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2013 Fiscal Year Annual Research Report

ナノシリコンの燐光特性制御と光デバイスへの応用

Research Project

Project/Area Number 23560388
Research InstitutionNagoya University

Principal Investigator

BERNARD Gelloz  名古屋大学, 工学(系)研究科(研究院), 特任准教授 (40343157)

Keywordsナノシリコン / 燐光 / 光デバイス / 青色発光
Research Abstract

(1) 紫外発光と燐光の発生源およびメカニズムの究明: 酸化ポーラスシリコンの青色燐光と前年発見された狭帯域UV(275-290 nm)光の発生源を特定するため,酸化膜とシリコンナノ結晶のそれぞれの役割を調べた.純粋なポーラスガラスについても光学特性を調べた.酸化されたポーラスシリコンとポーラスガラスは両方とも青色燐光およびUV光を発光する光学特性を示す.紫外線バンドは非常に小さなストークスシフトと非常に狭い吸収帯を伴うことが分かった.表面状態がUV発光強度に劇的な影響を与える.UV帯域はポーラス材料のポーア表面上の水関連の分子種に起因することが判明した.実験結果は,シリコンナノ結晶がUV帯域と青色燐光の発光過程に関与していないことを示した.青色燐光は,ポーラス酸化物中の酸化に関連した分子種に起因する可能性が高い.
(2)EL素子の開発と高効率化: Pn接合を導入したEL素子化を行った.表面化学修飾処理および導電性材料の堆積による非発光界面欠陥,キャリアトラップ密度低減,ナノシリコン層の直列抵抗の低減などを行った.キャリアトラップ密度低減とポーラスシリコンのポーア内部への金属電極の堆積により非常に大きい電流密度の増加が見出された.次のステップは光出力効率の最適化である.
(3) フォトニクス応用: 開発した燐光ナノシリコン層のフォトニック機能は光導電と光電効果の観点から実証した.ポーラスシリコン膜用いて大きな開回路電圧を得た.また,有機表面変形ナノ結晶シリコン膜細胞についても研究を行った.その変形により再現性と可逆性などの光電効果が大幅に改善された.

  • Research Products

    (21 results)

All 2014 2013

All Journal Article (6 results) Presentation (14 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] Ultraviolet and Long-Lived Blue Luminescence of Oxidized Nano-Porous Silicon and Pure Nano-Porous Glass2014

    • Author(s)
      B. Gelloz, R. Mentek, N. Koshida
    • Journal Title

      ECS Journal of Solid State Science and Technology

      Volume: 3 (5) Pages: R83-R88

    • DOI

      10.1149/2.022405jss

  • [Journal Article] Electro-Deposition of Thin Si and Ge Films Based on Ballistic Hot Electron Injection2014

    • Author(s)
      N. Koshida, A. Kojima, T. Ohta, R. Mentek, B. Gelloz, N. Mori, J. Shirakashi
    • Journal Title

      ECS Solid State Letters

      Volume: 3 (5) Pages: P57-P60

    • DOI

      10.1149/2.002405ssl

  • [Journal Article] Supercritical fluid deposition of copper into mesoporous silicon2013

    • Author(s)
      L. Jin, E. Kondoh, T. Oya, B. Gelloz
    • Journal Title

      Thin Solid Films

      Volume: 545 Pages: 357-360

    • DOI

      10.1016/j.tsf.2013.08.034

  • [Journal Article] Optical and spectroscopic properties of Eu-doped tellurite glasses and glass ceramics2013

    • Author(s)
      W. Stambouli, H. Elhouichet, B. Gelloz, M. Férid
    • Journal Title

      Journal of Luminescence

      Volume: 138 Pages: 201-208

    • DOI

      10.1016/j.jlumin.2013.01.019

  • [Journal Article] Ballistic Electron Effects in Nanosilicon and Their Applications2013

    • Author(s)
      N. Koshida, N. Ikegami, A. Kojima, R. Mentek, B. Gelloz
    • Journal Title

      ECS Transactions

      Volume: 53 Pages: 95-102

    • DOI

      10.1149/05304.0095ecst

  • [Journal Article] Ultraviolet and Long-lived Blue Luminescence of Oxidized Porous Silicon2013

    • Author(s)
      B. Gelloz, R. Mentek, N. Koshida
    • Journal Title

      ECS Transactions

      Volume: 53 Pages: 103-111

    • DOI

      10.1149/05304.0103ecst

  • [Presentation] Growth of nanorod on porous silicon by high-press water-vapor annealing2014

