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Karthik Ramasamy - One of the best experts on this subject based on the ideXlab platform.
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thio and dithio biuret precursors for zinc sulfide cadmium sulfide and zinc cadmium sulfide thin films
Chemistry of Materials, 2011Co-Authors: Karthik Ramasamy, James Raftery, Madeleine Helliwell, Mohammad Azad Malik, Paul ObrienAbstract:Zinc and cadmium complexes of 1,1,5,5-tetraalkyl-2-4-Dithiobiurets [M(N(SCNR2)2)2] [M = Zn, R = methy (1), ethyl (2) and M = Cd, R = methyl (4), ethyl (5)] and 1,1,5,5-tetraalkyl-2-thiobiurets [M(SON(CNR2)2)2] [M = Zn, R = isopropyl (3) and M = Cd, R = isopropyl (6)] have been synthesized. The single crystal X-ray structures of complexes (2), (3), (4), and (5) were determined. Thermogravimetric analysis confirmed that all six complexes decomposed in a single step to their corresponding metal sulfides. The complexes were used as single source precursors for the deposition of zinc sulfide (ZnS), cadmium sulfide (CdS), and zinc cadmium sulfide (ZnxCd1−xS) thin films by aerosol assisted chemical vapor deposition (AACVD). The zinc complexes (1) and (3) deposited cubic ZnS films with small rods and granular crystallites at 300 and 350 °C, whereas at 400 and 450 °C hexagonal ZnS with granular crystallites were dominant. Complex (2) gave granular hexagonal ZnS films at all deposition temperatures. Cadmium complex...
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Nickel Sulfide Thin Films from Thio- and Dithiobiuret Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Paul O'brien, Madeleine HelliwellAbstract:The nickel(II) complexes of several 1,1,5,5-tetraalkyl-2-thiobiurets (R = methyl (1); methyl, ethyl (2); ethyl (3); isopropyl (4)) and 1,1,5,5-tetraalkyl-2,4-Dithiobiurets (R = methyl (5); methyl, ethyl (6); ethyl (7)) have been synthesized. The single crystal X-ray structures of complexes (1), (3), (4), (6), and (7) have been determined. Thermogravimetric analysis shows all seven complexes decompose in a single step to one or another form of nickel sulfide. The complexes were used as single-source precursors for the deposition of nickel sulfide thin films by aerosol assisted chemical vapor deposition (AACVD) at temperatures between 320 and 480 °C. Complex (1) gave orthorhombic Ni7S6 at all temperatures with spherical tipped wirelike crystallites and plates. Complex (2) gave mixtures of hexagonal Ni17S18 and orthorhombic Ni7S6 with wires and plates. Complex (3) also led to a mixture of hexagonal Ni17S18 and orthorhombic Ni7S6 phases but with platelike crystallites. In contrast complex (4) gave orthorhombi...
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Selective Deposition of Cobalt Sulfide Nanostructured Thin Films from Single-Source Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Floriana Tuna, Paul O'brienAbstract:The cobalt(III) complexes of 1,1,5,5-tetramethyl- and 1,1,5,5-tetraethyl-2,4-Dithiobiuret and the cobalt(II) complex of 1,1,5,5-tetra-iso-propyl-2-thiobiuret have been synthesized. The single-crystal X-ray structure of the thiocyanide (1) and cobalt tetrachlorate (2) salts of the parent cyclized ligand, together with complexes [Co{N(SCNMe2)2}3] (3), [Co{N(SCNEt2)2}3] (4) and [Co{N(SOCNiPr2)2}2] (5) have been determined. The thermal decomposition of 3, 4, and 5 was studied. The complexes were used as single source precursors for the deposition of cobalt sulfide thin films by aerosol assisted chemical vapor deposition (AACVD). The X-ray diffraction (XRD) of the deposited films showed hexagonal Co1−xS from complexes (3) and (4) whereas complex (5) gave a mixture of cubic and hexagonal Co4S3. The morphology of films was characterized by scanning electron microscope (SEM) and showed rod like crystallites from 3, granular crystallites from 4 and stalagmitic structures from 5. Transmission electron microscopy (T...
