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  1. B100 理学部/理学研究科
  2. B100a 雑誌掲載論文
  3. 学術雑誌

Towards high-bandwidth organic photodetection based on pure active layer polarization

http://hdl.handle.net/2237/00031413
http://hdl.handle.net/2237/00031413
1916aa37-13cb-40fc-ae1b-d40017cbe0be
名前 / ファイル ライセンス アクション
s41598-018-33822-z.pdf s41598-018-33822-z (2.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-01-29
タイトル
タイトル Towards high-bandwidth organic photodetection based on pure active layer polarization
言語 en
著者 Reissig, Louisa

× Reissig, Louisa

WEKO 95815

en Reissig, Louisa

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Dalgleish, Simon

× Dalgleish, Simon

WEKO 95816

en Dalgleish, Simon

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Awaga, Kunio

× Awaga, Kunio

WEKO 95817

en Awaga, Kunio

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
キーワード
主題Scheme Other
主題 Optoelectronic devices and components
キーワード
主題Scheme Other
主題 Photonic devices
抄録
内容記述 Organic photodetectors offer distinct advantages over their inorganic analogues, most notably through optical transparency and flexibility, yet their figures-of-merit still lag behind those of inorganic devices, and optimization strategies generally encounter a trade-off between device responsivity and bandwidth. Here we propose a novel photodetector architecture in which an organic photoactive semiconductor layer (S) is sandwiched between two thick insulating layers (I) that separate the semiconductor from the metallic contacts (M). In this architecture a differential photocurrent response is generated purely from the polarization of the active layer under illumination. Especially for an asymmetric MISIM design, where one insulating layer is a high-k ionic liquid IIL and the other a low-k polymer dielectric Ip, the responsivity/bandwidth trade-off is broken, since the role of the IIL in efficient charge separation is maintained, while the total device capacitance is reduced according to Ip. Thus the benefits of single insulating layer differential photodetectors (MISM) using either IIL or Ip are combined in a single device. Further improvements in device performance are also demonstrated by decreasing the series resistance of the photoactive layer through semiconductor:metal blending and by operation under strong background light.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 Nature
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1038/s41598-018-33822-z
ISSN(Online)
収録物識別子タイプ EISSN
収録物識別子 2045-2322
書誌情報 en : Scientific Reports

巻 8, 号 1, p. 15415, 発行日 2018-10-18
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