    • Author(s)
      由井寛之,B. Gelloz,金蓮花
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学
    • Year and Date
      20140319-20140319
  • [Presentation] Photoelectrical characterization of organically surface-modified nanocrystalline silicon membrane cells2014

    • Author(s)
      R. Mentek, B. Gelloz, D. Hippo, and N. Koshida
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学
    • Year and Date
      20140318-20140318
  • [Presentation] Electrical characteristics of microporous silicon filled with copper2014

    • Author(s)
      大矢敏史,近藤英一,B. Gelloz,金蓮花
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学
    • Year and Date
      20140318-20140318
  • [Presentation] Polarization signature and optical modeling of roughened iron surface2014

    • Author(s)
      山口晃司,近藤英一,B. Gelloz,金蓮花
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      青山学院大学
    • Year and Date
      20140317-20140317
  • [Presentation] Photovoltaic Effect in Nanocrystalline Porous Silicon Membrane Cells with Large Open-Circuit Voltage2014

    • Author(s)
      R. Mentek, D. Hippo, B. Gelloz, and N. Koshida
    • Organizer
      9th Int. Conf. On Porous Semiconductors Science and Technology
    • Place of Presentation
      Alicante, Spain
    • Year and Date
      20140313-20140313
  • [Presentation] Application of Ballistic Hot Electron Emission from Nanocrystalline Porous Silicon to Thin Film Deposition of Si, Ge, and SiGe2014

    • Author(s)
      R. Suda, M. Yagi, A. Kojima, R. Mentek, B. Gelloz, N. Mori, J. Shirakashi, and N. Koshida
    • Organizer
      9th Int. Conf. On Porous Semiconductors Science and Technology
    • Place of Presentation
      Alicante, Spain
    • Year and Date
      20140310-20140310
  • [Presentation] Large open-circuit-photovoltage effect in nanocrystalline silicon membrane cells2013

    • Author(s)
      R. Mentek, B. Gelloz, O. Hippo and N. Koshida
    • Organizer
      第74回応用物理学会学秋季術講演会
    • Place of Presentation
      松山大
    • Year and Date
      20130918-20130918
  • [Presentation] Blue and UV Luminescence Properties of Oxidized Nanosilicon and Pure Porous Glass2013

    • Author(s)
      B. Gelloz, R. Mentek and N. Koshida
    • Organizer
      第74回応用物理学会学秋季術講演会
    • Place of Presentation
      松山大
    • Year and Date
      20130916-20130916
  • [Presentation] Thin Silicon Film Deposition by Operation of Nanosilicon Electron Emitter in SiCl4 Solution2013

    • Author(s)
      N. Koshida, N. Ikegami, A. Kojima, R. Mentek, B. Gelloz, and N. Mori
    • Organizer
      8th International Conference on Silicon Epitaxy and Heterostructures, ICSI-8
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      20130602-20130606
    • Invited
  • [Presentation] Scattering light pattern of rough surface2013

    • Author(s)
      K. Yamaguchi,A. Muhammad,B. Gelloz,E. Kondoh, and L. Jin
    • Organizer
      The 6th International Conference on Spectroscopic Ellipsometry
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      20130530-20130530
  • [Presentation] Large open-circuit-voltage photovoltaic effect in nanocrystalline silicon layers2013

    • Author(s)
      R. Mentek, B. Gelloz, O. Hippo, N. Koshida
    • Organizer
      2013 Int. Conf. on Solid State Devices and Materials
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2013-09-27
  • [Presentation] Interrelated Ultraviolet and Long-lived Blue luminescence bands of Oxidized Nanocrystalline Porous Silicon2013

    • Author(s)
      B. Gelloz, R. Mentek, N. Koshida
    • Organizer
      2013 Int. Conf. on Solid State Devices and Materials
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2013-09-26
  • [Presentation] Ballistic Electron Effects in Nanosilicon and Their Applications2013

    • Author(s)
      N. Koshida, N. Ikegami, A. Kojima, R. Mentek, B. Gelloz
    • Organizer
      ECS Spring Meeting
    • Place of Presentation
      Toronto, Canada
    • Year and Date
      2013-05-14
  • [Presentation] Ultraviolet and long-lived Blue Luminescence of oxidized Porous Silicon2013

    • Author(s)
      B. Gelloz, R. Mentek, N. Koshida
    • Organizer
      ECS Spring Meeting
    • Place of Presentation
      Toronto, Canada
    • Year and Date
      2013-05-14
  • [Book] Nanostructured Semiconductors: from basic research to applications2013

    • Author(s)
      N. Koshida and B. Gelloz
    • Total Pages
      619-653
    • Publisher
      Pan Stanford Publishing

URL: 

Published: 2015-05-28  

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