Herlin Pujiarti, Ema Tri Alvianti, Alfiatul Ma'arifah, Markus Diantoro, Risa Suryana, Malik Maaza
Leakage and evaporation of liquid electrolytes are some of the factors that cause energy conversion in DSSCs to be less than optimal. Therefore, the use of nanofiber membranes as an alternative is increasingly used to overcome these problems. PAN/PVDF is a commonly used polymer combination in the manufacture of nanofiber membranes. However, PAN/PVDF has low ionic conductivity that limits the performance of DSSCs. The addition of carbon-based materials to the nanofiber membrane is known to increase the ionic conductivity value. Therefore, this study was conducted by adding Carbon Quantum Dots to the PAN/PVDF solution to improve the conductivity and stability of the membrane. The PAN/PVDF/Carbon Quantum Dots solution is then produced as a nanofiber membrane that will be used as an electrolyte membrane in DSSC. Characterization performed includes XRD to determine the crystal structure, FTIR to identify functional groups, and SEM to determine the morphology and diameter size of the nanofiber membrane. Furthermore, I-V and EIS tests were conducted to determine the performance of the DSSC cell, including its power conversion efficiency and electrical impedance characteristics. The PAN/PVDF/Carbon Quantum Dots nanofiber membrane showed the most optimal results with the highest efficiency of 5.8 %, porosity of 63.36 %, nanofiber diameter of 262.8 nm, electron lifetime of 4.03 ms, and ionic conductivity 1.87 × 10−4 S/cm. © 2025 Elsevier B.V.
Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia; Center of Advanced Materials and Renewable Energy, Universitas Negeri Malang, Jl. Semarang No. 5, Malang, 65145, Indonesia; Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36 A, Surakarta, 57126, Indonesia; Nanoscience and Nanotechnology, University of South Africa, Pretoria, South Africa
