Keisuke Yamane

Associate Professor, Graduate School of Engineering, Toyohashi University of Technology*Profile is at the time of the award.

2025Inamori Research GrantsScience & Engineering

researchmap

Research topics: Growth of Germanium co-doped with group-III and group-V elements for Silicon Photonics Application

Keyword

Summary: In recent years, rapid advancements in the field of silicon photonics have enabled the fabrication of various optical devices, excluding light-emitting elements, on Si substrates. This progress has facilitated the integration of sensors and optical communication functions onto a single chip. The final key device required is a light-emitting element compatible with the CMOS process.

The applicant has developed a technology for monolithic integration of light-emitting devices and LSI. However, due to material constraints, the realization of an infrared light source for optical communication has not yet been achieved. This study aims to establish a true monolithic integration technology by developing a novel infrared light-emitting material compatible with the CMOS process.

Existing materials such as InGaAs, GeSn, and n-Ge have yet to show a clear path toward system integration. Therefore, instead of following conventional materials, this research will explore new materials highly compatible with Si integrated circuits. Specifically, we will develop an alloying technology for III-V compound semiconductors and Ge, evaluate their electrical and optical properties, and aim to fabricate a light-emitting device.

The successful achievement of this research goal is expected to bring innovation to silicon photonics by enabling inter-chip optical communication without relying on external light sources, diverging from conventional approaches.

Comment

This research challenges the realization of a CMOS-compatible infrared light-emitting device, the final hurdle in the field of silicon photonics. Instead of relying on conventional materials, we adopt a unique approach by developing a mixed-crystal technology combining III-V compound semiconductors and Ge, paving the way for novel material exploration. Through this endeavor, we aim to establish true monolithic integration technology and bring innovation to silicon photonics. We are fully committed to ensuring the success of this research, laying the foundation for next-generation high-performance, low-power optical communication technology.

