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Direct demonstration of triplet excimer in purely organic room temperature phosphorescence through rational molecular design

Chemistry

Direct demonstration of triplet excimer in purely organic room temperature phosphorescence through rational molecular design

Z. Liu, Y. Tian, et al.

Discover the fascinating world of organic luminogens demonstrating room temperature phosphorescence, as researchers including Zhenjiang Liu and Yu Tian reveal how variations in molecular packing impact RTP emission. This study unveils the exciting dynamics of dimers, where strong π–π stacking leads to triplet excimer emission, and weak stacking showcases dual RTP from both monomer and excimer forms.

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Playback language: English
Abstract
Organic luminogens with room temperature phosphorescence (RTP) have garnered significant attention due to their wide application values. This study designed and synthesized eight phenothiazine 5,5-dioxide derivatives to investigate the relationship between monomer and dimer packing and RTP emission. Dimers with strong π–π stacking exhibited pure triplet excimer emission, while those with weak π–π stacking showed dual RTP emissions from both monomer and triplet excimer.
Publisher
Light: Science & Applications
Published On
Authors
Zhenjiang Liu, Yu Tian, Jie Yang, Aisen Li, Yunsheng Wang, Jia Ren, Manman Fang, Ben Zhong Tang, Zhen Li
Tags
room temperature phosphorescence
organic luminogens
phenothiazine derivatives
π–π stacking
triplet excimer emission
dimers

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