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Metal complexes of thiobiurets and Dithiobiurets: Novel single source precursors for metal sulfide thin film nanostructures.
Dalton transactions (Cambridge England : 2003), 2009Co-Authors: Karthik Ramasamy, Mohammad Azad Malik, Paul O'brien, James RafteryAbstract:A series of new metal complexes of thiobiurets and Dithiobiurets have been synthesized and characterized. The compounds are potentially useful as novel single source precursors for the deposition of metal sulfide thin films or nanoparticles.
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ZnS, CdS and Zn_xCd_1−xS Thin Films from Zn(II) and Cd(II) Complexes of 1, 1, 5, 5-Tetramethyl -2-4-Dithiobiuret As Single Molecular Precursors
MRS Online Proceedings Library, 2009Co-Authors: Karthik Ramasamy, Mohammad A. Malik, Paul O’brien, James RafteryAbstract:Synthesis of zinc and cadmium complexes of 1, 1, 5, 5-tetramethyl-2-4-Dithiobiuret (M(N(SCNMe_2)_2)_2) (M = Zn, Cd) is described together with X-ray single crystal of cadmium complex. These complexes have been used as a single molecular precursor for the deposition of ZnS, CdS and Zn_xCd_1-xS thin films by aerosol assisted chemical vapour deposition (AACVD) method. Adherent specular films of ZnS and CdS were obtained in the temperature range 300 – 500 °C. Hexagonal Zn_xCd_1-xS films were obtained at 400 °C by varying the precursor concentration. XRD of ZnS films showed cubic to hexagonal phase conversion above 350 °C. SEM showed that the morphology of the films varied depending on the deposition temperature. Films were also characterized by atomic force microscopy (AFM). To the best of our knowledge these complexes are the first in its class to be used as a single molecular precursor to deposit ZnS, CdS, and Zn_xCd_1-xS thin films.
James Raftery - One of the best experts on this subject based on the ideXlab platform.
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thio and dithio biuret precursors for zinc sulfide cadmium sulfide and zinc cadmium sulfide thin films
Chemistry of Materials, 2011Co-Authors: Karthik Ramasamy, James Raftery, Madeleine Helliwell, Mohammad Azad Malik, Paul ObrienAbstract:Zinc and cadmium complexes of 1,1,5,5-tetraalkyl-2-4-Dithiobiurets [M(N(SCNR2)2)2] [M = Zn, R = methy (1), ethyl (2) and M = Cd, R = methyl (4), ethyl (5)] and 1,1,5,5-tetraalkyl-2-thiobiurets [M(SON(CNR2)2)2] [M = Zn, R = isopropyl (3) and M = Cd, R = isopropyl (6)] have been synthesized. The single crystal X-ray structures of complexes (2), (3), (4), and (5) were determined. Thermogravimetric analysis confirmed that all six complexes decomposed in a single step to their corresponding metal sulfides. The complexes were used as single source precursors for the deposition of zinc sulfide (ZnS), cadmium sulfide (CdS), and zinc cadmium sulfide (ZnxCd1−xS) thin films by aerosol assisted chemical vapor deposition (AACVD). The zinc complexes (1) and (3) deposited cubic ZnS films with small rods and granular crystallites at 300 and 350 °C, whereas at 400 and 450 °C hexagonal ZnS with granular crystallites were dominant. Complex (2) gave granular hexagonal ZnS films at all deposition temperatures. Cadmium complex...
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Nickel Sulfide Thin Films from Thio- and Dithiobiuret Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Paul O'brien, Madeleine HelliwellAbstract:The nickel(II) complexes of several 1,1,5,5-tetraalkyl-2-thiobiurets (R = methyl (1); methyl, ethyl (2); ethyl (3); isopropyl (4)) and 1,1,5,5-tetraalkyl-2,4-Dithiobiurets (R = methyl (5); methyl, ethyl (6); ethyl (7)) have been synthesized. The single crystal X-ray structures of complexes (1), (3), (4), (6), and (7) have been determined. Thermogravimetric analysis shows all seven complexes decompose in a single step to one or another form of nickel sulfide. The complexes were used as single-source precursors for the deposition of nickel sulfide thin films by aerosol assisted chemical vapor deposition (AACVD) at temperatures between 320 and 480 °C. Complex (1) gave orthorhombic Ni7S6 at all temperatures with spherical tipped wirelike crystallites and plates. Complex (2) gave mixtures of hexagonal Ni17S18 and orthorhombic Ni7S6 with wires and plates. Complex (3) also led to a mixture of hexagonal Ni17S18 and orthorhombic Ni7S6 phases but with platelike crystallites. In contrast complex (4) gave orthorhombi...
