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Title: Clear and transparent nanocrystals for infrared-responsive carrier transfer
Authors: Sakamoto, Masanori  kyouindb  KAKEN_id  orcid (unconfirmed)
Kawawaki, Tokuhisa
Kimura, Masato
Vequizo, Junie Jhon M.
Matsunaga, Hironori
Ranasinghe, Chandana Sampath Kumara
Yamakata, Akira
Matsuzaki, Hiroyuki
Furube, Akihiro
Teranishi, Toshiharu  kyouindb  KAKEN_id  orcid (unconfirmed)
Author's alias: 坂本, 雅典
川脇, 徳久
木村, 仁士
松永, 大典
山方, 啓
松﨑, 弘幸
古部, 昭広
寺西, 利治
Keywords: Electron transfer
Light harvesting
Nanophotonics and plasmonics
Issue Date: 24-Jan-2019
Publisher: Springer Nature
Journal title: Nature Communications
Volume: 10
Thesis number: 406
Abstract: Infrared-light-induced carrier transfer is a key technology for ‘invisible’ optical devices for information communication systems and energy devices. However, clear and colourless photo-induced carrier transfer has not yet been demonstrated in the field of photochemistry, to the best of our knowledge. Here, we resolve this problem by employing short-wavelength-infrared (1400–4000 nm) localized surface plasmon resonance-induced electron injection from indium tin oxide nanocrystals to transparent metal oxides. The time-resolved infrared measurements visualize the dynamics of the carrier in this invisible system. Selective excitation of localized surface plasmon resonances causes hot electron injection with high efficiency (33%) and long-lived charge separation (~ 2–200 μs). We anticipate our study not only provides a breakthrough for plasmonic carrier transfer systems but may also stimulate the invention of state-of-the-art invisible optical devices.
Description: 赤外光を電気エネルギーや信号に変換する無色透明な材料の開発に成功 --見えない電子デバイスの開発へ道--. 京都大学プレスリリース. 2019-02-13.
An Author Correction to this article was published on 17 April 2019.
Rights: © The Author(s) 2019. 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
DOI(Published Version): 10.1038/s41467-018-08226-2
PubMed ID: 30679425
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