Kenichi Cho

Profile Information

Affiliation: RIKEN

Degree: Doctor of Science(Kyoto University)
Master of Science(Kyoto University)

Contact information: kenichi.choriken.jp
Researcher number: 01001198
ORCID iD: https://orcid.org/0009-0005-1696-4706
J-GLOBAL ID: 202201008396384282
researchmap Member ID: R000046461

External link: https://sites.google.com/view/kenichi-chos-homepage/home

Research Areas

Research History

Apr, 2024 - Present

Nanoscale Quantum Photonics Laboratory (Kato Group), RIKEN Cluster for Pioneering Research
Apr, 2023 - Mar, 2025

Research Fellowships for Young Scientists (DC2,PD), Japan Society for the Promotion of Science (JSPS)
Apr, 2019 - Mar, 2024

Nanophotonics Lab (Kanemitsu Group), Institute for Chemical Research, Kyoto University
Jul, 2021 - Mar, 2023

The establishment of university fellowships towards the creation of science technology innovation, Japan Science and Technology Agency (JST)
Oct, 2022 - Oct, 2022

(Internship), National Institute for Materials Science

Awards

Dec, 2023

ICR award for graduate students, Institute for Chemical Research, Kyoto Univ.
Sep, 2022

Young Scientist Presentation Award, The Japan Society of Applied Physics
Sep, 2021

Student Presentation Award, The Physical Society of Japan

Major Papers

Internal Electric Field Manipulates Exciton–Phonon Couplings in Single Lead Halide Perovskite Nanocrystals

Kenichi Cho, Hirokazu Tahara, Takumi Yamada, Mitsuki Muto, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

The Journal of Physical Chemistry Letters, 15 11969-11974, Nov, 2024 Peer-reviewedLead author
Size Dependence of Trion and Biexciton Binding Energies in Lead Halide Perovskite Nanocrystals

Kenichi Cho, Takao Sato, Takumi Yamada, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Hidekatsu Suzuura, Yoshihiko Kanemitsu

ACS Nano, 18 5723-5729, Feb, 2024 Peer-reviewedLead author
Temperature dependence of photoluminescence spectrum of single lead halide perovskite nanocrystals: Effect of size on the phase transition temperature

Kenichi Cho, Takumi Yamada, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

The Journal of Chemical Physics, 158 201104, May, 2023 Peer-reviewedInvitedLead author
Exciton-Phonon and Trion-Phonon Couplings Revealed by Photoluminescence Spectroscopy of Single CsPbBr3 Perovskite Nanocrystals

Kenichi Cho, Hirokazu Tahara, Takumi Yamada, Hidekatsu Suzuura, Terumasa Tadano, Ryota Sato, Masaki Saruyama, Hideki Hirori, Toshiharu Teranishi, Yoshihiko Kanemitsu

Nano Letters, 22 7674-7681, Sep, 2022 Peer-reviewedLead author
Luminescence Fine Structures in Single Lead Halide Perovskite Nanocrystals: Size Dependence of the Exciton-Phonon Coupling

Kenichi Cho, Takumi Yamada, Hirokazu Tahara, Terumasa Tadano, Hidekatsu Suzuura, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

Nano Letters, 21 7206-7212, Sep, 2021 Peer-reviewedLead author

Misc.

External electric field control of photoluminescence of single lead halide perovskite nanocrystals

張健一, 田原弘量, 田原弘量, 山田琢允, 佐藤良太, 猿山雅亮, 寺西利治, 金光義彦

応用物理学会秋季学術講演会講演予稿集(CD-ROM), 84th, 2023
Size dependence of structural phase transition in individual lead halide perovskite nanocrystals

張健一, 山田琢允, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

応用物理学会春季学術講演会講演予稿集(CD-ROM), 70th, 2023
Exciton-phonon couplings in single lead-halide perovskite nanocrystals

張健一, 山田琢允, 田原弘量, 只野央将, 鈴浦秀勝, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

応用物理学会春季学術講演会講演予稿集(CD-ROM), 69th, 2022
Exciton-phonon couplings in single lead-halide perovskite nanocrystals

張健一, 山田琢允, 田原弘量, 只野央将, 鈴浦秀勝, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

応用物理学会秋季学術講演会講演予稿集(CD-ROM), 83rd, 2022
Photoluminescence of LO-phonon replicas in single CsPbBr₃ perovskite nanocrystals

張健一, 田原弘量, 田原弘量, 山田琢允, 鈴浦秀勝, 只野央将, 佐藤良太, 猿山雅亮, 廣理英基, 寺西利治 …

日本物理学会講演概要集(CD-ROM), 77(2), 2022

Presentations

固体単一光子源 ~室温での高非識別性単一光子発生を目指して~

張健一

慶應義塾大学・次世代研究プロジェクト推進プログラム「光ビッグデータの遠隔共有による次世代量子計測・量子通信技術の確立」2024年第2回ミーティング, Mar, 2025 Invited
量子ドット中の励起子複合体束縛エネルギーのサイズ依存性に対する誘電閉じ込め及びフォノン遮蔽の効果