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Selective Deposition of Cobalt Sulfide Nanostructured Thin Films from Single-Source Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Floriana Tuna, Paul O'brienAbstract:The cobalt(III) complexes of 1,1,5,5-tetramethyl- and 1,1,5,5-tetraethyl-2,4-Dithiobiuret and the cobalt(II) complex of 1,1,5,5-tetra-iso-propyl-2-thiobiuret have been synthesized. The single-crystal X-ray structure of the thiocyanide (1) and cobalt tetrachlorate (2) salts of the parent cyclized ligand, together with complexes [Co{N(SCNMe2)2}3] (3), [Co{N(SCNEt2)2}3] (4) and [Co{N(SOCNiPr2)2}2] (5) have been determined. The thermal decomposition of 3, 4, and 5 was studied. The complexes were used as single source precursors for the deposition of cobalt sulfide thin films by aerosol assisted chemical vapor deposition (AACVD). The X-ray diffraction (XRD) of the deposited films showed hexagonal Co1−xS from complexes (3) and (4) whereas complex (5) gave a mixture of cubic and hexagonal Co4S3. The morphology of films was characterized by scanning electron microscope (SEM) and showed rod like crystallites from 3, granular crystallites from 4 and stalagmitic structures from 5. Transmission electron microscopy (T...
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Metal complexes of thiobiurets and Dithiobiurets: Novel single source precursors for metal sulfide thin film nanostructures.
Dalton transactions (Cambridge England : 2003), 2009Co-Authors: Karthik Ramasamy, Mohammad Azad Malik, Paul O'brien, James RafteryAbstract:A series of new metal complexes of thiobiurets and Dithiobiurets have been synthesized and characterized. The compounds are potentially useful as novel single source precursors for the deposition of metal sulfide thin films or nanoparticles.
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ZnS, CdS and Zn_xCd_1−xS Thin Films from Zn(II) and Cd(II) Complexes of 1, 1, 5, 5-Tetramethyl -2-4-Dithiobiuret As Single Molecular Precursors
MRS Online Proceedings Library, 2009Co-Authors: Karthik Ramasamy, Mohammad A. Malik, Paul O’brien, James RafteryAbstract:Synthesis of zinc and cadmium complexes of 1, 1, 5, 5-tetramethyl-2-4-Dithiobiuret (M(N(SCNMe_2)_2)_2) (M = Zn, Cd) is described together with X-ray single crystal of cadmium complex. These complexes have been used as a single molecular precursor for the deposition of ZnS, CdS and Zn_xCd_1-xS thin films by aerosol assisted chemical vapour deposition (AACVD) method. Adherent specular films of ZnS and CdS were obtained in the temperature range 300 – 500 °C. Hexagonal Zn_xCd_1-xS films were obtained at 400 °C by varying the precursor concentration. XRD of ZnS films showed cubic to hexagonal phase conversion above 350 °C. SEM showed that the morphology of the films varied depending on the deposition temperature. Films were also characterized by atomic force microscopy (AFM). To the best of our knowledge these complexes are the first in its class to be used as a single molecular precursor to deposit ZnS, CdS, and Zn_xCd_1-xS thin films.
Mohammad Azad Malik - One of the best experts on this subject based on the ideXlab platform.
