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塗布型多結晶薄膜太陽電池の光キャリアダイナミクスの研究:高効率タンデム化への挑戦

Research Project

Project/Area Number 16F16017
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Applied materials
Research InstitutionKyoto University

Principal Investigator

金光 義彦  京都大学, 化学研究所, 教授 (30185954)

Co-Investigator(Kenkyū-buntansha) LE PHUONG  京都大学, 化学研究所, 外国人特別研究員
Project Period (FY) 2016-04-22 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2017: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2016: ¥1,200,000 (Direct Cost: ¥1,200,000)
KeywordsExcitons / Free carriers / Photocarrier dynamics / Solar cell / Tandem cell / Polycrystalline films / Single crystal / CH3NH3PbX3 (X = I, Br) / Cu2ZnSn(S,Se)4 / Single crystals
Outline of Annual Research Achievements

The CH3NH3PbI3 (MAPbI3) perovskite have been utilized mostly for single-junction perovskite solar cells because of its suitable bandgap for sunlight absorption. For the tandem solar cell application, the MAPbBr3 and mixed-halide (MAPb(I1-xBrx)3 perovskites can be used as a top cell material. We studied the optical properties of MAPbBr3 and mixed-halide (MAPb(I1-xBrx)3 for the perovskites using various spectroscopic optical techniques. We clarified the photocarrier recombination dynamics in I-rich mixed-halide MAPb(I1-xBrx)3 (x = 0 - 0.35) perovskite thin films using nanosecond time-resolved PL and picosecond transient absorption (TA) spectroscopy. Based on the time-resolved PL data, we found that increasing the Br content leads to a slight enhancement in the single-carrier trapping rate, which we attributed to be an increase in the alloy disorder in the Br-containing thin films. Moreover, by performing a global fitting of the TA decay dynamics obtained under various excitation fluences, we were also able to determine the Br-composition dependence of the two-carrier radiative and three-carrier Auger recombination rates. The significant increases in the nonlinear recombination rates with higher Br compositions, up to one order of magnitude, appeared. This is connected to the enhancement in Coulomb interactions between electrons and holes originated from changes in the electronic structure, including the dielectric constant and the effective mass upon the Br incorporation. We also determined the exciton binding energy of MAPbBr3 single crystals.

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (15 results)

All 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 1 results,  Acknowledgement Compliant: 3 results) Presentation (8 results) (of which Int'l Joint Research: 5 results) Remarks (1 results)

  • [Int'l Joint Research] University of Washington(米国)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Nonlinear photocarrier recombination dynamics in mixed-halide CH3NH3Pb(I1? x Br x )3 perovskite thin films2017

    • Author(s)
      Phuong Le Quang、Braly Ian L.、Katahara John K.、Hillhouse Hugh W.、Kanemitsu Yoshihiko
    • Journal Title

      Applied Physics Express

      Volume: 10 Issue: 10 Pages: 102401-102401

    • DOI

      10.7567/apex.10.102401

    • NAID

      210000135990

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Review - Light Emission from Thin Film Solar Cell Materials: An Emerging Infrared and Visible Light Emitter2017

    • Author(s)
      Kanemitsu Yoshihiko、Okano Makoto、Phuong Le Quang、Yamada Yasuhiro
    • Journal Title

      ECS Journal of Solid State Science and Technology

      Volume: 7 Issue: 1 Pages: R3102-R3110

    • DOI

      10.1149/2.0151801jss

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Free Carriers versus Excitons in CH3NH3PbI3 Perovskites Thin Films at Low Temperatures: Charge Transfer from the Orthorhombic Phase to the Tetragonal Phase2016

    • Author(s)
      1.Le Quang Phuong, Yasuhiro Yamada, Masaya Nagai, Naoki Maruyama, Atsushi Wakamiya, and Yoshihiko Kanemitsu
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 7 Issue: 13 Pages: 2316-2321

    • DOI

      10.1021/acs.jpclett.6b00781

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Impact of alkali doping on carrier transport in Cu2ZnSn(S,Se)4 thin films for solar cell applications2016

