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On-wafer band engineering for Ge epitaxial layers selectively grown on Si

Research Project

Project/Area Number 21H01367
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21050:Electric and electronic materials-related
Research InstitutionToyohashi University of Technology

Principal Investigator

Ishikawa Yasuhiko  豊橋技術科学大学, 工学(系)研究科(研究院), 教授 (60303541)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2022: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥10,270,000 (Direct Cost: ¥7,900,000、Indirect Cost: ¥2,370,000)
Keywordsシリコンフォトニクス / ゲルマニウム / バンドエンジニアリング / 直接遷移バンドギャップ / 動作波長制御
Outline of Research at the Start

Siウエハ面内でGeエピタキシャル層の直接遷移バンドギャップを制御し、Siフォトニクス用Ge光素子の動作波長制御に応用する。Si上に選択成長した細線状Geに対して内蔵引張ひずみの緩和や圧縮ひずみの外部印加を行い、直接遷移ギャップ = 動作波長の制御を試みる。これまでに開拓したひずみGe光技術を発展させ、大容量・低電力の光通信技術として社会貢献する。

Outline of Final Research Achievements

In a sub-micron wire structure of Ge epitaxially grown by selective-area chemical vapor deposition, the direct gap of Ge is successfully controlled on a Si wafer by appropriately using "relaxation of tensile lattice strain" and "efficient application of tensile or compressive lattice strain by SiNx external stressor". Regarding the Si photonics, this on-wafer band engineering enables Ge optical modulators and photodetectors on Si operating in the C (1.530-1.565 microns) and L (1.565-1.625 microns) bands of optical communications. It is important that the optical devices operating in a wide wavelength range is realized with only a single composition of Ge (Ge: 100%).

Academic Significance and Societal Importance of the Research Achievements

学術的意義は、Geサブミクロン細線構造中の格子ひずみを適切に変化させることにより、Siウエハ面内でGeの直接遷移バンドギャップを制御することを可能とした点にある。混晶に頼らずに単一組成のGeでバンドギャップの面内制御を実現したことで、異なる波長で動作する光デバイスをSiチップ上に集積する工程を大幅に簡略化することが可能になる。大容量・低電力の光通信デバイスを作製する技術として社会に貢献できる。また、本研究の手法はIII-V族半導体の光デバイスにも適用できるものであり、波及効果も期待できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (28 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (18 results) (of which Int'l Joint Research: 5 results,  Invited: 6 results) Remarks (2 results)

  • [Int'l Joint Research] 国民大学校(韓国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] マサチューセッツ工科大学(米国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Anti-relaxation of tensile lattice strain in Si-embedded Ge strip structure for photonic device applications2024

    • Author(s)
      Chombo Joshua、Bin Amin Mohd Faiz、Piedra-Lorenzana Jose A.、Hizawa Takeshi、Yamane Keisuke、Jiang Mingjun、Ahn Donghwan、Wada Kazumi、Ishikawa Yasuhiko
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 3 Pages: 03SP32-03SP32

    • DOI

      10.35848/1347-4065/ad2137

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-performance Ge/Si electro-absorption optical modulator up to 85°C and its highly efficient photodetector operation2023

    • Author(s)
      Fujikata Junichi、Noguchi Masataka、Katamawari Riku、Inaba Kyosuke、Ono Hideki、Shimura Daisuke、Onawa Yosuke、Yaegashi Hiroki、Ishikawa Yasuhiko
    • Journal Title

      Optics Express

      Volume: 31 Issue: 6 Pages: 10732-10732

    • DOI

      10.1364/oe.484380

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Direct Bandgap Control by Narrowing the Germanium Strip Structure on Silicon for C+L Band Photonic Devices2022

    • Author(s)
      Sonoi Shuhei、Katamawari Riku、Shimokawa Manami、Inaba Kyosuke、Piedra-Lorenzana Jose A.、Hizawa Takeshi、Fujikata Junichi、Ishikawa Yasuhiko
    • Journal Title