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thio and dithio biuret precursors for zinc sulfide cadmium sulfide and zinc cadmium sulfide thin films
Chemistry of Materials, 2011Co-Authors: Karthik Ramasamy, James Raftery, Madeleine Helliwell, Mohammad Azad Malik, Paul ObrienAbstract:Zinc and cadmium complexes of 1,1,5,5-tetraalkyl-2-4-Dithiobiurets [M(N(SCNR2)2)2] [M = Zn, R = methy (1), ethyl (2) and M = Cd, R = methyl (4), ethyl (5)] and 1,1,5,5-tetraalkyl-2-thiobiurets [M(SON(CNR2)2)2] [M = Zn, R = isopropyl (3) and M = Cd, R = isopropyl (6)] have been synthesized. The single crystal X-ray structures of complexes (2), (3), (4), and (5) were determined. Thermogravimetric analysis confirmed that all six complexes decomposed in a single step to their corresponding metal sulfides. The complexes were used as single source precursors for the deposition of zinc sulfide (ZnS), cadmium sulfide (CdS), and zinc cadmium sulfide (ZnxCd1−xS) thin films by aerosol assisted chemical vapor deposition (AACVD). The zinc complexes (1) and (3) deposited cubic ZnS films with small rods and granular crystallites at 300 and 350 °C, whereas at 400 and 450 °C hexagonal ZnS with granular crystallites were dominant. Complex (2) gave granular hexagonal ZnS films at all deposition temperatures. Cadmium complex...
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Nickel Sulfide Thin Films from Thio- and Dithiobiuret Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Paul O'brien, Madeleine HelliwellAbstract:The nickel(II) complexes of several 1,1,5,5-tetraalkyl-2-thiobiurets (R = methyl (1); methyl, ethyl (2); ethyl (3); isopropyl (4)) and 1,1,5,5-tetraalkyl-2,4-Dithiobiurets (R = methyl (5); methyl, ethyl (6); ethyl (7)) have been synthesized. The single crystal X-ray structures of complexes (1), (3), (4), (6), and (7) have been determined. Thermogravimetric analysis shows all seven complexes decompose in a single step to one or another form of nickel sulfide. The complexes were used as single-source precursors for the deposition of nickel sulfide thin films by aerosol assisted chemical vapor deposition (AACVD) at temperatures between 320 and 480 °C. Complex (1) gave orthorhombic Ni7S6 at all temperatures with spherical tipped wirelike crystallites and plates. Complex (2) gave mixtures of hexagonal Ni17S18 and orthorhombic Ni7S6 with wires and plates. Complex (3) also led to a mixture of hexagonal Ni17S18 and orthorhombic Ni7S6 phases but with platelike crystallites. In contrast complex (4) gave orthorhombi...
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Selective Deposition of Cobalt Sulfide Nanostructured Thin Films from Single-Source Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Floriana Tuna, Paul O'brienAbstract:The cobalt(III) complexes of 1,1,5,5-tetramethyl- and 1,1,5,5-tetraethyl-2,4-Dithiobiuret and the cobalt(II) complex of 1,1,5,5-tetra-iso-propyl-2-thiobiuret have been synthesized. The single-crystal X-ray structure of the thiocyanide (1) and cobalt tetrachlorate (2) salts of the parent cyclized ligand, together with complexes [Co{N(SCNMe2)2}3] (3), [Co{N(SCNEt2)2}3] (4) and [Co{N(SOCNiPr2)2}2] (5) have been determined. The thermal decomposition of 3, 4, and 5 was studied. The complexes were used as single source precursors for the deposition of cobalt sulfide thin films by aerosol assisted chemical vapor deposition (AACVD). The X-ray diffraction (XRD) of the deposited films showed hexagonal Co1−xS from complexes (3) and (4) whereas complex (5) gave a mixture of cubic and hexagonal Co4S3. The morphology of films was characterized by scanning electron microscope (SEM) and showed rod like crystallites from 3, granular crystallites from 4 and stalagmitic structures from 5. Transmission electron microscopy (T...
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Metal complexes of thiobiurets and Dithiobiurets: Novel single source precursors for metal sulfide thin film nanostructures.
Dalton transactions (Cambridge England : 2003), 2009Co-Authors: Karthik Ramasamy, Mohammad Azad Malik, Paul O'brien, James RafteryAbstract:A series of new metal complexes of thiobiurets and Dithiobiurets have been synthesized and characterized. The compounds are potentially useful as novel single source precursors for the deposition of metal sulfide thin films or nanoparticles.
