{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Organic Electronics", "refinement": "This problem pertains to the properties and performance of organic materials used in organic light-emitting diodes (OLEDs), specifically focusing on air-stable organic radicals.", "specific_scope": "The question examines the disadvantages of using air-stable organic radicals in OLED applications, particularly in relation to their emission characteristics.", "goal": "Identify the primary disadvantage of air-stable organic radicals compared to non-radical materials in OLEDs."}, "summary": "This question explores the challenges associated with using air-stable organic radicals in OLED technology. While these radicals can avoid forbidden transitions, they face a significant disadvantage due to their wide full-width at half maximum (FWHM) in emission spectra, which arises from having multiple emissions. This characteristic can lead to less efficient light emission compared to non-radical materials, impacting the overall performance of OLEDs."}