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Updated: Jun 19, 2026

Using Cyclic Voltammetry, UV-Vis-NIR, and EPR Spectroelectrochemistry to Analyze Organic Compounds
Published on: October 18, 2018
Anti-Kasha emissive organic materials: molecular design, fundamental strategies, mechanistic insights, and emerging
Debika Barman1, Srinivas Chakali1, Mrinalini Singh1
1Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India. pki@iitg.ac.in.
Abstract:
Anti-Kasha emissive materials commonly exhibit dual or multiple emission bands originating from different excited states. Such unconventional photophysical behavior enables white-light emission and stimuli-responsive luminescence, broadening applicability in modern optical applications. Achieving and rationally controlling anti-Kasha emission demand a systematic understanding of both molecular design principles and associated excited-state mechanistic pathways. In this review, we summarize organic systems showing pronounced anti-Kasha emission, with emphasis on molecular design strategies and structure-property correlations. These materials are categorized based on their emission pathways, with representative recent examples highlighted to provide insights into the origin and regulation of anti-Kasha emissions. Furthermore, the applications of anti-Kasha emissive systems are discussed in the context of optoelectronic and biomedical fields. Finally, key challenges and future prospects in this emerging field are outlined to encourage deeper investigations and accelerate the development of next-generation anti-Kasha emissive materials.
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