Characteristics of Dye-Sensitized Solar Cell under PWM Illumination: Toward Indoor Light-Energy Harvesting in the Solid-State Lighting Era
نویسندگان
چکیده
The dye-sensitized solar cell (DSSC) has been on the market as a permanent power source for indoor IoT edge devices. In recent years, illumination technology experiencing drastic transition from incandescent and fluorescent lamps toward solid-state lighting devices with light-emitting diodes (LEDs). addition to high efficiency, virtue of LEDs is their prompt response, which enables precise change level using pulse-width modulation (PWM) current source, thus PWM commonly installed in society. light intensity off states an LED under driving literally infinity, causes flicker. flicker induces not only optical illusion but also biological effects, including serious health problems, can be mitigated by raising frequency. Because peak 100 times that average intensity, cell, relatively series resistance, expected underperform. this paper, characteristics commercial DSSC are studied. It found while at low frequency seriously deteriorates performance DSSC, it recovers latter feature amorphous-Si cells, electrochemical impedance spectroscopy revealed stems nature some components offering key piece evidence superiority use modern application over traditional cells.
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ژورنال
عنوان ژورنال: Energies
سال: 2022
ISSN: ['1996-1073']
DOI: https://doi.org/10.3390/en15249553