start-ver=1.4 cd-journal=joma no-vol=51 cd-vols= no-issue=9 article-no= start-page=971 end-page=974 dt-received= dt-revised= dt-accepted= dt-pub-year=2022 dt-pub=20220905 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Polyiodide Production Triggered by Acidic Phase of Aqueous Solution Confined in Carbon Nanospace en-subtitle= kn-subtitle= en-abstract= kn-abstract=Polyiodide species were synthesized by the acceleration of an acidic environment in the nanospace of single-walled carbon nanotubes (SWCNT) with light irradiation. Raman and EXAFS results strongly support the production of polyiodide species after the adsorption of CsI on SWCNT from aqueous solution. Interestingly, the reaction was initiated by the nano-confined acidic phase formed in a basic environment. The acidic phase plays an essential role as an oxidant for the production of the diiodine that is a source of polyiodide. en-copyright= kn-copyright= en-aut-name=OhkuboTakahiro en-aut-sei=Ohkubo en-aut-mei=Takahiro kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=HiranoYuri en-aut-sei=Hirano en-aut-mei=Yuri kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=NakayasuHiroki en-aut-sei=Nakayasu en-aut-mei=Hiroki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=KurodaYasushige en-aut-sei=Kuroda en-aut-mei=Yasushige kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil=Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=2 en-affil=Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=3 en-affil=Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University kn-affil= affil-num=4 en-affil=Department of Chemistry, Graduate School of Natural Science and Technology, Okayama University kn-affil= en-keyword=Single-wall carbon nanotube kn-keyword=Single-wall carbon nanotube en-keyword=Adsorption kn-keyword=Adsorption en-keyword=Polyiodide kn-keyword=Polyiodide END start-ver=1.4 cd-journal=joma no-vol=85 cd-vols= no-issue=9 article-no= start-page=957 end-page=961 dt-received= dt-revised= dt-accepted= dt-pub-year=2012 dt-pub=201209 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Electroconductive π-Junction Au Nanoparticles en-subtitle= kn-subtitle= en-abstract= kn-abstract=The fabrication of printed electronic circuits using solution-based electroconductive materials at low temperature is essential for the realization of modern printed electronics including transistors, photovoltaic cells, and light-emitting devices. Despite the progress in the field of semiconductor solution materials, reliable electrodes are always fabricated by a vacuum deposition process resulting in only partially solution-processed devices. In this paper, we show that planar phthalocyanine-conjugated Au nanoparticles (NPs) significantly improve the interparticle-carrier-transport properties. The deposition of a solution of the Au NPs under ambient conditions results in an electroconductive metallic thin film without further post-treatment. Maximum conductivity reaches >6600 S cm−1 and the conductivity remains unchanged for at least 1 year under ambient conditions. The all-solution-processed organic field-effect transistor (OFET) fabricated under ambient conditions exhibits mobility values as high as 2 cm2 V−1 s−1, the value of which is comparable to OFET devices having vacuum-deposited Au electrodes. en-copyright= kn-copyright= en-aut-name=KaneharaMasayuki en-aut-sei=Kanehara en-aut-mei=Masayuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=TakeyaJun en-aut-sei=Takeya en-aut-mei=Jun kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=UemuraTakafumi en-aut-sei=Uemura en-aut-mei=Takafumi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=MurataHideyuki en-aut-sei=Murata en-aut-mei=Hideyuki kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=TakimiyaKazuo en-aut-sei=Takimiya en-aut-mei=Kazuo kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=SekineHikaru en-aut-sei=Sekine en-aut-mei=Hikaru kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=TeranishiToshiharu en-aut-sei=Teranishi en-aut-mei=Toshiharu kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= affil-num=1 en-affil= kn-affil=Research Core for Interdisciplinary Sciences, Okayama University affil-num=2 en-affil= kn-affil=Department of Chemistry, Graduate School of Science, Osaka University affil-num=3 en-affil= kn-affil=Department of Chemistry, Graduate School of Science, Osaka University affil-num=4 en-affil= kn-affil=School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST) affil-num=5 en-affil= kn-affil=Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University affil-num=6 en-affil= kn-affil=Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba affil-num=7 en-affil= kn-affil=Department of Chemistry, Graduate School of Pure and Applied Sciences, University of Tsukuba END