High efficiency Cu2ZnSnS4 thin film solar cells based on semiconductor hetero-junction control

2013 Fiscal Year Final Research Report

• Project/Area Number: 23686056
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Electron device/Electronic equipment
• Research Institution: Ritsumeikan University
• Principal Investigator: MINEMOTO Takashi 立命館大学, 理工学部, 准教授 (80373091)
• Project Period (FY): 2011-04-01 – 2014-03-31
• Keywords: 太陽電池 / 半導体 / 結晶成長

Research Abstract

Cu2ZnSnS4 (CZTS) thin films with good surface morphology for the absorber of solar cells have been successfully fabricated by composition control of Cu-Zn-Sn precursor layers. The solar cell with ZnO:Al/ZnO/CdS/CZTS/Mo/glass structure produced 2% efficiency.

Research Products

• [Journal Article] Improvement of Cu_2ZnSnS_4 thin film morphology using CuZnSnO precursor fabricated by sputtering (2013)
  • Author(s): R. Ishino, K. Fukushima, T. Minemoto
  • Journal Title: Current Applied Physics Volume: 13 Pages: 1861-1864
  • DOI: 10.1016/j.cap.2013.06.021
  • Peer Reviewed
• [Journal Article] Crystal Quality Improvement of CuInS_2 Thin Film by Two Step Fabrication Method with Bismuth addition (2013)
  • Author(s): S. Fukamizu, D. Hironiwa, T. Minemoto
  • Journal Title: Applied Mechanics and Materials Volume: 372 Pages: 563-566
  • DOI: 10.4028/www.scientific.net/AMM.372.563
  • Peer Reviewed
• [Journal Article] Zn(O,S):Al Films Prepared by Radio Frequency Magnetron Sputtering for Transparent Electrode (2013)
  • Author(s): J. Julayhi, T. Minemoto
  • Journal Title: Applied Mechanics and Materials Volume: 372 Pages: 567-570
  • DOI: 10.4028/www.scientific.net/AMM.372.567
  • Peer Reviewed
• [Journal Article] Grain boundary character change of Cu(In,Ga)Se_2 thin film with high temperature deposition (2013)
  • Author(s): T. Higuchi, N. Usami, T. Minemoto
  • Journal Title: Phys. Status Solidi C Volume: 10 Pages: 1035-1037
  • DOI: 10.1002/pssc.201200833
  • Peer Reviewed
• [Journal Article] Bufferless Cu(In,Ga)Se_2 solar cells using Zn(O,S):Al transparent electrode (2013)
  • Author(s): J. Julayhi, T. Minemoto
  • Journal Title: Phys. Status Solidi C Volume: 10 Pages: 1026-1030
  • DOI: 10.1002/pssc.201200802
  • Peer Reviewed
• [Journal Article] Buffer-less Cu(In,Ga)Se_2 solar cells by band offset control using novel transparent electrode (2013)
  • Author(s): T. Minemoto, J. Julayhi
  • Journal Title: Current Applied Physics Volume: 13 Pages: 103-106
  • DOI: 10.1016/j.cap.2012.06.019
  • Peer Reviewed
• [Journal Article] Interfacial layer formation at ZnO/CdS interface (2012)
  • Author(s): Y. Abe, A. Komatsu, H. Nohira, K. Nakanishi, T. Minemoto, T. Ohta, H. Takakura
  • Journal Title: Applied Surface Science Volume: 258 Pages: 8090-8093
  • DOI: 10.1016/j.apsusc.2012.04.177
  • Peer Reviewed
• [Journal Article] Optimization of compositional ratio of Zn(O,S) window layer in CuInS_2 solar cells (2012)
  • Author(s): R. Hamazaki, Y. Oda , S. Fukamizu , A. Yamamoto, T. Minemoto, H. Takakura
  • Journal Title: Japanese Journal of Applied Physics Volume: 51 Pages: 10NC10-1-3
  • DOI: 10.1143/JJAP.51.10NC10
  • Peer Reviewed
• [Journal Article] Grain Boundary Character Distribution on the Surface of Cu(In,Ga)Se_2 Thin Film (2011)
  • Author(s): T. Minemoto, Y. Wakisaka, H. Takakura
  • Journal Title: Japanese Journal of Applied Physics Volume: 50 Pages: 031203-1-4
  • DOI: 10.1143/JJAP.50.031203
  • Peer Reviewed
• [Journal Article] Application of sputtered ZnO_<1-x>S_x buffer layer for Cu(In, Ga)Se_2 solar cells (2011)
  • Author(s): A. Okamoto, T. Minemoto, H. Takakura
