Year: 2025
Type: article
Abstract: Dye-sensitized solar cells (DSSCs) are promising photovoltaic devices due to their low cost, ease of fabrication, and superior performance under low-light conditions. In this study, DSSCs employing pristine TiO₂ and boron-doped TiO₂ photoanodes were fabricated and their photovoltaic performance was systematically investigated. The devices were evaluated under standard solar illumination as well as under varying light intensities and compared with a commercial silicon (Si) photodetector. Currentvoltage (J–V) characteristics and illumination-dependent response measurements were used to assess device behavior. The pristine TiO₂-based DSSC achieved a power conversion efficiency of 8.81%, while the boron-doped TiO₂-based device exhibited an efficiency of 6.46%. Although boron doping led to a reduction in overall efficiency under standard illumination, the boron-doped TiO₂ photoanode demonstrated a competitive voltage response and enhanced sensitivity under low-light conditions. Compared to the Si sensor, both DSSC-based devices exhibited significantly higher output signals at low illumination levels, highlighting their suitability for indoor and low-intensity light harvesting applications. The results provide insight into the role of boron doping in TiO₂ photoanodes and demonstrate the advantages of DSSCs over conventional Si-based photodetectors in low-light environments.
Author: ÖZBAY KARAKUŞ, Mücella
Institution: Bakırçay Üniversitesi
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W7218239491