Discerning morphological evolution under thermal stress in polymerized small molecular acceptor-based all polymer solar cells

Puntos clave

• Severe thermal disaggregation leads to efficiency loss in polymerized small molecular acceptor-based solar cells under thermal stress, emphasizing the need for stability improvements.
• Thermal degradation pathways demonstrate that polymer donors are critically affected, influencing overall cell performance in extreme temperatures.
• Assessment focused on polymerized small molecular acceptor materials within all-PSCs, highlighting their vulnerability to thermal conditions.
• Findings imply urgent action is needed to enhance thermal stability in solar cell technologies to prevent performance declines.