{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Electronics \u2192 Organic Light Emitting Diodes (OLEDs)", "refinement": "This problem focuses on the properties and performance of air-stable organic radicals in OLED applications, particularly their advantages and disadvantages compared to non-radical materials.", "specific_scope": "The question specifically addresses the disadvantages of using air-stable organic radicals in OLEDs, particularly in relation to their stability and efficiency.", "goal": "Identify the primary disadvantage of air-stable organic radicals in OLEDs and explain the underlying reason."}, "summary": "The question explores the challenges associated with using air-stable organic radicals in OLED technology. While these radicals can help avoid forbidden transitions, they have significant disadvantages compared to non-radical materials. The task is to identify the main drawback from the provided options, focusing on the reactivity and efficiency of these radicals in OLED applications."}