Itaru Osaka on Muck Rack

Itaru Osaka

As seen in: Nature, Polymer International, Wiley Online Library, Journal of Chemical & Engineering Data, Chemical Communications, Journal of Materials Chemistry A, Royal Society of Chemistry
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Articles

Electron-deficient building units for high-performance electron-transporting semiconducting polymers

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By Tsubasa Mikie, Itaru Osaka
| Nature Verified
Abstract High-performance electron-transporting semiconducting polymers are indispensable for the realization of flexible and fully plastic electronic devices. Their molecular design fundamentally relies on the incorporation of strongly electron-deficient building units that stabilize reduced states and promote efficient electron-transport processes. The creation of new electron-deficient units therefore remains a central challenge in the research field of semiconducting polymers.
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Backbone rigidity promoting hole delocalization and enabling efficient charge generation with minimal voltage loss in nonfullerene organic photovoltaics

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By Shota Suruga, Tsubasa Mikie, Yuki Sato, Kazuki Kohzuki, Jihun Jeon, Hyung Do Kim, Hiroyuki Ishii, Kyohei Nakano, Keisuke Tajima, Hideo Ohkita, Itaru Osaka, Shin Inamoto
| Nature Verified
Abstract Achieving both low voltage loss and efficient charge generation remains a major challenge in advancing high-performance organic photovoltaics (OPVs). Here, we show that photovoltaic cells using PTNT1-F—a dithienonaphthobisthiadiazole (TNT)-based polymer recently developed by our group—exhibit a notably low nonradiative voltage loss (∆Vnr) of 0.18 V, suggesting a minimal driving force for charge generation.
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Effect of Fluorine Substitution Number in Naphthobisthiadiazole‐Based Polymers on the Performance of Nonfullerene Organic Photovoltaic Cells

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By Tsubasa Mikie, Itaru Osaka, Mayu Tomita
| Wiley Online Library Verified
Conflicts of Interest The authors declare no conflicts of interest. Data Availability Statement The data that supports the findings of this study are available in the supplementary material of this article Supporting Information Filename Description asia70530-sup-0001-SuppMat.pdf1.9 MB Supporting File: asia70530-sup-0001-SuppMat.pdf. References 1 and , “What Makes a Good Solar Cell?,” Advanced Energy Materials 8 (2018): 1703385, https://doi.org/10.1002/aenm.201703385.
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