Development of novel pyroelectric materials with ultra-high sensitivity

2019 Fiscal Year Final Research Report

• Project/Area Number: 17K05031
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Applied materials
• Research Institution: Shizuoka University
• Principal Investigator: FU DESHENG 静岡大学, 工学部, 教授 (30422546)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: 焦電体 / 強誘電性 / 赤外線センサ / PMN-PT / リラクサー

Outline of Final Research Achievements

This study was focused on the design and development of novel pyroelectric material used for the infrared sensor with high performance. We have investigated the dielectric, ferroelectric, pyroelectric properties and specific heat of Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) relaxor ferroelectric and found that PMN-PT ceramic shows high figures of merit of current and voltage responsibity as compared with commercially available PZT and PLZT ceramics.

Free Research Field

誘電体

Academic Significance and Societal Importance of the Research Achievements

本研究では、Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) リラクサー強誘電体セラミックスが商品化されたPZTやPLZT焦電セラミックスより数倍大きい焦電係数と電圧評価指数を持っていることを発見した。本研究成果は、超高感度焦電センサ材料開発の方向性を示すとともに、焦電赤外線センサの新たな使い道を切り開くことが期待される。