Study on photonic-crystal effects on photovoltaic materials towards efficient photovoltaic devices

• Project/Area Number: 23686050
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Electronic materials/Electric materials
• Research Institution: Osaka University
• Principal Investigator: FUJITA Masayuki 大阪大学, 基礎工学研究科, 准教授 (40432364)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥26,780,000 (Direct Cost: ¥20,600,000、Indirect Cost: ¥6,180,000); Fiscal Year 2013: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2012: ¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000); Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
• Keywords: フォトニック結晶 / 光電変換材料 / 光電変換素子 / 光吸収 / 太陽電池 / 光捕獲 / 光閉じ込め

Research Abstract

We demonstrate an enhancement of the optical absorption and photoelectric-conversion efficiency of an ultrathin (50 nm) silicon active-layer photodetecting device using a two-dimensional photonic crystal. We show both experimentally and with simulations that the incident-light absorption within the active layer is enhanced by optical-resonance effects at the photonic band edge. We also find that a photonic crystal with deeper holes can lead to an even larger absorption enhancement due to better Q-factor matching between the photonic band-edge modes and the intrinsic material absorption. The experimentally observed photocurrent of the fabricated photonic crystal sample is increased by a factor of around 20 at the photonic band-edge wavelength relative to that of a control sample without the photonic crystal which is attributed to the improved Q matching. We also investigate broadband optical absorption enhancement in thin silicon photovoltaic devices by photonic crystal.

