Synthesis and Characterization of MoS2 Thin Films via Spray Pyrolysis for Solar Cell Application
摘要
Quantum Dot Sensitized Solar Cells (QDSSCs) represent a promising third-generation photovoltaic technology. While platinum (Pt) has been the benchmark counter electrode (CE) due to its excellent catalytic activity, its high cost necessitates the exploration of affordable alternatives. Molybdenum disulfide (MoS2), has emerged as a strong candidate owing to its catalytic activity and stability for various redox couples. In this work, we report the synthesis of MoS2 thin films on both Fluorine-doped Tin Oxide coated glass substrates (FTO) and soda lime glass substrates using the spray pyrolysis method, systematically varying the substrate temperature and duration. SEM images revealed a highly porous and interconnected network morphology with distinct hexagonal-like MoS2 nanocrystals. XRD and Raman analysis confirmed the formation of a mixed phase, primarily composed of: MoO3, 2H MoS2, 1 T MoS2 for the thin films deposited on FTO and glass substrates. The formation of the 1 T-MoS2 phase, coupled with its advantageous porous morphology, underscores its potential as an efficient and cost-effective counter electrode for QDSSCs.