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Construction of avalanche-like super sensitive photodetectors based on hybrid perovskite photodiode

Research Project

Project/Area Number 16K17952
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Organic and hybrid materials
Research InstitutionThe University of Tokyo

Principal Investigator

Chen Hsin-Wei  東京大学, 大学院総合文化研究科, 特任研究員 (10750953)

Research Collaborator BESSHO Takeru  
TANG Zeguo  
SEGAWA Hiroshi  
Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2017: ¥130,000 (Direct Cost: ¥100,000、Indirect Cost: ¥30,000)
Fiscal Year 2016: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywordsopto-electronic device / photodetector / solar cells / perovskite / dye sensitized / perovskite solar cells / Hysteresis-less / tin oxide / spray pyrolysis / low temperature process / Low temperature process / Spray pyrolysis method / Tin oxide / Perovskite / Photovoltaics / 太陽電池 / 太陽光発電
Outline of Final Research Achievements

For future application to Avalanche diode, Hysteresis-less organo metal halide perovskite opto electronic device with tin oxide (SnOx) compact layer prepared by spray pyrolysis are reported. A superior SnO2 compact layer is prepared with tin tetrachloride pentahydrate (SnCl4-5H2O) solution by post thermal annealing at several different temperatures, which revealed the lowest resistance of SnO2 layer was made at 200 ℃. Therefore, a good electron transfer property could reduce charge accumulation at the interface to perovskite, which leads to J-V hysteresis-less behavior.
In results, the power conversion efficiency and minimum hysteresis factor were reached to 18.1% and in 1%. As the important property of photodetectors, photo-response of devices under different light intensity with the SnO2 and TiO2 were resulted in faster response on SnO2 until reaching steady state current than TiO2, which indicated that SnO2 based photodetectors shows their superior sensitivity for photocurrent.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (3 results)

All 2017

All Presentation (3 results) (of which Int'l Joint Research: 3 results)

  • [Presentation] Tin oxide based organo-lead-halide perovskite solar cells prepared by low temperature solution process2017

    • Author(s)
      HSIN-WEI CHEN
    • Organizer
      Asia Pacific Hybrid and Organic Photovoltaics Conference (AP-HOPV17)
    • Place of Presentation
      パシフィコ横浜 (神奈川県、横浜市西区みなとみらい)
    • Year and Date
      2017-02-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Tin oxide based Organo-lead-halide Perovskite Solar Cells Prepared by Low Temperature Solution Process2017

    • Author(s)
      Hsin-Wei Chen, Takeru Bessho, Zeguo Tang and Hiroshi Segawa
    • Organizer
      Asia Pacific Hybrid and Organic Photovoltaics Conference (AP-HOPV17)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Tin oxide Electron-transport Layer Prepared by Spray Pyrolysis for Hysteresis-less Organo-metal-halide Perovskite Solar Cells2017

    • Author(s)
      Hsin-Wei Chen, Takeru Bessho, Zeguo Tang and Hiroshi Segawa
    • Organizer
      The 27th Photovoltaic Science and Engineering Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2019-03-29  

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