Research Products

• [Journal Article] Enhancement of broadband optical absorption in photovoltaic devices by band-edge effect of photonic crystals (2013)
  • Author(s): Y. Tanaka, Y. Kawamoto, M. Fujita, and S. Noda
  • Journal Title: Opt. Express Volume: vol. 21, no. 17 Pages: 20111-20118
• [Journal Article] Nanocavity brightens silicon (2013)
  • Author(s): M. Fujita
  • Journal Title: Nature Photon Volume: vol. 7, no. 4 Pages: 264-265
• [Journal Article] Nanocavity brightens silicon (2013)
  • Author(s): M. Fujita
  • Journal Title: Nature Photonics Volume: 7 Issue: 4 Pages: 264-265
  • DOI: 10.1038/nphoton.2013.65
  • Peer Reviewed
• [Journal Article] Enhancement of broadband optical absorption in photovoltaic devices by band-edge effect of photonic crystals (2013)
  • Author(s): Y. Tanaka, Y. Kawamoto, M. Fujita, and S. Noda
  • Journal Title: Optics Express Volume: 21 Issue: 17 Pages: 20111-20118
  • DOI: 10.1364/oe.21.020111
  • Peer Reviewed
• [Journal Article] Enhancement of photocurrent in ultrathin active-layer photodetecting devices with photonic crystals (2012)
  • Author(s): H. Shigeta, M. Fujita, Y. Tanaka, A. Oskooi, H. Ogawa, Y. Tsuda, and S. Noda
  • Journal Title: Appl. Phys. Lett Volume: vol. 101, no. 16
• [Journal Article] Enhancement of photocurrent in ultrathin active-layer photodetecting devices with photonic crystals (2012)
  • Author(s): H. Shigeta, M. Fujita, Y. Tanaka, A. Oskooi, H. Ogawa, Y. Tsuda, and S. Noda
  • Journal Title: Applied Physics Letters Volume: 101 Issue: 16 Pages: 1611031-4
  • DOI: 10.1063/1.4759149
  • Peer Reviewed
• [Presentation] フォトニック結晶を導入したµc-Si太陽電池の特性評価 (2014)
  • Author(s): Menaka De Zoysa,石崎賢司,梅田尚実,田中良典,藤田奨也,川本洋輔,重田博昭,冨士田誠之,野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原 (no. 18p-E16-5)
• [Presentation] フォトニック結晶を有するµc-Si太陽電池実構造の光吸収の理論解析 (2014)
  • Author(s): 田中良典,川本洋輔,石崎賢司,Menaka De Zoysa,梅田尚実,藤田奨也,浅野卓,重田博昭,冨士田誠之,野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原 (no. 18p-E16-4)
• [Presentation] フォトニック結晶を導入した微結晶シリコン太陽電池の作製 (2014)
  • Author(s): 梅田尚実,Menaka De Zoysa,石崎賢司,田中良典,川本洋輔,藤田奨也,重田博昭,冨士田誠之,野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原 (no. 18p-E16-3)
• [Presentation] フォトニック結晶を用いたスーパーストレート型薄膜シリコン太陽電池の検討 (2014)
  • Author(s): 重田博昭,田中良典,冨士田誠之,石崎賢司,Menaka De Zoysa,野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原 (no. 18p-E16-1)
• [Presentation] フォトニック結晶構造を有する微結晶シリコン太陽電池の基礎検討 (2014)
  • Author(s): 石崎賢司,Menaka De Zoysa,田中良典,梅田尚実,川本洋輔,藤田奨也,重田博昭,冨士田誠之,野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原 (no. 18p-E12-1)
• [Presentation] A photonic-crystal terahertz-wave absorber and its application to terahertz communications (2014)
  • Author(s): R. Kakimi, M. Fujita, M. Nagai, M. Ashida and T. Nagatsuma
  • Organizer: The 4th Int. Sympo. THz NanoSci
  • Place of Presentation: Suita (TeraNano4)
• [Presentation] フォトニック結晶上への微結晶シリコン形成に関する検討 (2013)
  • Author(s): Menaka De Zoysa,石崎賢司,川本洋輔,梅田尚実,田中良典,浅野卓,重田博昭,冨士田誠之,野田進
  • Organizer: 第74回秋季応物学会
  • Place of Presentation: 京田辺 (no. 18a-A3-7)
• [Presentation] Capturing a terahertz wave by photonic-crystal slab (2013)
  • Author(s): R. Kakimi, M. Fujita, M. Nagai, M. Ashida and T. Nagatsuma
  • Organizer: 第32回電子材料シンポジウム(EMS32)
  • Place of Presentation: 守山
• [Presentation] Enhancement of optical absorption in solar cells by band-edge effect of photonic crystals. I−Formation of multiple bandedges− (2013)
  • Author(s): Y. Tanaka, Y. Kawamoto, M. Fujita and S. Noda
  • Organizer: The 10th Conf. Laser and Electro-Optics Pacific Rim (CLEO-PR2013)
  • Place of Presentation: Kyoto (ThP3-1)
• [Presentation] Terahertz-wave absorbers using a photonic crystal slab (2013)
  • Author(s): R. Kakimi, M. Fujita, M. Nagai, M. Ashida and T. Nagatsuma
  • Organizer: The 10th Conf. Laser and Electro-Optics Pacific Rim (CLEO-PR2013)
  • Place of Presentation: Kyoto (WC4-3)
• [Presentation] Capturing and absorbing a terahertz wave by a photonic-crystal slab (2013)
  • Author(s): R. Kakimi, M. Fujita, M. Nagai, M. Ashida and T. Nagatsuma
  • Organizer: 6th Global Symposium on Millimeter Wave 2013 (GSMM2013)
  • Place of Presentation: Sendai (no. M4-3)
• [Presentation] フォトニック結晶スラブを用いたテラヘルツ波吸収体 (2013)
  • Author(s): 垣見亮磨, 冨士田誠之, 永井正也, 芦田昌明, 永妻忠夫
  • Organizer: 第60回春季応物学会
