Dependence of Amplified Spontaneous Emission Threshold on Atmosphere in Whispering Gallery Mode Resonators Including 1,3-Diphenylisobenzofuran as a Singlet Fission Material

被引：0

作者：

Togawa, Kyosuke ^{[1
]}

Komino, Takeshi ^{[1
]}

Mikajiri, Tomoki ^{[1
]}

Yamada, Jun-ichi ^{[1
]}

Tajima, Hiroyuki ^{[1
]}

机构：

[1] Univ Hyogo, Grad Sch Sci, Ako, Hyogo 6781297, Japan

来源：

CHEMISTRY LETTERS | 2023年 / 52卷 / 04期

关键词：

Whispering gallery modes; Amplified spontaneous emission; Singlet fission; THIN-FILMS;

D O I：

10.1246/cl.230041

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Whispering gallery mode resonators were fabricated from a methylphenyl)fluorene) with a singlet fission material (1,3diphenylisobenzofuran). We found that the amplified spontaneous emission threshold (Ith) of the laser dye in air was higher than that in nitrogen. We ascribed the origin of the dependence of Ith on atmosphere to singlet fission of 1,3-diphenylisobenzofuran, followed by triplet exciton quenching by oxygen.

引用

页码：280 / 283

页数：4