      IEEE Journal of Quantum Electronics

      Volume: 58 Issue: 5 Pages: 1-9

    • DOI

      10.1109/jqe.2022.3203128

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Near-Infrared pin Photodetector of Strain-Enhanced Ge Layer Epitaxially Grown on a Bonded Si-on-Quartz Wafer2022

    • Author(s)
      Kuzutani Mikiya、Furuya Satoki、Piedra Lorenzana Jose Alberto、Hizawa Takeshi、Ishikawa Yasuhiko
    • Journal Title

      ECS Transactions

      Volume: 109 Issue: 4 Pages: 29-34

    • DOI

      10.1149/10904.0029ecst

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Si-capping-induced surface roughening on the strip structures of Ge selectively grown on an Si substrate2021

    • Author(s)
      Katamawari Riku、Kawashita Kazuki、Hizawa Takeshi、Ishikawa Yasuhiko
    • Journal Title

      Journal of Vacuum Science and Technology B

      Volume: 39 Issue: 4 Pages: 042204-042204

    • DOI

      10.1116/6.0001142

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] (Invited) Selective Epitaxy of Submicron Ge Wire Structures for Photodetectors and Optical Modulators in Si Photonics2021

    • Author(s)
      Ishikawa Yasuhiko、Noguchi Kyosuke、Tachibana Mayu、Kawashita Kazuki、Oyamada Ryota、Motomura Kazuki、Sonoi Shuhei、Katamawari Riku、Hizawa Takeshi
    • Journal Title

      ECS Transactions

      Volume: 104 Issue: 4 Pages: 147-155

    • DOI

      10.1149/10404.0147ecst

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 引張格子ひずみを増強したGe層を用いたSi上フリースペース近赤外受光器の特性評価2024

    • Author(s)
      阿部洸司、葛谷樹矢、古家聖輝、Jose A. Piedra-Lorenzana、飛沢健、石川靖彦
    • Organizer
      第21回赤外放射応用関連学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Franz-Keldysh Effect in Lateral pin Photodetectors of Ge Strip on Si at C-, L-, and U-band Wavelengths2024

    • Author(s)
      Shohei Kaneko, Jose A. Piedra-Lorenzana, Keisuke Yamane, Junichi Fujikata, and Yasuhiko Ishikawa
    • Organizer
      2024 IEEE Silicon Photonics Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Si上Ge細線構造を用いた横型p-i-n受光器におけるLおよびU帯での受光感度向上2023

    • Author(s)
      金子尚平、Jose A.Piedra-Lorenzana、藤方潤一、石川靖彦
    • Organizer
      Photonic Device Workshop 2023 (PDW2023)
    • Related Report
      2023 Annual Research Report
  • [Presentation] SiGe集積フォトニクス2023

    • Author(s)
      石川靖彦
    • Organizer
      第17回静岡大学超領域研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Si上Ge層のCVD成長と集積光デバイス応用2023

    • Author(s)
      石川靖彦
    • Organizer
      2023年度東海ニューフロンティアワークショップ(NFRW)・東海地区若手チャプタージョイントワークショップ
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Strip-Width-Dependent Spectral Responsivity in a Waveguide Photodetector of Ge by Selective-Area Chemical Vapor Deposition on Si2023

    • Author(s)
      Shohei Kaneko, Jose A. Piedra-Lorenzana, Keisuke Yamane, Junichi Fujikata, and Yasuhiko Ishikawa
    • Organizer
      2023 International Conference on Silicon Epitaxy and Heterostructures / International SiGe Technology and Device Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A Near-Infrared Pin Photodetector of Strain-Enhanced Ge Layer Epitaxially Grown on a Bonded Si-on-Quartz Wafer2022

