Realization of electrically pumped organic semiconductor laser by combining organic laser dye with organic-inorganic hybrid perovskite

2016 Fiscal Year Final Research Report

• Project/Area Number: 15K14149
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Composite materials/Surface and interface engineering
• Research Institution: Kyushu University
• Principal Investigator: Matsushima Toshinori 九州大学, カーボンニュートラル・エネルギー国際研究所, 准教授 (40521985)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Keywords: 有機無機ハイブリッドペロブスカイト / レーザー色素 / トランジスタ / キャリア移動度 / 光共振器 / レーザー発振 / 連続励起光

Outline of Final Research Achievements

We attempted to enhance performance of field-effect transistors with an organic-inorganic hybrid perovskite semiconductor. We obtained a very high hole mobility of up to 26 cm2 V-1 s-1 in p-channel perovskite transistors by optimizing transistor structures. We also demonstrated the first-ever n-channel operation of perovskite transistors with an electron mobility of up to 4.6 cm2 V-1 s-1 through a source-drain electrode modification. In addition, we investigated the optically pumped lasing properties of an organic semiconductor film embedded into an optical resonator. We demonstrated not only quasi-continuous-wave operation with a very high frequency of 80 MHz but also true continuous-wave operation with a very long excitation duration of 30 ms for the devices. These frequency and time are the highest ever reported in any organic laser device.

Free Research Field

デバイス物理