  • Journal Title: Japanese Journal of Applied Physics Volume: 50 Pages: 04DP10-1-3
  • DOI: 10.1143/JJAP.50.04DP10
  • Peer Reviewed
• [Journal Article] Sputtered ZnO-based buffer layer for band offset control in Cu(In,Ga)Se_2 solar cells (2011)
  • Author(s): T. Minemoto, A. Okamoto, H. Takakura
  • Journal Title: Thin Solid Films Volume: 519 Pages: 7568-7571
  • DOI: 10.1016/j.tsf.2010.12.117
  • Peer Reviewed
• [Presentation] 裏面側に高欠陥密度層をもつCu(In,Ga)Se_2太陽電池の性能シミュレーション (2014)
  • Author(s): 芦田直輝, 田雅, 植垣光, 廣庭大輔, 峯元高志
  • Organizer: 第61回応用物理学関係連合講演会
  • Place of Presentation: 青山学院大学、神奈川県
  • Year and Date: 2014-03-19
• [Presentation] Device Modeling on Optimum Absorber Bandgap Profile of Cu(In,Ga)(S,Se)_2 Solar Cells (2013)
  • Author(s): M. Murata, T. Minemoto
  • Organizer: 23rd International Photovoltaic Science and Engineering Conference
  • Place of Presentation: Taipei (Taiwan)
  • Year and Date: 2013-10-31
• [Presentation] Theoretical analysis of optimum bandgap profile of Cu(In,Ga)Se_2 solar cells with optical and defect properties (2013)
  • Author(s): M. Murata, J. Chantana, D. Hironiwa, K. Aoyagi, N. Kataoka, T. Minemoto
  • Organizer: 2013 International Conference on Solid State Devices and Materials
  • Place of Presentation: Fukuoka (Japan)
  • Year and Date: 2013-09-26
• [Presentation] Research trend and future direction of chalcogenide thin-film solar cells (2013)
  • Author(s): T. Minemoto
  • Organizer: International Renewable and Sustainable Energy Conference 2013
  • Place of Presentation: Ouarzazate (Morocco)
  • Year and Date: 2013-03-06
• [Presentation] Cu-Zn-Sn-O precursor fabricated by sputtering for Cu_2ZnSnS_4 thin film (2012)
  • Author(s): R. Ishino, K. Fukushima, T. Minemoto
  • Organizer: 22nd International Photovoltaic Science and Engineering Conference
  • Place of Presentation: Hangzou (China)
  • Year and Date: 2012-11-07
• [Presentation] Current status and future of chalcogenide thin-film solar cells (2012)
  • Author(s): T. Minemoto
  • Organizer: The 2nd International Conference on CIGS Solar Cells and Electronic Materials
  • Place of Presentation: Taipei (Taiwan)
  • Year and Date: 2012-10-15
• [Presentation] Cu-Zn-Sn-OプリカーサのS化によるCu_2ZnSnS_4薄膜の成長 (2012)
  • Author(s): 石野亮, 福島和宏, 峯元高志
  • Organizer: 第72回応用物理学会学術講演会
  • Place of Presentation: 愛媛大学、愛媛県
  • Year and Date: 2012-09-13
• [Presentation] Optimization of compositional ratio of Zn(O,S) window layer in CuInS_2 solar cells (2011)
  • Author(s): R. Hamazaki, Y. Oda , S. Fukamizu , A. Yamamoto, T. Minemoto, H. Takakura
  • Organizer: 21st International Photovoltaic Science and Engineering Conference
  • Place of Presentation: Hilton Seahawk, Fukuoka
  • Year and Date: 2011-12-02
• [Presentation] Interface engineering on Cu(In,Ga)Se_2 solar cells (2011)
  • Author(s): T. Minemoto
  • Organizer: The 1st International Conference on CIGS Solar Cells and Electronic Materials
  • Place of Presentation: Taipei (Taiwan)
  • Year and Date: 2011-10-14
• [Presentation] Hetero Junction Engineering for High Efficiency Cu(In,Ga)Se_2 Solar Cells (2011)
  • Author(s): T. Minemoto
  • Organizer: 2011 International Conference on Solid State Devices and Materials
  • Place of Presentation: WINC Aichi, Nagoya
  • Year and Date: 2011-09-29
• [Remarks] ホームページ
  • URL: http://www.ritsumei.ac.jp/se/re/takakuralab/
• [Patent(Industrial Property Rights)] 光電変換装置およびその製造方法 (2012)
  • Inventor(s): 福島 和宏、森 俊江、峯 元 高志、石野 亮
  • Industrial Property Rights Holder: 学校法人立命館、プロマティック株式会社
  • Industrial Property Rights Type: 特許
  • Industrial Property Number: 特願2012-155110
  • Filing Date: 2012-10-04
  • Overseas