K
Kazuhiro Marumoto
Researcher at University of Tsukuba
Publications - 141
Citations - 2260
Kazuhiro Marumoto is an academic researcher from University of Tsukuba. The author has contributed to research in topics: Electron paramagnetic resonance & Polymer solar cell. The author has an hindex of 23, co-authored 130 publications receiving 1870 citations. Previous affiliations of Kazuhiro Marumoto include Applied Science Private University & University of Tokyo.
Papers
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Journal ArticleDOI
2D coherent charge transport in highly ordered conducting polymers doped by solid state diffusion
Keehoon Kang,Shun Watanabe,Shun Watanabe,Shun Watanabe,Katharina Broch,Alessandro Sepe,Adam J. Brown,Iyad Nasrallah,Mark Nikolka,Zhuping Fei,Martin Heeney,Daisuke Matsumoto,Kazuhiro Marumoto,Hisaaki Tanaka,Shin-ichi Kuroda,Henning Sirringhaus +15 more
TL;DR: It is shown that in the highly ordered lamellar microstructure of a regioregular thiophene-based conjugated polymer, a small-molecule p-type dopant can be incorporated by solid state diffusion into the layers of solubilizing side chains without disrupting the conjugate layers.
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Spatial extent of wave functions of gate-induced hole carriers in pentacene field-effect devices as investigated by electron spin resonance.
TL;DR: An electron spin resonance (ESR) method is applied to a pentacene field-effect device to investigate gate-induced hole carriers in such devices, demonstrating that all of the field-injected carriers have S = 1/2 spins.
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ESR studies of photogenerated polarons in regioregular poly(3-alkylthiophene)–fullerene composite
TL;DR: In this article, two transient light-induced electron spin resonance (LESR) signals of photogenerated positive and negative polarons on regioregular poly(3-octylthiophene) (PAT8) and fullerene (C60) using variable photoexcitation energy up to 4.1
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Electron Spin Resonance of Field-Induced Polarons in Regioregular Poly(3-alkylthiophene) Using Metal–Insulator–Semiconductor Diode Structures
Kazuhiro Marumoto,Y. Muramatsu,Yoji Nagano,Takamichi Iwata,Sota Ukai,Hiroshi Ito,Shin-ichi Kuroda,Yukihiro Shimoi,Shuji Abe +8 more
TL;DR: In this article, the field-induced electron spin resonance (ESR) signals were clearly observed; their intensities monotonically increased as the absolute value of the gate bias increased in the accumulation mode with a saturation behavior at higher voltages.
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Direct observation of hole accumulation in polymer solar cells during device operation using light-induced electron spin resonance.
TL;DR: There has been a signifi cant amount of interest in the high power conversion effi ciency (PCE) of 10% that was recently obtained in organic thin-fi lm solar cells due to their potential practical applications.