Organic-inorganic metal halide perovskite solar cells were fabricated by laminating films of a carbon nanotube (CNT) network onto CH3NH3PbI3 substrate as hole collector, bypassing the energy-consuming vacuum process deposition. In absence an organic hole-transporting material and contact, CNTs formed cell with efficiency up to 6.87%. The CH3NH3PbI3/CNTs semitransparent showed photovoltaic output dual side illuminations due transparency CNT electrode. Adding spiro-OMeTAD forms composite...

To alleviate the limitations of pure sulfide Cu 2 ZnSnS 4 (CZTS) thin film, such as band gaps adjustment, antisite defects, secondary phase and microstructure, Cadmium is introduced into CZTS film to replace Zn partially form 1− x Cd SnS (CZCTS) by low‐cost sol–gel method. It demonstrated that crystal structure CZCTS films are affected change in Zn/Cd ratio. In addition, ZnS can be decreased grain sizes improved some degree partial replacement with film. The power conversion efficiency solar...

Photocorrosion, that causes rapid deactivation of Cu2O photocatalysts, was addressed by incorporating this oxide in a composite with reduced graphene which acts as an electron acceptor to extract photogenerated electrons from Cu2O. Cu2O–rGO engineering also allows enhancing significantly photocatalytic activities for H2 generation.

Nanomaterials as anode for lithium-ion batteries (LIB) have gained widespread interest in the research community. However, scaling up and processibility are bottlenecks to further commercialization of these materials. Here, we report that bulk antimony sulfide with a size 10–20 μm exhibits high capacity stable cycling 800 mAh g−1. Mechanical chemical stabilities electrodes ensured by an optimal electrode-electrolyte system design, polyimide-based binder together fluoroethylene carbonate...

We have introduced functionalized multiwalled carbon nanotubes (CNTs) in donor/acceptor-type photovoltaic devices. fabricated the devices based on heterostructure between polymer-CNT composite and buckminsterfullerene (C60) layers. Due to functional groups of CNTs, a homogeneous blend CNT-polymer could be obtained. In composite, acted as exciton dissociation sites also hopping centers for hole transport. The CNTs polymer-CNT∕C60 device provided higher volume increased mobility carrier...

In situ Ag nanoparticles are produced on reduction of Ag+ with N,N-dimethylformamide in the presence poly(vinylidene fluoride) (PVF2). The plasmon band transition is monitored time reaction mixture for three sets experiments by UV-vis spectroscopy. absorbance increases sigmoidally log(time). Analysis data Avrami equation yields an exponent n value between 1.5 and 2.0, indicating two-dimensional nucleation linear or diffusion controlled growth. TEM study polymer nanocomposites (PNC) indicates...

We describe a method for conformal coating of reduced graphene oxide (rGO) by stibnite nanocrystallites. First, (GO) supported amorphous hydroperoxoantimonate was produced using the recently introduced hydrogen peroxide synthesis route. Sulfurization antimonate yielded antimony(V) nanoparticles and sulfur, which were then converted high temperature vacuum treatment to 15–20 nm rGO stibnite. The usefulness new material approach are demonstrated highly efficient stable lithium battery anodes....

In this Article, we report a strategy to perform in situ incorporation of oxygen evolution catalyst, Co3O4, during hydrothermal growth Fe2O3 nanorod arrays. It was found that the highest photocurrent increase and onset potential shift observed with 5% Co2+. The density increases from 0.72 for pristine 1.20 mA/cm2 at 1.23 V versus RHE (i.e., 67% improvement) Co2+ added. Concomitant improvement by ∼40 mV improvements incident-photon-to-current efficiencies evolution. Hematite photoanodes...

We reported herein a facile and scalable preparation process for MoS(2)-decorated Zn(x)Cd(1-x)S hybrid photocatalysts hydrogen generation. nanopowder was first prepared from commercially available precursors employing solution based process. MoS(2) evolution reaction catalyst then loaded onto the via photo-assisted deposition which employed mild conditions (room temperature, atmospheric pressure visible light illumination). Thus, this represents an important advantage in large scale...

Single-source precursor, [(Ph3P)CuIn(SC{O}Ph)4] (1), and dual-source precursors, [Cu(SC{O}Ph)] (2) [In(bipy)(SC{O}Ph)3] (3), have been used to obtain the monodispersed wurtzite (hexagonal) zincblende (also called sphalerite, cubic) phases of copper indium sulfide nanocrystals (CIS NCs). The NCs characterized by X-ray powder diffraction patterns, transmission electron microscopy, selected area diffraction, energy-dispersive analysis. It is shown that relative ratios surfactants influence on...

Co and Ni-nanoclusters are attractive alternatives to Pt catalysts for hydrogen generation. These earth abundant elements when loaded onto the TiO2 nanopowders surface act as efficient co-catalysts. Co, Ni-decorated photocatalysts display only three (3) times lower catalytic activities H2 evolution under UV illumination compared with Pt-decorated photocatalysts.

A solution processed method for fabricating transition metal sulfides on fluorine doped tin oxide (FTO) as efficient counter electrodes in iodine/iodide based solar cells has been demonstrated. Conversion efficiencies of 7.01% and 6.50% were obtained nickel cobalt sulfides, respectively, comparable to the conventional thermally platinised FTO (7.32%). charge transfer resistance Ni3S2 Co8.4S8 Pt was found be a key factor such high efficiencies. Cyclic voltammetry, Kelvin probe microscopy,...

A novel approach to produce earth-abundant Cu2FeSnS4 (CFTS) thin film using spray pyrolysis of nontoxic aqueous precursors followed by sulfurization is reported. The CFTS phase formation was confirmed both Raman spectroscopy and X-ray diffraction techniques. Hall measurements these films reveal p-type conductivity with good charge carrier density mobilities appropriate for solar harvesting devices. To the best our knowledge, this first report on electrical properties solution-processed...

A highly stable sodium ion battery anode was prepared by deposition of hydroperoxostannate on graphene oxide from hydrogen-peroxide-rich solution followed sulfidization and 300 °C heat treatment. The material characterized electron microscopy, powder X-ray diffraction photoelectron spectroscopy which showed that the active is mostly rhombohedral SnS2 whose (001) planes were preferentially oriented in parallel to sheets. exhibited >610 mA h g−1 charge capacity at 50 (with >99.6% charging...

Mild-mannered catalyst: A novel procedure to load a MoS2 co-catalyst onto the surface of silicon under mild-conditions (room temperature, atmospheric pressure, aqueous solution) by photo-assisted electrodeposition process employing commercially available precursors is reported. The obtained [email protected]2 photocathode showed similar catalytic activity for light-driven H2 generation compared with protected] (see scheme). Detailed facts importance specialist readers are published as...

A one-pot method has been employed to synthesize the nanocrystals of In2S3, ZnIn2S4, and CdIn2S4. The single-source precursor [In(bipy)(SC{O}Ph)3] used for making In2S3 nanocrystals. On other hand, [Zn(SC{O}Ph)2]·2H2O or [Cd(SC{O}Ph)2]·2H2O was reacted with decomposed make corresponding ternary metal indium sulfides. have characterized by X-ray powder diffraction (XRPD), transmission (TEM) scanning electron microscopies (SEM), selected area (SAED) patterns, energy-dispersive analysis (EDX)....

A high open circuit voltage close to 1.4 V is achieved when carbon nanotubes are used as a hole conductor in methyl ammonium lead bromide perovskite solar cells.