研究目的
Investigating the improvement of external quantum efficiency in C60/ZnPc organic photovoltaic cells through photo-induced polymerization between C60 molecules.
研究成果
The external quantum efficiency of C60/ZnPc OPVs is improved by photo-induced polymerization between C60 molecules, which increases the optical absorbance and electrical conductivity of the C60 films.
研究不足
The study focuses on the improvement of EQE through polymerization between C60 molecules, but does not explore the long-term stability or scalability of the polymerized C60 films in OPVs.
1：Experimental Design and Method Selection:
The study involved the fabrication of OPVs with ZnPc and C60 films, and aluminum electrodes deposited onto ITO electrodes in vacuum chambers. The thickness of ZnPc and C60 films was controlled at nanometer scale.
2：Sample Selection and Data Sources:
Hetero-junction OPVs [Al/C60/ZnPc/ITO] were constructed with a crossbar structure.
3：List of Experimental Equipment and Materials:
Indium-tin-oxide (ITO) electrodes, aluminum (Al) electrodes, ZnPc, C60 films, vacuum chambers.
4：Experimental Procedures and Operational Workflow:
External quantum efficiency (EQE) was measured by photocurrent generated by monochromatic light irradiation. OPVs composed of photopolymerized C60 molecules (P-C60) were fabricated by UV-vis light irradiation.
5：Data Analysis Methods:
FT-IR spectroscopy was used to confirm the formation of dumbbell-shaped C60 dimers.
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