[22a-E206-1~6] 12.4 Organic light-emitting devices and organic transistors

[22a-E206-6] Electroluminescence of Microcavities Composed of Organic Semiconductor Crystals Fabricated by Solution Casting Methods

〇Fumio Sasaki¹, Takumi Matsuo¹, Noriyuki Takada¹, Naho Kurahashi², Hitoshi Mizuno², Hisao Yanagi² (1.RIAEP AIST, 2.NAIST)

Keywords:organic semiconductor laser, microcavity, (thiophene/phenylene) co-oligomer (TPCO)

Light emitting devices that use stimulated emission processes are promising for achieving high brightness and high-power efficiency. Recently, some high-performance headlights and laser projectors are being put to practical use. In order to carry out this with a simple manufacturing process, it is necessary to realize a current injection type organic semiconductor laser. We have produced promising organic semiconductor material (thiophene/phenylene) co-oligomer (TPCO) crystals as a light emitting layer using simple solution casting methods, and realized EL light emission in microcavities that can be easily lasing by photoexcitation. We will report on it.