Find other recipients

Science & Engineering

Shintaro Takahashi

Gakushuin University

Yasutomo Ota

The University of Tokyo

Nao Hamamuki

Hokkaido University

Takahiko Masuda

Okayama University

Masahiko Ueda

Science & Engineering Information Science

Shun Fujii

Keio University

Takashi Masuda

Japan Advanced Institute of Science and Technology

Material Science

Yuya Tanaka

Material Science

Yasuhito Suzuki

Osaka Metropolitan University

Takaiku Sakamoto

Kyoto University

Yasutaka Kamei

Information Science

InaRIS Fellow

Kazuki Miyata

Kanazawa University

Ryo Yazaki

Osaka University

Yoichi Sasaki

Kyushu University

Shun Kojima

The University of Tokyo

Mitsuaki Kaneko

Kyoto University

Tsuyoshi Nishikawa

Kumamoto University

Material Science

Taishi Yokoi

Division of Biological Science, Nara Institute of Science and Technology

Material Science

Atsuro Takai

National Institute for Materials Science

Eiji Yuba

Osaka Prefecture University

Material Science

Takaichi Watanabe

Okayama University

Takashi Kurumaji

Kumamoto University

Sotaro Kusumoto

Kanagawa University

Shotaro Hayashi

Science & Engineering Material Science

Momoko Deura

The University of Tokyo

Material Science

Eisuke Sato

University of Yamanashi

Material Science

Shuntaro Tsubaki

Tokyo Institute of Technology

Daichi Chiba

The University of Tokyo

Material Science

Yasuaki Hiraoka

Kyoto University

InaRIS Fellow

Tomoko Shimizu

Keio University

Material Science

Trishit Ruj

Okayama University

Mathematics and Physics

Hiroaki Shimomoto

Ehime University

Keisuke Asano

Material Science

Naoji Matsuhisa

Electronics Science & Engineering

Chifumi Nishioka

Kyoto University

Information Science

Sho Tanimoto

Kumamoto University

Shun Omagari

Institute of Science Tokyo

Hideaki Teshima

Science & Engineering Physics Material Science

Atsushi Nishizawa

University of Tokyo

Tadashi Takayanagi

Kyoto University

InaRIS Fellow

Nobuhiko Hosono

The University of Tokyo

Yukiya Kitayama

Osaka Metropolitan University

Ade Irma Suriajaya

Kyushu University

Nobuyuki Kobayashi

Osaka University

Yasushi Takahashi

Osaka Prefecture University

Kazumichi Yoshii

Tokushima University

Satoshi Horike

Kyoto University

Material Science

Emi Minamitani

Osaka University

Shota Kariya

Osaka University

Material Science

Masaki Tanaka

Science & Engineering Material Science

Keiko Ishii

Chuo University

Seiko Takagi

Hokkaido University

Kohei Ichikawa

Waseda University

Mathematics and Physics

Rei Itsukushima

Kyushu Institute of Technology

Hiroko Watanabe

Tohoku University

Tomoko Fukuyama

Ritsumeikan University

Material Science

Max Hirschberger

The University of Tokyo

Ikuyuki Mitsuishi

Nagoya University

Yukari Oda

Kyushu University

Material Science

Kiwamu Watanabe

Chuo University

Mathematics Mathmatics

Takayuki Nozaki

Yamaguchi University

Information Science

Moritsugu Sakamoto

Nagaoka University of Technology

Kazue Kudo

Ochamomizu University

Kazuma Shinoda

Science & Engineering Information Science

Shunsuke Tsuchioka

Masaaki Sadakiyo

Kyushu University

Material Science

Atsushi Sekimoto

Chiba University

Hirobumi Tobe

Japan Aerospace Exploration Agency

Material Science

Kihiro Yamada

Physics Science & Engineering

Shunsuke Fukami

Tohoku University

Material Science

InaRIS Fellow

Takashi Takeda

Science & Engineering Material Science

Masahiro Nomura

The University of Tokyo

Takuya Iwashita

Oita University

Shunsuke Sueki

Drug Discovery Pharmacy

Tetsuya Hiraiwa

The University of Tokyo

Takakazu Seki

Hirosaki University

Shun Takahashi

Kyoto Institute of Technology

Fumitaka Ishiwari

Osaka University

Material Science

Kengo Tomida

Tohoku University

Takuya Maeda

The University of Tokyo

Takuo Tsuda

The University of Electro-Communications

Masayuki Gon

Kyoto University

Material Science

Taichi Goto

Kyoto University

Material Science

Takayuki Umakoshi

Osaka University

Masao Kamimura

Tokyo University of Science

Material Science

Hosho Katsura

The University of Tokyo

Kazuya Sakai

Tokyo Metropolitan University

Information Science

Mari Einaga

Osaka University

Hiroyoshi Nobukane

Hokkaido University

Shunsuke Yamada

Science & Engineering Material Science

Hironobu Hayashi

National Institute for Materials Science

Masashi Suzuki

University of Yamanashi

Aki Goto

Japan Aerospace Exploration Agency

Material Science

Yoshihiro Tanaka

Nagoya Institute of Technology

Information Science

InaRIS Fellow

Hajime Sato

Okayama University

Hidemaro Suwa

Science & Engineering Physics

Tomohiro Fukushima

Hokkaido University

Teppei Araki

Osaka University

Midori Akiyama

Kyoto University

Material Science

Manabu Okui

Chuo University

Ryohei Kakuchi

Gunma University

Material Science

Takamasa Tsukamoto

The University of Tokyo

Kyohei Takae

The University of Tokyo

Ryo Takahashi

Ochanomizu University

Suguru Yoshida

Chemistry Pharmacy

Takeyoshi Tajiri

University of Electro-Communications

Shoki Kosai

Ritsumeikan University

Enviromental Conservation Science

Yuki Hibiya

Science & Engineering Mathematics

Daishi Fujita

Kyoto University

Material Science

InaRIS Fellow

Yukinobu Toda

The University of Tokyo

InaRIS Fellow

Masakazu Yamazaki

Tokyo Institute of Technology

Haruki Uchiyama

Nagoya University

Eiji Yamaguchi

Gifu Pharmaceutical University

Daiki Nishiguchi

The University of Tokyo

Weiwei Zhou

Tohoku University

Shigeru Kaku

Osaka University

Material Science

Kounosuke Oisaki

Tomohiro Higashino

Kyoto University

Masahito Sakoda

Hokkaido University

Mathematics and Physics

Hiroshi Inaba

Tottori University

Material Science

Takahisa Shiraishi

Kumamoto University

Ryota Matsuoka

University of Tsukuba

Material Science

Yoshihiko Okamoto

Nagoya University

Material Science

Yusuke Nakamura

Nagoya University

Mathematics and Physics