研究目的
Investigating the photovoltaic properties of a conjugated copolymer blended with flame-made ZnO nanoparticles for solar cell applications.
研究成果
The study demonstrated that the addition of ZnO nanoparticles improved the power conversion efficiency (PCE) of the solar cells, with the best performance observed at 5.46 wt% ZnO loading. The improvements in PCE were attributed to the light scattering of the nanoparticles and their role as acceptor materials.
研究不足
The performance of ternary systems has yet to be optimized. Possible mechanisms for the observed improvement in Jsc realized through the addition of ZnO nanoparticles need further investigation. Performance of the device fabricated without PC61BM should be explored.
1：Experimental Design and Method Selection:
The study involved the synthesis of a copolymer and its characterization, followed by the fabrication of bulk-heterojunction (BHJ) solar cells using different solvents and ZnO nanoparticles.
2：Sample Selection and Data Sources:
The copolymer was synthesized using a microwave-assisted stille coupling procedure. ZnO nanoparticles were produced by flame spray pyrolysis.
3：List of Experimental Equipment and Materials:
Bruker 300 Ultra Shield for NMR, chlorobenzene, chloronapthalene, 1-butanol, PC61BM, ITO glass, PEDOT:PSS, lithium fluoride, aluminum.
4：Experimental Procedures and Operational Workflow:
The copolymer was synthesized and characterized. Solar cells were fabricated by spin-coating the active layer on ITO glass, followed by deposition of lithium fluoride and aluminum cathode.
5：Data Analysis Methods:
Current–Voltage (J–V) characteristics were tested with a solar simulator, and external quantum efficiency (EQE) was measured on a Newport Merlin lock–in amplifier.
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