Synthesis and utilization of platinum(II) dialkyldithiocarbamate precursors in aerosol assisted chemical vapor deposition of platinum thin films as counter electrodes for dye-sensitized solar cells

Ehsan, Muhammad Ali; Younas, Muhammad; Rehman, Abdul; Altaf, Muhammad; Khan, Mohd Yusuf; Al‐Ahmed, Amir; Ahmad, Saeed; Isab, Anvarhusein A.

doi:10.1016/j.poly.2019.03.058

Cited by 23 publications

(5 citation statements)

References 46 publications

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“…600 °C or above, sulfur is lost and thin films of platinum result. 192,193 In this way, [Pt(S 2 CN i Bu 2 ) 2 ] has recently been used to generate thin films of platinum nanoparticles of ca. 5−7 nm diameter on Ti foil and Ni foam substrates.…”

Section: Groupmentioning

confidence: 99%

“…O’Brien and co-workers first used [Pt(S 2 CNMeHex) 2 ] to deposit thin films of PtS, and other groups have reported similar findings. , If heated to ca. 600 °C or above, sulfur is lost and thin films of platinum result. , In this way, [Pt(S 2 CN i Bu 2 ) 2 ] has recently been used to generate thin films of platinum nanoparticles of ca. 5–7 nm diameter on Ti foil and Ni foam substrates.…”

Section: Binary Sulfidesmentioning

confidence: 99%

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Dithiocarbamate Complexes as Single Source Precursors to Nanoscale Binary, Ternary and Quaternary Metal Sulfides

2021

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Nanodimensional metal sulfides are a developing class of low-cost materials with potential applications in areas as wide-ranging as energy storage, electrocatalysis, and imaging. An attractive synthetic strategy, which allows careful control over stoichiometry, is the single source precursor (SSP) approach in which well-defined molecular species containing preformed metal–sulfur bonds are heated to decomposition, either in the vapor or solution phase, resulting in facile loss of organics and formation of nanodimensional metal sulfides. By careful control of the precursor, the decomposition environment and addition of surfactants, this approach affords a range of nanocrystalline materials from a library of precursors. Dithiocarbamates (DTCs) are monoanionic chelating ligands that have been known for over a century and find applications in agriculture, medicine, and materials science. They are easily prepared from nontoxic secondary and primary amines and form stable complexes with all elements. Since pioneering work in the late 1980s, the use of DTC complexes as SSPs to a wide range of binary, ternary, and multinary sulfides has been extensively documented. This review maps these developments, from the formation of thin films, often comprised of embedded nanocrystals, to quantum dots coated with organic ligands or shelled by other metal sulfides that show high photoluminescence quantum yields, and a range of other nanomaterials in which both the phase and morphology of the nanocrystals can be engineered, allowing fine-tuning of technologically important physical properties, thus opening up a myriad of potential applications.

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Section: Groupmentioning

confidence: 99%

Section: Binary Sulfidesmentioning

confidence: 99%

Dithiocarbamate Complexes as Single Source Precursors to Nanoscale Binary, Ternary and Quaternary Metal Sulfides

2021

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“…There has been a lot of research focus on improving the performance of DSSC by modifying different components of DSSC (photoanode, dye, redox couple, and counter electrode). The metal–oxide semiconductors, particularly TiO 2 in photoanode in various doped and composite forms, for example, gold plasmonic nanoarchitectures with titania, 12 barium stannate with titania, 14 silver nanoparticles with titania nanospheres, 15 different light sensitizers like quantum dot sensitizers, perovskite materials, 13 perovskite sensitizers, 16 carbon allotropes with TiO 2 , 17 nano‐sized erbium oxide with titanium oxide, 18 metal–organic frameworks with titania, 19 Ag‐decorated SiO 2 , 21 hybrid co‐sensitizers, various redox mediators, various counter electrode (electro‐catalytic) materials, for example, highly mesoporous carbons, 8 Pt with CVD method, 9 polyaniline/graphene nanocomposites as counter electrode materials, 10 carbon/TiO 2 composite counter electrode, 11 and carbon nanotubes 20 have been tried to improve the performance of DSSC.…”

Section: Introductionmentioning

confidence: 99%

Metal‐organic framework coordinated with cobalt ion as charge recombination retarder in dye‐sensitized solar cells

