Investigation to determine the factor of long-term stability and development of Pb-free materials for application

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05597
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Energy-related chemistry
• Research Institution: Kyushu Institute of Technology
• Principal Investigator: MA TINGLI 九州工業大学, 大学院生命体工学研究科, 教授 (20380545)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: プロブスカイト / 耐久性 / 鉛フリー / 高効率 / カーボン電極 / 太陽電池

Outline of Final Research Achievements

In recent years, lead-based perovskites have become the most promising photovoltaic material showing an excellent photoelectronic performance. However, the lead-based perovskite has the issues of instability and environmental problem. In this project, we carried out the studies of improvement of the stability by using carbon electrode to replace Au and sprio hole transfer material. We also designed and synthesized several new lead-free Bi-based double perovskite materials. We investigated the crystallite and electronic structure and optical properties by various testing methods. The Bi-based Pb-free perovskite solar cells were also fabricated. The performance have been evaluated by J-V curves and IPCE.
Based on the results, we published 20 papers(during them, 18 publications are collaboration with abroad). We also presented our results at international conferences as invited speaker and oral presentaion. We think that these results are very important for PSCs.

Free Research Field

太陽電池、ナノ機能材料