研究紹介

有機多層膜構造を持つ光増幅デバイス

平本 昌宏,勝目 正,横山 正明

応用物理, 第64巻, 第10号, pp.1036-1039 (1995)

 有機電界発光 (EL) ダイオードの「電子→光」変換機能と, 有機顔料薄膜の「光→電子」変換機能を組み合わせた,光増幅デバイスについて紹介する. 本デバイスは,光導電性有機顔料における光電流増倍現象を利用して, 最大25倍の光増幅を行うことができる. また,光の短波長変換,出力光のフィードバック効果による光スイッチング, 光パターン記憶など,多くの面白い機能を備えている.

A light amplification device with multilayered structure of organic thin films

Masahiro HIRAMOTO, Tadashi KATSUME and Masaaki YOKOYAMA

OYO BUTURI, vol.64, No.10, pp.1036-1039 (1995)

A light amplification device based on hybridization of organic electroluminescent diodes and photoresponsive perylene pigment films was reported. Amplification gain of photon conversion from red to red reached 25-fold with the assistance of the large photocurrent multiplication phenomenon in perylene pigment films. Light up-conversion from red to green and optical switching behavior caused by feedback of output light to the photorespinsive layer were also demonstrated.
Keywords : light amplification, light up-conversion, organic electroluminescence, photoresponsive organic pigment, photocurrent multiplication, tunneling injection, structural carrier trap, feedback effect, optical switching, optical pattern memory