研究目的
Investigating the effect of UV radiation on ITO/PEDOT:PSS substrates for perovskite solar cells to improve their performance.
研究成果
UV treatment on PEDOT:PSS for up to 10 min improves the performance of perovskite solar cells, with a 9% increase in power conversion efficiency. Longer exposure times degrade performance due to increased sheet resistance and poor contact between grains.
研究不足
The study is limited to the effects of UV irradiation on ITO/PEDOT:PSS substrates for perovskite solar cells. The optimal UV exposure time was found to be 10 min, beyond which performance degraded.
1：Experimental Design and Method Selection:
The study involved fabricating inverted-type perovskite solar cells with CH3NH3PbI3?xClx perovskite. The effects of UV radiation on ITO/PEDOT:PSS substrates were investigated.
2：Sample Selection and Data Sources:
ITO/PEDOT:PSS substrates were exposed to UV radiation for 5 to 15 min.
3：List of Experimental Equipment and Materials:
Equipment included photovoltaic characterization tools, UV–VIS absorption, sheet resistance, XRD, SEM, FTIR, and EQE characterization techniques.
4：Experimental Procedures and Operational Workflow:
The substrates were exposed to UV radiation, and perovskite solar cells were fabricated on them. Performance was compared with non-treated substrates.
5：Data Analysis Methods:
Performance metrics such as power conversion efficiency were analyzed to evaluate the effect of UV irradiation.
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Keithley 2400-LV source meter
2400-LV
Keithley
Used for current–voltage (I–V) measurements of OPV devices.
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FEI Quanta FEG 250 scanning electron microscope
Quanta FEG 250
FEI
Used for examining the surface morphologies of the PEDOT:PSS films and the perovskite films.
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Bruker D8 Advance Twin-Twin
D8 Advance Twin-Twin
Bruker
Used for X-ray diffraction method (XRD) characterization.
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Shimadzu SPM-9600
SPM-9600
Shimadzu
Used for AFM and KPFM analyzes.
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LOT-Quantum Design solar simulator
LOT-Quantum Design
Used for simulating AM 1.5 conditions with a 150W xenon arc lamp.
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Gamry Reference 3000
Reference 3000
Gamry
Used for electrochemical impedance spectroscopic (EIS) analysis.
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