研究目的
To implement a system to characterize silicon solar cell performance and increase energy efficiency by imposing coatings as infrared wave absorbers to overcome the Shockley–Queisser limit.
研究成果
The application of organic absorbent, complex coating substance, N719, has been positive in increasing energy efficiency by up to 1.38%. A 1.60% increase in energy efficiency is observed due to temperature reduction by 2 degrees. The best performance was achieved with 100 droplets (45.61 gr·cm?1) of the absorber.
研究不足
Parameters such as the effect of wind, the type of coating, and deposition methods have not been investigated in this study. Also, the ideal set-up similar to the standard model for in situ measurements was not harnessed.
1：Experimental Design and Method Selection:
Laboratory and experimental set-up measurements to find an organic absorber with the highest absorbance. Ruthenium-based dye, N719, was tested under various conditions.
2：Sample Selection and Data Sources:
Monocrystalline silicon solar cell with an area of 156.25 cm2 was selected as the substrate. Various organic and inorganic infrared-absorbing coatings were deposited on the silicon-based solar cells substrate.
3：25 cm2 was selected as the substrate. Various organic and inorganic infrared-absorbing coatings were deposited on the silicon-based solar cells substrate. List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Solar simulator with tungsten halogen lamps, thermocouple contact probe, pyranometer, anemometers, multimeter, rheostat, and cooling fan.
4：Experimental Procedures and Operational Workflow:
Photovoltaic characteristics were measured before and after coating and then evaluated after applying a cooling system. Experiments were conducted in laboratory conditions and in experimental set-up conditions.
5：Data Analysis Methods:
Current and voltage were measured in 50 steps based on variable resistance increment. Data were combined to calculate the power at each step; the current versus voltage curves have been plotted to render the maximum power.
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Solar simulator
1000-watt tungsten halogen lamp
To simulate the STC condition for photovoltaic characterization
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Thermocouple contact probe
To sense the cell surface temperature
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Pyranometer
TES 1333 Solar Power Meter
Taiwan
To measure the radiation
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Anemometers
DT-619 CFM/CMM Thermo Anemometer
China
To measure the wind speed
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Multimeter
PROVA 801/803 Digital Multi-Meter
Taiwan
To measure current and voltage
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Rheostat
Variable resistor for current and voltage measurement
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Cooling fan
To control the temperature rise of the system
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