MoSe2 nanoflowers as a counter electrode for quantum dots sensitized solar cells

Recent advances in molybdenum diselenide-based electrocatalysts: preparation and application in the hydrogen evolution reaction

“…A few layered MoSe 2 nanoflowers were prepared using Na 2 Mo 4 as the Mo source and Se powder as the Se precursor in the presence of hydrazine and NaHB 4 via the solvothermal process. 88 The obtained MoSe 2 showed a crystalline hexagonal structure with P6 3 /mmc symmetry, interlayer spacing of 0.69 nm, and enhanced specific surface area of 50.3 m 2 g −1 . The wrinkled surface structure on MoSe 2 nanoflowers is beneficial for the improvement of catalytic activity due to the exposed more active sites.…”

“…), and composition (heteroatom doping, etc .). For single MoSe 2 , an excellent HER performance mainly relies on 1T phase content, 200 morphology-induced piezo-flexoelectric coupling effect, 92 defects or vacancies, and more exposed Se active sites, 88,96 as well as synergistic effect (active site and 2H phase). 202 For N, B, S, P-doped MoSe 2 , 45 more exposed active sites, composition alteration, formed vacancies, and heteroatom-induced phase transformation of 2H-MoSe 2 into 1T or 1T′-/2H-MoSe 2 139 as well as the synergistic effect of heteroatom doping and 1T/2H phase 102 are used to explain the HER activity of catalysts and elucidate the structure-performance correlation.…”

One-Step Synthesis of Transition Metal Dichalcogenide Quantum Dots Using Only Alcohol Solvents for Indoor-Light Photocatalytic Antibacterial Activity

“…Two-dimensional (2D) materials have come into the spotlight over the past years due to their abundant properties since the discovery and extensive research of graphene. − Transition metal dichalcogenides (TMDs) that consist of a sandwiched bonding structure of a single layer transition metal between two chalcogen layers have attracted significant attention for decades. TMDs are not only layered semiconductors weakly bonded by van der Waals’ interactions but exhibit a range of mechanical, electronic, chemical, optical, and thermal characteristics and photocatalytic hydrogen evolution. − Among them, MoS 2 and WS 2 are well-known TMDs materials with high carrier mobility and narrow bandgap, which can be used as visible-light-driven photocatalysts.…”

Interface Regulation and Properties of Transparent Anatase TiO2 Photoanode Quantum Dot-Sensitized Solar Cells

“…However, the complex and high-surface-area morphology almost kills the transparency of the photoanode, and it seems impossible to achieve both transparency and efficiency. Research progress leading to transparent QDSSCs has been slow. , Thus, we propose a new strategy to reasonably regulate the internal resistance of solar cells, so as to improve the open-circuit voltage ( V oc ), fill factor (FF), and PCE of solar cells. , As shown in Figure , building on our previous work, we use the method of secondary spin-coating, first spin-coating n -butyl titanate and then spin-coating terpineol . Terpineol will form hydrogen bonds with water vapor in the air, slowing down the reaction rate of n -butyl titanate and water vapor, and making it form a more smooth and smooth bulk amorphous TiO 2 film.…”

“…Research progress leading to transparent QDSSCs has been slow. 13,14 Thus, we propose a new strategy to reasonably regulate the internal resistance of solar cells, so as to improve the open-circuit voltage (V oc ), fill factor (FF), and PCE of solar cells. 15,16 As shown in Figure 1, building on our previous work, we use the method of secondary spin-coating, first spin-coating n-butyl titanate and then spin-coating terpineol.…”