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2020 Fiscal Year Annual Research Report

Up-Scaling of Organic-Inorganic Hybrid Perovskite Solar Cells and Modules

Research Project

Project/Area Number 18K05266
Research InstitutionOkinawa Institute of Science and Technology Graduate University

Principal Investigator

Qi Yabing  沖縄科学技術大学院大学, エネルギー材料と表面科学ユニット, 教授 (10625015)

Project Period (FY) 2018-04-01 – 2021-03-31
KeywordsMetal halide perovskite / Photovoltaic technology / Solar module / Up-scaling / Chemical vapor deposit / All-inorganic perovskite / Operational stability / Passivation
Outline of Annual Research Achievements

Energetics and energy level alignment have a profound effect on perovskite solar cell performance. During fabrication of perovskite solar cells (either by hybrid chemical vapor deposition or solution processing), perovskite films usually experience a variety of different atmospheres (e.g., ambient air, dry nitrogen gas, vacuum etc.). It is of vital importance to understand the influence of these different atmosphere conditions on the energetics of perovskite films. We performed a systematic study on this topic. In our study, we varied the atmosphere to simulate the various atmosphere conditions during device fabrication. We did experiments to measure the Fermi level evolution, surface photovoltage, photoluminescence properties, photovoltaic performance, and obtained the energy diagrams under various conditions. We find that the atmosphere has a strong effect on the energetics of perovskite films. In particular, we observed a universal Fermi level shift under vacuum for lead halide-based perovskites in this study. More information about this study can be found from our publication: Zhanhao Hu, Zonghao Liu, Luis K. Ono, Maowei Jiang, Sisi He, Dae-Yong Son, Yabing Qi*, "The impact of atmosphere on energetics of lead halide perovskites", Advanced Energy Materials 10, 200908 (2020).

  • Research Products

    (3 results)

All 2020

All Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 1 results)

  • [Journal Article] The Impact of Atmosphere on Energetics of Lead Halide Perovskites2020

    • Author(s)
      Hu Zhanhao、Liu Zonghao、Ono Luis K.、Jiang Maowei、He Sisi、Son Dae‐Yong、Qi Yabing
    • Journal Title

      Advanced Energy Materials

      Volume: 10 Pages: 2000908~2000908

    • DOI

      10.1002/aenm.202000908

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] CsPbBrxI3-x thin films with multiple ammonium ligands for low turn-on pure-red perovskite light-emitting diodes2020

    • Author(s)
      Jiang Maowei、Hu Zhanhao、Ono Luis K.、Qi Yabing
    • Journal Title

      Nano Research

      Volume: 14 Pages: 191~197

    • DOI

      10.1007/s12274-020-3065-5

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Photon Upconverting Solid Films with Improved Efficiency for Endowing Perovskite Solar Cells with Near‐Infrared Sensitivity2020

    • Author(s)
      Kinoshita Mika、Sasaki Yoichi、Amemori Shogo、Harada Naoyuki、Hu Zhanhao、Liu Zonghao、Ono Luis K.、Qi Yabing、Yanai Nobuhiro、Kimizuka Nobuo
    • Journal Title

      ChemPhotoChem

      Volume: 4 Pages: 5271~5278

    • DOI

      10.1002/cptc.202000143

    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2021-12-27  

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