Younas

Gondal

Dastageer

et al. 2022

Intl J of Energy Research

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The photoanode of the conventional dye-sensitized solar cell (DSSC) is modified, by depositing a layer of cobalt-metallic-ion-coordinated metal-organic framework (Co-MOF199) on top of the regular titanium-dioxide film. The results of electrochemical impedance spectrum (EIS) indicated that the presence of Co-MOF199 layer in the photoanode of DSSC brought about an increase in the electron recombination lifetime (time to the electrons to recombine with the cations) and, consequently, the increase in electron recombination resistance (R rec ) in the photoanode electrolyte interface. The increased recombination resistance is attributed to the efficient retardation of the rapid recombination between photo-induced electrons and transient cations in DSSC. These positive changes in the photoanode electrolyte interface of DSSC resulted in the increase in open-circuit voltage (V oc ), which accounts for the ultimate 20% enhancement in the power conversion efficiency η ð Þ, compared to the conventional DSSC. A total of six Co-MOF199 concentration variants of DSSC configurations coated by soaking and spin coating were fabricated, and it was observed that [TiO 2 + N3/Co-MOF199 (30 mM)/Pt] DSSC configuration

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“…In recent years, there have been renewed interests in the applications of platinum chalcogenides in catalysis, , photodetector, and photocatalysis . Ehsan et al . fabricated Pt thin films from platinum dialkyl dithiocarbamate with high efficiency as counter electrodes in dye-sensitized solar cells.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, there have been renewed interests in the applications of platinum chalcogenides in catalysis, 14,15 photodetector, 16 and photocatalysis. 17 Ehsan et al 18 fabricated Pt thin films from platinum dialkyl dithiocarbamate with high efficiency as counter electrodes in dye-sensitized solar cells. PtS 2 and PtSe 2 are useful materials for electrocatalysis, nanoelectronics, and nano-optoelectronics because of their ultrastability, tunable band gap, high carrier mobility, and electrical conductivity.…”

Section: ■ Introductionmentioning

confidence: 99%

Morphological Studies, Photocatalytic Activity, and Electrochemistry of Platinum Disulfide Nanoparticles from Bis(morpholinyl-4-carbodithioato)-platinum(II)

2020

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Bis(morpholinyl-4-carbodithioato)-platinum(II) was synthesized and characterized using spectroscopic techniques and single-crystal X-ray crystallography. The Pt(II) complex crystallized in a monoclinic space group P 2 1 / n with a Pt(II) ion located on an inversion center coordinated two morpholinyl dithiocarbamate ligands that are coplanar to form a slightly distorted square planar geometry around the Pt(II) ion. The complex was thermolyzed at 120, 180, and 240 °C to prepare PtS 2 nanoparticles. Powder X-ray diffraction patterns confirmed the hexagonal crystalline phase for the as-prepared PtS 2 nanoparticles irrespective of thermolysis temperature. Bead-like shaped PtS 2 - 120 nanoparticles with a particle size in the range of 12.46–64.97 nm were formed at 120 °C, while PtS 2 - 180 prepared at 180 °C is quasi-spherical in shape with particles in the range of 24.30–46.87 nm. The PtS 2 - 240 obtained at 240 °C is spherical with particles in the range of 11.45–46.85 nm. The broad emission maxima of the as-prepared PtS 2 nanoparticles are ascribed to the particles’ broad size distributions. The photocatalytic degradation of methylene blue by the PtS 2 nanoparticles shows a maximum efficiency of 87% for PtS 2 - 240 after 360 min. The effects of photocatalytic dosage, irradiation time, pH medium, and scavengers were also evaluated. Cyclic voltammetry of the PtS 2 nanoparticles showed a reversible redox reaction, while the electrochemistry of the as-prepared PtS 2 indicates that the electron transfer process is diffusion-controlled.

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Synthesis and utilization of platinum(II) dialkyldithiocarbamate precursors in aerosol assisted chemical vapor deposition of platinum thin films as counter electrodes for dye-sensitized solar cells

Cited by 23 publications

References 46 publications

Dithiocarbamate Complexes as Single Source Precursors to Nanoscale Binary, Ternary and Quaternary Metal Sulfides

Dithiocarbamate Complexes as Single Source Precursors to Nanoscale Binary, Ternary and Quaternary Metal Sulfides

Metal‐organic framework coordinated with cobalt ion as charge recombination retarder in dye‐sensitized solar cells

Morphological Studies, Photocatalytic Activity, and Electrochemistry of Platinum Disulfide Nanoparticles from Bis(morpholinyl-4-carbodithioato)-platinum(II)

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