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ZnS, CdS and ZnxCd1-xS Thin Films from Zn(II) and Cd(II) Complexes of 1, 1, 5, 5-Tetramethyl-2-4-Dithiobiuret As Single Molecular Precursors
MRS Proceedings, 2008Co-Authors: Karthik Ramasamy, Mohammad Azad Malik, Paul O'brien, James RafteryAbstract:Synthesis of zinc and cadmium complexes of 1, 1, 5, 5-tetramethyl-2-4-Dithiobiuret (M{N(SCNMe 2 ) 2 } 2 ) (M = Zn, Cd) is described together with X-ray single crystal of cadmium complex. These complexes have been used as a single molecular precursor for the deposition of ZnS, CdS and Zn x Cd 1-x S thin films by aerosol assisted chemical vapour deposition (AACVD) method. Adherent specular films of ZnS and CdS were obtained in the temperature range 300 – 500 °C. Hexagonal Zn x Cd 1-x S films were obtained at 400 °C by varying the precursor concentration. XRD of ZnS films showed cubic to hexagonal phase conversion above 350 °C. SEM showed that the morphology of the films varied depending on the deposition temperature. Films were also characterized by atomic force microscopy (AFM). To the best of our knowledge these complexes are the first in its class to be used as a single molecular precursor to deposit ZnS, CdS, and Zn x Cd 1-x S thin films.
Paul O'brien - One of the best experts on this subject based on the ideXlab platform.
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Nickel Sulfide Thin Films from Thio- and Dithiobiuret Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Paul O'brien, Madeleine HelliwellAbstract:The nickel(II) complexes of several 1,1,5,5-tetraalkyl-2-thiobiurets (R = methyl (1); methyl, ethyl (2); ethyl (3); isopropyl (4)) and 1,1,5,5-tetraalkyl-2,4-Dithiobiurets (R = methyl (5); methyl, ethyl (6); ethyl (7)) have been synthesized. The single crystal X-ray structures of complexes (1), (3), (4), (6), and (7) have been determined. Thermogravimetric analysis shows all seven complexes decompose in a single step to one or another form of nickel sulfide. The complexes were used as single-source precursors for the deposition of nickel sulfide thin films by aerosol assisted chemical vapor deposition (AACVD) at temperatures between 320 and 480 °C. Complex (1) gave orthorhombic Ni7S6 at all temperatures with spherical tipped wirelike crystallites and plates. Complex (2) gave mixtures of hexagonal Ni17S18 and orthorhombic Ni7S6 with wires and plates. Complex (3) also led to a mixture of hexagonal Ni17S18 and orthorhombic Ni7S6 phases but with platelike crystallites. In contrast complex (4) gave orthorhombi...
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Selective Deposition of Cobalt Sulfide Nanostructured Thin Films from Single-Source Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Floriana Tuna, Paul O'brienAbstract:The cobalt(III) complexes of 1,1,5,5-tetramethyl- and 1,1,5,5-tetraethyl-2,4-Dithiobiuret and the cobalt(II) complex of 1,1,5,5-tetra-iso-propyl-2-thiobiuret have been synthesized. The single-crystal X-ray structure of the thiocyanide (1) and cobalt tetrachlorate (2) salts of the parent cyclized ligand, together with complexes [Co{N(SCNMe2)2}3] (3), [Co{N(SCNEt2)2}3] (4) and [Co{N(SOCNiPr2)2}2] (5) have been determined. The thermal decomposition of 3, 4, and 5 was studied. The complexes were used as single source precursors for the deposition of cobalt sulfide thin films by aerosol assisted chemical vapor deposition (AACVD). The X-ray diffraction (XRD) of the deposited films showed hexagonal Co1−xS from complexes (3) and (4) whereas complex (5) gave a mixture of cubic and hexagonal Co4S3. The morphology of films was characterized by scanning electron microscope (SEM) and showed rod like crystallites from 3, granular crystallites from 4 and stalagmitic structures from 5. Transmission electron microscopy (T...
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Metal complexes of thiobiurets and Dithiobiurets: Novel single source precursors for metal sulfide thin film nanostructures.
