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Growth of GaN-based devices on metal and glass substrates using layered BN

Research Project

Project/Area Number 18H01886
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 30010:Crystal engineering-related
Research InstitutionHirosaki University

Principal Investigator

Kobayashi Yasuyuki  弘前大学, 理工学研究科, 教授 (90393727)

Co-Investigator(Kenkyū-buntansha) 岡本 浩  弘前大学, 理工学研究科, 教授 (00513342)
中澤 日出樹  弘前大学, 理工学研究科, 准教授 (90344613)
小豆畑 敬  弘前大学, 理工学研究科, 准教授 (20277867)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
Fiscal Year 2021: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywords半導体 / 結晶成長 / 半導体物性 / 六方晶窒化ホウ素 / 分子線エピタキシー / 窒化物半導体 / 窒化ホウ素 / ガラス基板 / BN / GaN / MBE / 金属基板
Outline of Final Research Achievements

We grew hexagonal boron nitride (h-BN) thin films on glass substrates by plasma-assisted molecular beam epitaxy (MBE) and determined the thicknesses of the films (39 and 2 nm) by fitting their measured X-ray reflectance with a two-layer model. The 39-nm-thick film showed a clear peak of Raman active mode. The 39- and 2-nm-thick films exhibited a clear peak of infrared active mode. Atomic force microscopy images revealed that both h-BN films had atomically smooth surfaces. These results suggest that MBE can grow h-BN thin films on glass substrates.

Academic Significance and Societal Importance of the Research Achievements

ガラス基板は、GaN系デバイス構造に使われるサファイア基板と比較して、大面積化が可能であり、経済的に安価であり、GaN系デバイス構造の適用範囲を大きく広げると期待される。しかしながら、ガラス基板上に単結晶GaN系デバイス構造を成長することは、一般的に困難である。今回、我々はそのガラス基板上に分子線エピタキシー法により、六方晶窒化ホウ素(h-BN)薄膜が成長することを見出した。今後、このh-BN薄膜をバッファ層としてこのh-BNバッファ層上に単結晶GaNデバイス構造が成長する可能性がある。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (7 results)

All 2022 2021 2020 2019

All Presentation (7 results) (of which Int'l Joint Research: 2 results,  Invited: 2 results)

  • [Presentation] Plasma-assisted MBE Grown h-BN Thin Films on Glass Substrates2022

    • Author(s)
      N. Hatakeyama, T. Azuhata, H. Nakazawa, H. Okamoto, M. Hiroki, K. Kumakura, and Y. Kobayashi
    • Organizer
      14th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MOVPE and MBE Growth of GaN-based Heterostructures on h-BN Release Layers2021

    • Author(s)
      Y. Kobayashi, M. Hiroki, and K. Kumakura
    • Organizer
      Epitaxy on 2D materials for layer release and their applications
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] MBEによるガラス基板上h-BN薄膜の膜厚評価2021

    • Author(s)
      畠山直樹、小豆畑敬、中澤日出樹、岡本浩、廣木正伸、熊倉一英、小林康之
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] MBEによるAlN/h-BNバッファ層上GaN薄膜のエピタキシャル成長2020

    • Author(s)
      原田文矢、中澤日出樹、岡本 浩、廣木正伸、熊倉一英、小林康之
    • Organizer
      2020年第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 六方晶窒化ホウ素リリース層上の窒化物半導体成長とその応用2020

    • Author(s)
      小林康之、廣木正伸、熊倉一英
    • Organizer
      令和元年度日本表面真空学会東北・北海道支部学術講演会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ガラス基板上MBE成長BN薄膜のラマン散乱2019

    • Author(s)
      小林康之、小豆畑敬、中澤日出樹、岡本浩、廣木正伸、熊倉一英
    • Organizer
      2019年第80回応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] MBEによるガラス基板上BN薄膜成長2019

    • Author(s)
      小林康之、中田啓一、中澤日出樹、岡本浩、廣木正伸、熊倉一英
    • Organizer
      2019年第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report

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Published: 2018-04-23   Modified: 2023-01-30  

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