研究目的
Improving the photoelectrical conversion efficiency (PCE) of bulk heterojunction (BHJ) solar cells by incorporating PbSe nanorods decorated with graphene into their active layer.
研究成果
The incorporation of PbSe nanorods decorated with graphene into the active layer of BHJ solar cells significantly improves their PCE, primarily due to enhanced charge carrier mobility and transport. The study demonstrates the potential of combining graphene and inorganic nanocrystals to enhance solar cell performance.
研究不足
The study is limited by the specific compositions of PbSe:G composites tested and the focus on P3HT:PC61BM based solar cells. The potential for further optimization and the exploration of other organic-inorganic combinations are not addressed.
1：Experimental Design and Method Selection:
Hydrothermal synthesis of PbSe nanorods decorated with graphene and their incorporation into the active layer of BHJ solar cells.
2：Sample Selection and Data Sources:
P3HT and PC61BM were used as the organic components, with PbSe and graphene as inorganic additives.
3：List of Experimental Equipment and Materials:
XRD for crystalline structure identification, SEM and AFM for morphology investigation, UV-VIS spectrophotometer for optical absorbance measurements, and Keithley source-meter for electrical characterization.
4：Experimental Procedures and Operational Workflow:
Synthesis of PbSe:G nanocomposites, fabrication of solar cells with different active layers, and characterization of their photovoltaic properties.
5：Data Analysis Methods:
Analysis of XRD patterns, SEM and AFM images, absorbance spectra, and J-V characteristics to evaluate the performance of the solar cells.
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