Block-copolymer-nanowires with nanosized domain segregation and high charge mobilities as stacked p/n heterojunction arrays for repeatable photocurrent switching

Journal of the American Chemical Society
Richard CharvetKatsuhiko Ariga

Abstract

Development of materials for efficient photoenergy conversion is a subject of critical importance in current science and technology. Efficient performance requires well-controlled segregation of electron donor and acceptor moieties, which we have achieved using block copolymers of tetraphenylporphinatozinc(II) (donor) and C(60) fullerene (acceptor) using living ring-opening metathesis polymerization (ROMP). The resulting amphiphilic ROMP block copolymers undergo self-assembly into nanostructured phase-segregated 1-dimensional nanowires with an approximately 5.5 nm periodicity zebra-stripe-like morphology simply by drop-casting solutions of the polymers onto a substrate such as mica or highly oriented pyrolytic graphite (HOPG). Thin films of the self-assembled nanophase-segregated copolymers exhibit high charge carrier mobilities (approximately 0.26 cm(2) V(-1) s(-1)) and electrical conductivities (up to 6.4 x 10(-4) cm(2) V(-1) s(-1)) as well as highly repeatable photocurrent switching with rapid ON/OFF responses upon white light irradiation.

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Citations

Jun 12, 2010·Journal of the American Chemical Society·Seelam PrasanthkumarAyyappanpillai Ajayaghosh
Dec 25, 2010·Journal of the American Chemical Society·Yanke CheLing Zang
Jun 28, 2011·Journal of the American Chemical Society·Hironobu HayashiHiroshi Imahori
Sep 16, 2011·Journal of the American Chemical Society·Antonio MuñozNazario Martín
May 24, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Hongguang LiTakashi Nakanishi
Aug 26, 2010·Chemical Communications : Chem Comm·Hirokuni JintokuHirotaka Ihara
Feb 19, 2011·Physical Chemistry Chemical Physics : PCCP·Lok Kumar ShresthaKenji Aramaki
May 19, 2011·Chemical Communications : Chem Comm·Richard CharvetSomobrata Acharya
Apr 23, 2011·Advanced Drug Delivery Reviews·Katsuhiko ArigaJonathan P Hill
Sep 16, 2015·Scientific Reports·Alberto InsuastyNazario Martín
Jan 1, 2010·Sensors·Katsuhiko ArigaJonathan P Hill
Aug 28, 2010·Advanced Materials·Francesco Giacalone, Nazario Martín
Jan 8, 2015·Chemistry : a European Journal·Fumiyuki ToshimitsuNaotoshi Nakashima
Sep 30, 2016·Science Advances·Vishnu Sukumaran NairAyyappanpillai Ajayaghosh
Sep 25, 2010·Chemical Society Reviews·Sukumaran Santhosh BabuTakashi Nakanishi
Sep 29, 2011·Advanced Materials·Katsuhiko ArigaJonathan P Hill
Mar 21, 2012·Chemical Communications : Chem Comm·Hiroshi ImahoriYuta Takano
Jul 19, 2012·Angewandte Chemie·Felix H SchacherIan Manners
Feb 23, 2019·Science and Technology of Advanced Materials·Katsuhiko ArigaJonathan P Hill
Jul 9, 2011·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Katsuhiko Ariga, Jonathan P Hill
Dec 6, 2017·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Katsuhiko ArigaLok Kumar Shrestha
Feb 7, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Qunwei TangJihuai Wu
Dec 23, 2014·Journal of the American Chemical Society·Javier López-AndariasNazario Martín

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