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Issue 32, 2018
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A photochemical layer-by-layer solution process for preparing organic semiconducting thin films having the right material at the right place

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Abstract

The synergistic action of properly integrated semiconducting materials can bring about sophisticated electronic processes and functions. However, it is often a great challenge to achieve optimal performance in organic devices because of the limited control over the distribution of different materials in active layers. Here, we employ a unique photoreaction-based layer-by-layer solution process for preparing ternary organic photovoltaic layers. This process is applicable to a variety of compounds from wide-band-gap small molecules to narrow-band-gap π-extended systems, and enables the preparation of multicomponent organic semiconducting thin films having the right compound at the right place. The resulting ternary photovoltaic devices afford high internal quantum efficiencies, leading to an approximately two times higher power-conversion efficiency as compared to the corresponding binary bulk-heterojunction system. This work opens up new possibilities in designing materials and active layers for solution-processed organic electronic devices.

Graphical abstract: A photochemical layer-by-layer solution process for preparing organic semiconducting thin films having the right material at the right place

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Supplementary files

Article information


Submitted
20 Apr 2018
Accepted
16 Jul 2018
First published
17 Jul 2018

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2018,9, 6614-6621
Article type
Edge Article

A photochemical layer-by-layer solution process for preparing organic semiconducting thin films having the right material at the right place

M. Suzuki, Y. Yamaguchi, K. Uchinaga, K. Takahira, C. Quinton, S. Yamamoto, N. Nagami, M. Furukawa, K. Nakayama and H. Yamada, Chem. Sci., 2018, 9, 6614
DOI: 10.1039/C8SC01799A

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
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    [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
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    [Original citation] - Published by The Royal Society of Chemistry.

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