Three-Dimensional Monolayer Graphene and TiO2 Hybrid Architectures for High-Efficiency Electrochemical Photovoltaic Cells

摘要: Three-dimensional (3D), tubular-structured monolayer graphene networks were hybridized with TiO2 nanoparticular layer for futuristic and robust electrode applications. A continuous form of 3D good carrier mobility provides a direct pathway electrons to the current collector photoanode in dye-sensitized solar cells. This characteristic feature, coupled its energy level, ensures an enhanced charge collection efficiency. Particular attention was paid surface functionalization effective loading nanoparticles improve light harvesting minimize electron recombination photoanode. The optimal hybrid structure resulted 10% conversion efficiency, compared TiO2-based analogue without graphene. impedance spectra confirmed that increase photovoltaic performance mainly driven by efficient through 3D, new prototype can serv...