佐藤貴男, 張健一, 鈴浦秀勝, 金光義彦

日本物理学会2025年春季大会, Mar, 2025
Exciton-phonon interactions in halide perovskite quantum dots

Yoshihiko Kanemitsu, Kenichi Cho, Takumi Yamada, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi

2024 MRS Fall Meeting, Dec, 2024
カーボンナノチューブを用いた単一光子源

張健一

理化学研究所新領域開拓課題「一分子の科学」合同合宿セミナー, Oct, 2024
Photoluminescence properties of lead halide perovskite nanocrystals revealed by single-dot spectroscopy

Takumi Yamada, Kenichi Cho, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu

PRiME 2024, Oct, 2024
Effects of polarons and dielectric confinement on exciton systems in quantum dots

Takao Sato, Kenichi Cho, Hidekatsu Suzuura, Yoshihiko Kanemitsu

Sep, 2024
Calculations of Size-Dependent Trions and Biexcitons Binding Energies in Lead Halide Perovskite Nanocrystals

Takao Sato, Kenichi Cho, Hidekatsu Suzuura, Yoshihiko Kanemitsu

International Conference on the Physics of Semiconductors 2024, Jul, 2024
Room-Temperature Indistinguishable Single Photon Generation from Carbon Nanotubes

Kenichi Cho

FY2024 Early-Career Researchers' Workshop for the Pioneering Project Single Molecule Science, RIKEN, May, 2024
External electric field control of photoluminescence of single lead halide perovskite nanocrystals

Kenichi Cho, Hirokazu Tahara, Takumi Yamada, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu

Sep, 2023
ハロゲン化鉛ペロブスカイトナノ粒子における励起子格子相互作用

張健一

理化学研究所加藤ナノ量子フォトニクス研究室セミナー, Apr, 2023
Exciton–phonon interactions in lead halide perovskite nanocrystals revealed by single-dot photoluminescence spectroscopy

Takumi Yamada, Kenichi Cho, Hirokazu Tahara, Terumasa Tadano, Hidekatsu Suzuura, Ryota Sato, Masaki Saruyama, Toshiharu Teranishi, Yoshihiko Kanemitsu

2023 MRS Spring Meeting, Apr, 2023
Size-Dependent Structural Phase Transition in Single Lead Halide Perovskite Nanocrystals

Kenichi Cho, Takumi Yamada, Yoshihiko Kanemitsu

International Symposia on Creation of Advanced Photonic and Electronic Devices 2023 and Advanced Quantum Technology for Future 2023, Mar, 2023
Size dependence of structural phase transition in individual lead halide perovskite nanocrystals

Kenichi Cho, Takumi Yamada, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu

Mar, 2023
単一ペロブスカイトナノ粒子のエキシトン-フォノン相互作用:粒子サイズ依存性

張健一

学際統合物質科学研究機構 (IRCCS) 成果報告会・産学ワークショップ, Feb, 2023
ハライドペロブスカイトナノ粒子のエキシトン-フォノン相互作用

張健一, 田原弘量, 山田琢允, 鈴浦秀勝, 只野央将, 佐藤良太, 猿山雅亮, 廣理英基, 寺西利治, 金光義彦

第33回光物性研究会, Dec, 2022
Electro-phonon interactions in single CsPbBr3 nanocrystals at low temperatures

Kenichi Cho

Workshop for Advanced Quantum Technology for Future 2022, Sep, 2022
[講演奨励賞受賞記念講演]ペロブスカイトナノ粒子のエキシトン-フォノン相互作用

張健一, 山田琢允, 田原弘量, 只野央将, 鈴浦秀勝, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

応用物理学会第83回秋季学術講演会, Sep, 2022 Invited
単一CsPbBr3ペロブスカイトナノ粒子のLOフォノンレプリカ発光

張健一, 田原弘量, 山田琢允, 鈴浦秀勝, 只野央将, 佐藤良太, 猿山雅亮, 廣理英基, 寺西利治, 金光義彦

日本物理学会2022年秋季大会, Sep, 2022
Exciton-LO Phonon Interactions in Lead Halide Perovskite Nanocrystals Studied by Single Dot Spectroscopy

Kenichi Cho, Yoshihiko Kanemitsu

International Symposium on Creation of Advanced Photonic and Electronic Devices 2022, Mar, 2022
ハライドペロブスカイトナノ粒子における励起子格子相互作用

張健一, 山田琢允, 田原弘量, 只野央将, 鈴浦秀勝, 猿山雅亮, 佐藤良太, 寺西利治, 金光義彦

応用物理学会第69回春季学術講演会, Mar, 2022