Layer-by-layer deposition and photovoltaic property of Ru-based metal–organic frameworks

Facile interfacial charge transfer across hole doped cobalt-based MOFs/TiO2 nano-hybrids making MOFs light harvesting active layers in solar cells

“…[35][36][37] Although the efficiency of the MOF based devices is still lower than the current state-ofart in dye sensitized solar cells, endless combination of variety of metal ions and organic linkers are possible to make MOFs with different electronic and light harvesting properties, which can improve the power conversion efficiencies of the photovoltaic devices. As we can see in previous works 35,37,39 that using different light harvesting metal centres-for example replacing Cu-ions by Pd-ions or Ru-ions in the frameworks, the photovoltaic performance of the device has been enhanced markedly. However, considering the cost of noble and rare metal-precursors, search for alternative metal ion-precursors, which are commonly available and are low cost, is highly desirable.…”

“…The observed relatively better conductivity of the Co-NDC film could be due to the confinement of higher number of iodine molecules and their contribution to the interaction with πelectrons from the naphthalene ring of frameworks. 39 This is the main reason that the frameworks with Co 2+ metal centres are investigated in the present studies. To explore the feasibility of using the above Co-MOFs as light-harvesting absorber layer in photovoltaics, first of all, their optoelectronic properties were investigated.…”

“…However, appropriate assembly of MOFs into TiO 2 films can drastically affect the electron transportation behaviour and this is crucial for their applications. Based on our previous experience [37][38][39] , and on the basis of hit-and-trial on photocurrent-voltage (J-V) curve measurements, 20 LBL sensitization cycles of MOFs were optimized. Fig.…”

Zeolite membranes – a review and comparison with MOFs

“…Some commonly used approaches for MOF thin film preparation are growth from solvothermal mother solutions (using self-assembled monolayers or SAMS), [290][291][292] colloidal deposition, layer-by-layer or liquid phase epitaxy of SURMOFs, [293][294][295][296][297] electrochemical synthesis, [298][299][300][301] evaporation induced crystallization, gel-layer synthesis and microwave-induced thermal deposition. 302,303 If a porous support is used for the separation of an aqueous and an organic solvent, one of the solvents contains the metal ion and the other contains the linker molecule.…”

Ultrafast laser dynamics of metal organic frameworks/TiO2 nano-arrays hybrid composites for energy conversion applications

“…The substrate was washed by the solvent between the successive dipping to remove the unadsorbed reactant molecules. Several LbL cycles were performed to obtain the optimum thickness of the MOF films [18] .…”