue is an academic researcher from University of California, Santa Barbara. The author has contributed to research in topics: Conductive polymer & Counterion. The author has an hindex of 5, co-authored 7 publications receiving 770 citations.
Topics: Conductive polymer, Counterion, Polymer, Thiophene, Pentafluoride
Papers
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TL;DR: In this paper, the authors report their success in the preparation of two polymers which are soluble in water in the doped and undoped states, which is a first for organic-solvent-soluble conducting polymers.
Abstract: It has only been within the last few months that organic-solvent-soluble conducting polymers have been developed. Previously, solubility in a mixture of arsenic trifluoride/pentafluoride was the singular path available to processability of conducting polymers. In this paper they report their success in the preparation of two polymers which are soluble in water in the doped and undoped statesexclamation Sodium poly(3-thiophene-..beta..-ethanesulfonate) (P3-ETSNa) and sodium poly(3-(thiophene-delta-butanesulfonate) (P3-BTSNa) and their respective conjugate acids are water soluble. The latter are of interest because, upon oxidation, they can lose a proton concomitant with electron loss to produce self-doped polymers; i.e., doped polymers where the counterion is attached to the polymer via a covalent bond.
398 citations
TL;DR: The first known examples of water-soluble conducting polymers are poly-3-(2-ethaneulfonate)thiophene and poly-4-butanesulfonates (3-3-butane) thiophene.
249 citations
TL;DR: In this paper, the authors used cyclic voltammetry in conjunction with X-ray microprobe analysis to investigate the doping mechanism in covalently-bonded-anion (self-doped) conducting polymers.
80 citations
TL;DR: In this paper, the authors present the synthesis and preliminary characterization of a new polymer, PDOMITN, which is one of the smallest energy gap conducting polymers with an energy gap value comparable to that of PITN (Eg ∼ 1.1 eV) and smaller than that of poly(naphtho[2,3−c]thiophene) (eg ∼ 2.5 eV).
48 citations
TL;DR: In this article, the band gap of poly(naphtho[2,3-c ]thiophene) was found to be 1.5 eV, whereas it had been previously expected from theoretical calculations to be nearly zero eV.
33 citations
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1,521 citations
TL;DR: Dithieno[3,2-b:2′3′-d]thiophene-4,4-dioxides 1221 3.3.1.
Abstract: 3.2. Thienothiophenes 1216 3.2.1. Thieno[3,4-b]thiophene Analogues 1216 3.2.2. Thieno[3,2-b]thiophene Analogues 1217 3.2.3. Thieno[2,3-b]thiophene Analogues 1218 3.3. , ′-Bridged Bithiophenes 1219 3.3.1. Dithienothiophene (DTT) Analogues 1220 3.3.2. Dithieno[3,2-b:2′3′-d]thiophene-4,4-dioxides 1221 3.3.3. Dithienosilole (DTS) Analogues 1221 3.3.4. Cyclopentadithiophene (CPDT) Analogues 1221 3.3.5. Nitrogen and Phosphor Atom Bridged Bithiophenes 1222
1,224 citations
TL;DR: Electropolymerization in Novel Electrolytic Media 4745: Influence of the Polymerization Technique, Influence of Experimental Conditions, and Specific Phenomena of n-Doping.
Abstract: 2.2. Cathodic Electropolymerization 4732 2.2.1. Electropolymerization of PPXs and PPVs 4732 3. Charging-Discharging of Conducting Polymers 4733 3.1. Redox Properties of Oligomers and Polymers 4733 3.2. Specific Phenomena of n-Doping 4739 3.3. Conductivity in Charged Systems 4740 4. Controlling the Electropolymerization Process 4742 4.1. Influence of the Polymerization Technique 4742 4.2. Influence of Experimental Conditions 4743 4.3. Electropolymerization in Novel Electrolytic Media 4745
979 citations
TL;DR: In this paper, side chains in conjugated polymers have been used to tune a polymer's physical properties, including absorption, emission, energy level, molecular packing, and charge transport.
Abstract: Side chains in conjugated polymers have been primarily utilized as solubilizing groups. However, these side chains have roles that are far beyond. We advocate using side chain engineering to tune a polymer’s physical properties, including absorption, emission, energy level, molecular packing, and charge transport. To date, numerous flexible substituents suitable for constructing side chains have been reported. In this Perspective article, we advocate that the side chain engineering approach can advance better designs for next-generation conjugated polymers.
894 citations