    • Author(s)
      M. Kuzutani, S. Furuya, J. A. Piedra Lorenzana, T. Hizawa, and Y. Ishikawa
    • Organizer
      242nd ECS Meeting, 10th International SiGe, Ge, and Related Compounds: Materials, Processing, and Devices Symposium
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CVD Growth and Photonic Device Application of Ge Strip Structure on Si2022

    • Author(s)
      Yasuhiko Ishikawa, Jose A. Piedra-Lorenzana, Takeshi Hizawa, and Junichi Fujikata
    • Organizer
      9th International Symposium on Control of Semiconductor Interfaces (ISCSI-IX)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High Performance Si Photonics Devices and InP/EO Polymer Hybrid Optical Modulator for Data Communication and Computing2022

    • Author(s)
      Junichi Fujikata, Masataka Noguchi, Tomoki Sakuma, Daisuke Okamoto, Yasuhiko Ishikawa, and Shiyoshi Yokoyama
    • Organizer
      27th OptoElectronics and Communications Conference / International Conference on Photonics in Switching and Computing 2022 (OECC/PSC 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Ge細線構造を用いた導波路受光器における受光スペクトルの温度依存性2022

    • Author(s)
      金子尚平、Jose A.Piedra-Lorenzana、藤方潤一、石川靖彦
    • Organizer
      Photonic Device Workshop 2022 (PDW2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 貼り合わせSi-on-quartzウエハ上ひずみ増強Ge層を用いたフリースペース近赤外pin受光器2022

    • Author(s)
      葛谷樹矢、古家聖輝、Jose A. Piedra-Lorenzana、飛沢健、石川靖彦
    • Organizer
      Photonic Device Workshop 2022 (PDW2022)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] データ伝送およびコンピューティングに向けた高性能SiフォトニクスデバイスおよびInP/EOポリマーハイブリッド光変調器2022

    • Author(s)
      藤方潤一、野口将高、佐久間智己、岡本大典、石川靖彦、横山士吉
    • Organizer
      電子情報通信学会ソサイエティ大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Ge細線構造を用いた光デバイス2022

    • Author(s)
      石川靖彦
    • Organizer
      電子情報通信学会光集積及びシリコンフォトニクス特別専門研究委員会(PICS)研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 貼り合わせSi-on-quartzウエハ上ひずみ増強Ge層を用いた近赤外pin受光器2022

    • Author(s)
      葛谷樹矢、古家聖輝、Jose A. Piedra-Lorenzana、飛沢健、石川靖彦
    • Organizer
      電子情報通信学会光集積及びシリコンフォトニクス特別専門研究委員会(PICS)研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Selective Epitaxy of Submicron Ge Wire Structures for Photodetectors and Optical Modulators in Si Photonics2021

    • Author(s)
      Yasuhiko Ishikawa, Kyosuke Noguchi, Mayu Tachibana, Kazuki Kawashita, Ryota Oyamada, Kazumi Motomura, Shuhei Sonoi, Riku Katamawari, and Takeshi Hizawa
    • Organizer
      240th ECS Meeting, G02 Semiconductor Process Integration 12
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Near-infrared pin Photodiode of Strain-enhanced Ge Layer on Si2021

    • Author(s)
      葛谷樹矢、園井柊平、石川靖彦
    • Organizer
      Photonic Device Workshop 2021 (PDW2021)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 引張ひずみを増強したSi上Ge層を用いた近赤外pin受光器2021

    • Author(s)
      葛谷樹矢、園井柊平、石川靖彦
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] サブミクロン細線構造を用いたSi上Geエピタキシャル層のバンドギャップ制御2021

    • Author(s)
      下川愛実、園井柊平、片廻陸、石川靖彦
    • Organizer
      電子情報通信学会電子デバイス研究会(ED)/シリコンデバイス・材料研究会(SDM)/電子部品・材料研究会(CPM)合同研究会
    • Related Report
      2021 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      https://www.int.ee.tut.ac.jp/photon/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://www.int.ee.tut.ac.jp/photon/

    • Related Report
      2021 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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