Cavity polariton using hybrid perovskite materials

2015 Fiscal Year Final Research Report

• Project/Area Number: 25286072
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Optical engineering, Photon science
• Research Institution: Sophia University
• Principal Investigator: EMA Kazuhiro 上智大学, 理工学部, 教授 (40194021)
• Co-Investigator(Kenkyū-buntansha): ERA Masanao 佐賀大学, 工学系研究科, 准教授 (30191927) ; Ohtsuki Tomi 上智大学, 理工学部, 教授 (50201976)
• Co-Investigator(Renkei-kenkyūsha): KUNUGITA Hideyuki 上智大学, 理工学部, 助教 (50296886) ; TAKADA Noriyuki 産業技術総合研究所, 研究員 (70357359)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ハイブリッド物質 / マイクロキャビティ / ポラリトン

Outline of Final Research Achievements

The purpose of this study is to achieve the polariton laser at room temperature using the micro-cavity containing organic-inorganic hybrid perovskite materials which have extremely large exciton binding energies. We have measured the strong exciton-cavity coupling with a large vacuum Rabi splitting of 146 meV. However, we have not achieved an establishment of the polariton laser. We are now improving the cavity structure to achieve the polariton laser.
We have also studied the excitonic properties of three-dimensional hybrid perovskite materials. We have confirmed that the excitons exist even at room temperature, and succeeded in the estimation of the exciton binding energy to be 20 ~ 40 meV.

Free Research Field

光物性