  • Place of Presentation: 厚木 (no. 29p-D1-7)
• [Presentation] フォトニック結晶のバンド端共鳴効果による広帯域光吸収増大効果の実験的検討 (2013)
  • Author(s): 川本洋輔, Menaka De Zoysa, 石崎賢司, 梅田尚実, 田中良典, 重田博昭, 冨士田誠之, 浅野卓, 野田進
  • Organizer: 第60回春季応物学会
  • Place of Presentation: 厚木 (no. 29a-C1-1)
• [Presentation] Enhancement of optical absorption in solar cells by band-edge effect of photonic crystals. I-Formation of multiple bandedges- (2013)
  • Author(s): Y. Tanaka, Y. Kawamoto, M. Fujita and S. Noda
  • Organizer: The 10th Conf. Laser and Electro-Optics Pacific Rim
  • Place of Presentation: Kyoto
• [Presentation] フォトニック結晶のバンド端共鳴効果による広帯域光吸収増大効果の実験的検討 (2013)
  • Author(s): 川本洋輔, Menaka De Zoysa, 石崎賢司, 梅田尚実, 田中良典, 重田博昭, 冨士田誠之, 浅野卓, 野田進,
  • Organizer: 第60回春季応用物理学会
  • Place of Presentation: 厚木
• [Presentation] Photocurrent enhancement in ultrathin silicon by the photonic band-edge effect (2012)
  • Author(s): M. Fujita, H. Shigeta, Y. Tanaka, A. Oskooi, H. Ogawa, Y. Tsuda and S. Noda
  • Organizer: IEEE Photonics Conference 2012 (IPC2012)
  • Place of Presentation: Burlingame (no. MO2)
  • Year and Date: 2012-09-24
• [Presentation] 光起電力素子の光電変換効率増大に向けたフォトニック結晶共振作用の最適化(IV) (2012)
  • Author(s): 田中良典, Ardavan Oskooi, 冨士田誠之, 重田博昭, 原潤一, 宮西晋太郎, 野田進
  • Organizer: 2012年春季第59回応用物理学関係連合講演会
  • Place of Presentation: 早稲田大学早稲田キャンパス
  • Year and Date: 2012-03-16
• [Presentation] 光起電力素子の光電変換効率増大に向けたフォトニック結晶共振作用の最適化(VI)～超格子構造の導入～ (2012)
  • Author(s): 田中良典, 川本洋輔, Ardavan Oskooi, 士田誠之, 重田博昭, 野田進
  • Organizer: 第73回秋季応物学会
  • Place of Presentation: 松山 (no. 13p-B1-15)
• [Presentation] Enhancement of light emission and absorption in silicon photonic crystals (2012)
  • Author(s): M. Fujita, Y. Tanaka and S. Noda
  • Organizer: 2012 Material Research Society Fall Meeting & Exhibit (MRS Fall 2012)
  • Place of Presentation: Boston (no. DD11.01)
• [Presentation] Trapping a terahertz wave in a photonic-crystal slab (2012)
  • Author(s): R. Kakimi, M. Fujita, M. Nagai, M. Ashida and T. Nagatsuma
  • Organizer: IEEE Photonics Conference 2012 (IPC2012)
  • Place of Presentation: Burlingame (no. WQ5)
• [Presentation] 光起電力素子の光電変換効率増大に向けたフォトニック結晶共振作用の最適化(IV) (2012)
  • Author(s): 田中良典, Ardavan Oskooi, 冨士田誠之, 重田博昭, 原潤一, 宮西晋太郎, 野田進
  • Organizer: 第59回春季応物学会
  • Place of Presentation: 東京 (no. 15p-E-16)
• [Presentation] Photocurrent enhancement in ultrathin silicon by the photonic band-edge effect (2012)
  • Author(s): M. Fujita, H. Shigeta, Y. Tanaka, A. Oskooi, H. Ogawa, Y. Tsuda and S. Noda
  • Organizer: IEEE Photonics Conference 2012
  • Place of Presentation: Burlingame
• [Presentation] Enhancement of light emission and absorption in silicon photonic crystals (2012)
  • Author(s): M. Fujita, Y. Tanaka and S. Noda
  • Organizer: 2012 Material Research Society Fall Meeting & Exhibit
  • Place of Presentation: Boston
  • Invited
• [Presentation] 光起電力素子の光電変換効率増大に向けたフォトニック結晶共振作用の最適化(VI)-超格子構造の導入- (2012)
  • Author(s): 田中良典, 川本洋輔, Ardavan Oskooi, 冨士田誠之, 重田博昭, 野田進
  • Organizer: 第73回秋季応用物理学会
  • Place of Presentation: 松山
• [Presentation] Enhancement of optical absorption in solar cells by band-edge effect of photonic crystals. I −Formation of multiple bandedges−
  • Author(s): Y. Tanaka, Y. Kawamoto, M. Fujita and S. Noda
  • Organizer: The 10th Conf. Laser and Electro-Optics Pacific Rim
  • Place of Presentation: Kyoto
• [Presentation] フォトニック結晶構造を有する微結晶シリコン太陽電池の基礎検討
  • Author(s): 石崎賢司，MenakaDeZoysa，田中良典，梅田尚実，川本洋輔，藤田奨也，重田博昭，冨士田誠之，野田進
  • Organizer: 第61回春季応物学会,
  • Place of Presentation: 相模原
• [Presentation] フォトニック結晶を用いたスーパーストレート型薄膜シリコン太陽電池の検討
  • Author(s): 重田博昭，田中良典，冨士田誠之，石崎賢司，Menaka De Zoysa，野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原
• [Presentation] フォトニック結晶を導入した微結晶シリコン太陽電池の作製
  • Author(s): 梅田尚実，MenakaDeZoysa，石崎賢司，田中良典，川本洋輔，藤田奨也，重田博昭，冨士田誠之，野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原
• [Presentation] フォトニック結晶を有するµc-Si太陽電池実構造の光吸収の理論解析
  • Author(s): 田中良典，川本洋輔，石崎賢司，MenakaZoysa，梅田尚実，藤田奨也，浅野卓，重田博昭，冨士田誠之，野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原
• [Presentation] フォトニック結晶を導入したµc-Si太陽電池の特性評価
  • Author(s): MenakaDeZoysa，石崎賢司，梅田尚実，田中良典，藤田奨也，川本洋輔，重田博昭，冨士田誠之，野田進
  • Organizer: 第61回春季応物学会
  • Place of Presentation: 相模原
• [Book] ナノインプリント技術 「フォトニックナノ構造デバイスへの応用」 (2014)
  • Author(s): 野田進，冨士田誠之（分担）
  • Total Pages: 14
  • Publisher: 電子情報通信学会