Control of band structure of multiple band gap semiconductor and its application to high-efficiency solar cell

• Project/Area Number: 20560008
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials science/Crystal engineering
• Research Institution: University of Yamanashi
• Principal Investigator: NABETANI Yoichi University of Yamanashi, 大学院・医学工学総合研究部, 准教授 (30283196)
• Co-Investigator(Kenkyū-buntansha): MATSUMOTO Takashi 山梨大学, 大学院・医学工学総合研究部, 教授 (00020503)
• Co-Investigator(Renkei-kenkyūsha): MURANAKA Tsutomu 山梨大学, 大学院・医学工学総合研究部, 准教授 (20374788)
• Project Period (FY): 2008 – 2010
• Project Status: Completed (Fiscal Year 2010)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 太陽電池 / 半導体 / 高効率太陽電池 / 半導体物性 / 結晶工学 / 光物性 / 結晶成長

Research Abstract

Sun shine is one of the most important renewable energies. We have grown semiconductors which has an intermediate band gap to increase the efficiency of solar cell. We have shown that the intermediate band gap semiconductors can absorb photons having less energy than band gap and can generate current. The practical solar cells were made and investigated their properties.

Research Products

• [Journal Article] Effects of Ga Doping and Substrate Temperature on Electrical Properties of ZnO Transparent Conducting Films Grown by Plasma-Assisted Deposition (2011)
  • Author(s): T.Matsumoto, 他14名
  • Journal Title: Japanese Journal of Applied Physics vol.50
  • NAID: 210000070524
  • Peer Reviewed
• [Journal Article] Temperature dependence of the band gap of ZnSe_<1-x>O_x (2009)
  • Author(s): R.Broesler, 他5名
  • Journal Title: Applied Physics Letters vol.95 Pages: 151907-151907
  • Peer Reviewed
• [Journal Article] Temperature dependence of the band gap of ZnSe_<1-x>O_x (2009)
  • Author(s): R.Broesler
  • Journal Title: Applied Physics Letters 95 Pages: 151907-151907
  • Peer Reviewed
• [Presentation] MBE成長したZnTeO混晶の構造および光学特性 (2011)
  • Author(s): 平松和也
  • Organizer: 第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2011-03-27
• [Presentation] 局在準位を有する半導体ZnTeO混晶の光導電性評価 (2011)
  • Author(s): 三枝直樹
  • Organizer: 第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学
  • Year and Date: 2011-03-27
• [Presentation] MBE成長したZnTeO混晶の構造および光学特性 (2011)
  • Author(s): 鍋谷暢一
  • Organizer: 第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学(神奈川県)
  • Year and Date: 2011-03-27
• [Presentation] 局在順位を有する半導体ZnTeO混晶の光導電性評価 (2011)
  • Author(s): 鍋谷暢一
  • Organizer: 第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学(神奈川県)
  • Year and Date: 2011-03-27
• [Presentation] Zn(C_6H_15O_3)_2をZn原料として用いたZnOのMOVPE成長 (2011)
  • Author(s): 鍋谷暢一
  • Organizer: 第58回応用物理学関係連合講演会
  • Place of Presentation: 神奈川工科大学(神奈川県)
  • Year and Date: 2011-03-25
• [Presentation] MBE成長したZnTeO混晶の構造評価および0組成の導出 (2010)
  • Author(s): 平松和也
  • Organizer: 結晶工学分科会2010年年末講演会
  • Place of Presentation: 学習院大学
  • Year and Date: 2010-12-17
• [Presentation] 局在準位を有する半導体ZnTeO混晶の光導電性評価 (2010)
  • Author(s): 三枝直樹
  • Organizer: 結晶工学分科会2010年年末講演会
  • Place of Presentation: 学習院大学
  • Year and Date: 2010-12-17
• [Presentation] Zn(C_6H_15O_3)_2をZn原料として用いたZnOのMOVPE成長と物性評価 (2010)
  • Author(s): 鍋谷暢一
  • Organizer: 応用物理学会結晶工学分科会年末講演会
  • Place of Presentation: 学習院大学(東京都)
  • Year and Date: 2010-12-17
• [Presentation] MBE成長したZnTeO混晶の構造評価およびO組成の導出 (2010)
  • Author(s): 鍋谷暢一
  • Organizer: 応用物理学会結晶工学分科会年末講演会
  • Place of Presentation: 学習院大学(東京都)
  • Year and Date: 2010-12-17
• [Presentation] 局在準位を有する半導体ZnTeO混晶の光導電効果 (2010)
  • Author(s): 鍋谷暢一
  • Organizer: 応用物理学会結晶工学分科会年末講演会
  • Place of Presentation: 学習院大学(東京都)
  • Year and Date: 2010-12-17
• [Presentation] XRD characterization of ZnO layers grown on GaAs(111), sapphire c-plane and a-plane substrates by Plasma-Assisted MBE (2009)
  • Author(s): T.Muranaka
  • Organizer: 14th International Conference on II-VI Compounds
  • Place of Presentation: St.Petersburg.
  • Year and Date: 2009-08-27
• [Presentation] Epitaxial growth and characterization of ZnSTeO quaternary alloys (2009)
  • Author(s): Y.Nabetani
  • Organizer: 14th International Conference on II-VI Compounds
  • Place of Presentation: St.Petersburg.
  • Year and Date: 2009-08-25
• [Presentation] Epitaxial Growth and Characterization of ZnSTeO Quaternary Alloys (2009)
  • Author(s): Y.Nabetani
  • Organizer: 14^<th> International Conference on II-VI Compounds
  • Place of Presentation: サンクトペテルブルク(ロシア)
  • Year and Date: 2009-08-25