研究目的
Investigating the performance of indoor organic photovoltaics (iOPVs) under low power indoor lighting conditions, focusing on photoactive material selection, greener ink formulations, and slot-die coated active layers.
研究成果
The research demonstrates that organic photovoltaic devices based on the donor polymer PPDT2FBT and a N-annulated perylene diimide acceptor are excellent candidates for indoor energy conversion applications, offering high efficiency and stable performance under varied indoor illumination conditions.
研究不足
The study highlights the potential of PDI based iOPV systems but notes the performance drop when switching from spin-cast to slot-die coated active layers for some acceptor materials. The research also points out the need for further optimization of the active layer blends for better performance under low light intensity.
1：Experimental Design and Method Selection
The study involved the fabrication of inverted type organic photovoltaic devices with active layer blends utilizing the polymer donor PPDT2FBT paired with various acceptors. The devices were tested under both 1 sun and indoor light sources to evaluate their efficiency.
2：Sample Selection and Data Sources
The samples included active layer blends of PPDT2FBT with fullerene, perylene diimide, or ring-fused acceptors. Data was collected on their performance under different lighting conditions.
3：List of Experimental Equipment and Materials
The materials used included the polymer donor PPDT2FBT, fullerene, perylene diimide, and ring-fused acceptors. The devices were fabricated using non-halogenated solvents and both spin-cast and slot-die coating methods.
4：Experimental Procedures and Operational Workflow
The active layers were first spin-cast from 1,2-ortho-dichlorobenzene (o-DCB) and diphenyl ether (DPE) mixed solvent solutions. Then, o-DCB was replaced by o-xylene as a greener processing solvent. The active layer processing was optimized by varying the solution concentration, spin-casting speed, donor:acceptor (D:A) ratio, and DPE additive concentration.
5：Data Analysis Methods
The performance of the devices was evaluated based on their power conversion efficiency (PCE), open-circuit voltage (VOC), short-circuit current (JSC), and fill factor (FF) under different lighting conditions.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