    • Author(s)
      2.Le Quang Phuong, John K. Katahara, Genki Yamashita, Masaya Nagai, Masaaki Ashida, Hugh W. Hillhouse, and Yoshihiko Kanemitsu
    • Journal Title

      IEEE Photovoltaic Specialist Conference

      Volume: なし Pages: 0027-0030

    • DOI

      10.1109/pvsc.2016.7749402

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Free Excitons and Exciton-Phonon Coupling in CH3NH3PbI3 Single Crystals Revealed by Photocurrent and Photoluminescence Measurements at Low Temperatures2016

    • Author(s)
      3.Le Quang Phuong, Yumi Nakaike, Atsushi Wakamiya, and Yoshihiko Kanemitsu
    • Journal Title

      The Journal of Physical Chemistry Letters

      Volume: 7 Issue: 23 Pages: 4905-4910

    • DOI

      10.1021/acs.jpclett.6b02432

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Fundamental properties of free excitons in orthorhombic-phase CH3NH3PbI3 perovskite single crystals2017

    • Author(s)
      Le Quang Phuong, Yumi Nakaike, Atsushi Wakamiya, Yoshihiko Kanemitsu
    • Organizer
      2017年 第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
  • [Presentation] Free Excitons and Exciton-Phonon Couplings in Orthorhombic-Phase CH3NH3PbI3 Single Crystals2017

    • Author(s)
      Le Quang Phuong, D. Tex, H. Tahara, Y. Nakaike, A. Wakamiya, and Y. Kanemitsu
    • Organizer
      2017 MRS Spring meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Free Excitons and Exciton-phonon Coupling in CH3NH3PbI3 Perovskite Single Crystals at Low Temperatures2017

    • Author(s)
      Le Quang Phuong, Y. Nakaike, A. Wakamiya, and Y. Kanemitsu
    • Organizer
      The Conference on Lasers and Electro-Optics/Europe and the European Quantum Electronics (CLEO®/Europe-EQEC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Excitonic Properties of CH3NH3PbBr3 Single Crystals Revealed by Temperature-Dependent Photocurrent Excitation and Photoluminescence Excitation Spectroscopy2017

    • Author(s)
      Le Quang Phuong, T. Tamada, T. Aharen, Y. Yamada, A. Wakamiya, and Y. Kanemitsu
    • Organizer
      2017 MRS Fall meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Exciton fine structures in CH3NH3PbBr3 single crystals studied by temperature-dependent photocurrent and photoluminescence excitation2017

    • Author(s)
      Le Quang Phuong, Takumi Yamada, Tomoko Aharen, Yasuhiro Yamada, Atsushi Wakamiya, Yoshihiko Kanemitsu
    • Organizer
      2017年 第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Composition-dependent photocarrier dynamics in CH3NH3Pb(I1-xBrx)3 thin films2016

    • Author(s)
      Le Quang Phuong, Ian L. Braly, Hugh W. Hillhouse, Yoshihiko Kanemitsu
    • Organizer
      2016年 第77回応用物理学会秋季学術講演会
    • Place of Presentation
      朱鷺メッセ(新潟県新潟市)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Annual Research Report
  • [Presentation] Exciton dynamics in perovskite CH3NH3PbI3 single crystals2016

    • Author(s)
      L. Q. Phuong, Y. Nakaike, A. Wakamiya, Y. Kanemitsu
    • Organizer
      The 19th International Conference on Dynamical Processes in Excited States of Solids (DPC'16)
    • Place of Presentation
      Paris(France)
    • Year and Date
      2016-07-19
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Impact of alkali doping on carrier transport in Cu2ZnSn(S,Se)4 thin films for solar cell applications2016

    • Author(s)
      L. Q. Phuong, J. K. Katahara, G. Yamashita, M. Nagai, M. Ashida, H. W. Hillhouce, Y. Kanemitsu
    • Organizer
      43nd IEEE Photovoltaic Specialists Conference (43rd IEEE PVSC)
    • Place of Presentation
      Portland(USA)
    • Year and Date
      2016-06-06
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 金光研究室ホームページ

    • URL

      http://www.scl.kyoto-u.ac.jp/~opt-nano/

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report

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Published: 2016-05-17   Modified: 2024-03-26  

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