Dalton transactions (Cambridge England : 2003), 2009Co-Authors: Karthik Ramasamy, Mohammad Azad Malik, Paul O'brien, James RafteryAbstract:A series of new metal complexes of thiobiurets and Dithiobiurets have been synthesized and characterized. The compounds are potentially useful as novel single source precursors for the deposition of metal sulfide thin films or nanoparticles.
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ZnS, CdS and ZnxCd1-xS Thin Films from Zn(II) and Cd(II) Complexes of 1, 1, 5, 5-Tetramethyl-2-4-Dithiobiuret As Single Molecular Precursors
MRS Proceedings, 2008Co-Authors: Karthik Ramasamy, Mohammad Azad Malik, Paul O'brien, James RafteryAbstract:Synthesis of zinc and cadmium complexes of 1, 1, 5, 5-tetramethyl-2-4-Dithiobiuret (M{N(SCNMe 2 ) 2 } 2 ) (M = Zn, Cd) is described together with X-ray single crystal of cadmium complex. These complexes have been used as a single molecular precursor for the deposition of ZnS, CdS and Zn x Cd 1-x S thin films by aerosol assisted chemical vapour deposition (AACVD) method. Adherent specular films of ZnS and CdS were obtained in the temperature range 300 – 500 °C. Hexagonal Zn x Cd 1-x S films were obtained at 400 °C by varying the precursor concentration. XRD of ZnS films showed cubic to hexagonal phase conversion above 350 °C. SEM showed that the morphology of the films varied depending on the deposition temperature. Films were also characterized by atomic force microscopy (AFM). To the best of our knowledge these complexes are the first in its class to be used as a single molecular precursor to deposit ZnS, CdS, and Zn x Cd 1-x S thin films.
Madeleine Helliwell - One of the best experts on this subject based on the ideXlab platform.
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thio and dithio biuret precursors for zinc sulfide cadmium sulfide and zinc cadmium sulfide thin films
Chemistry of Materials, 2011Co-Authors: Karthik Ramasamy, James Raftery, Madeleine Helliwell, Mohammad Azad Malik, Paul ObrienAbstract:Zinc and cadmium complexes of 1,1,5,5-tetraalkyl-2-4-Dithiobiurets [M(N(SCNR2)2)2] [M = Zn, R = methy (1), ethyl (2) and M = Cd, R = methyl (4), ethyl (5)] and 1,1,5,5-tetraalkyl-2-thiobiurets [M(SON(CNR2)2)2] [M = Zn, R = isopropyl (3) and M = Cd, R = isopropyl (6)] have been synthesized. The single crystal X-ray structures of complexes (2), (3), (4), and (5) were determined. Thermogravimetric analysis confirmed that all six complexes decomposed in a single step to their corresponding metal sulfides. The complexes were used as single source precursors for the deposition of zinc sulfide (ZnS), cadmium sulfide (CdS), and zinc cadmium sulfide (ZnxCd1−xS) thin films by aerosol assisted chemical vapor deposition (AACVD). The zinc complexes (1) and (3) deposited cubic ZnS films with small rods and granular crystallites at 300 and 350 °C, whereas at 400 and 450 °C hexagonal ZnS with granular crystallites were dominant. Complex (2) gave granular hexagonal ZnS films at all deposition temperatures. Cadmium complex...
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Nickel Sulfide Thin Films from Thio- and Dithiobiuret Precursors
Chemistry of Materials, 2010Co-Authors: Karthik Ramasamy, James Raftery, Mohammad Azad Malik, Paul O'brien, Madeleine HelliwellAbstract:The nickel(II) complexes of several 1,1,5,5-tetraalkyl-2-thiobiurets (R = methyl (1); methyl, ethyl (2); ethyl (3); isopropyl (4)) and 1,1,5,5-tetraalkyl-2,4-Dithiobiurets (R = methyl (5); methyl, ethyl (6); ethyl (7)) have been synthesized. The single crystal X-ray structures of complexes (1), (3), (4), (6), and (7) have been determined. Thermogravimetric analysis shows all seven complexes decompose in a single step to one or another form of nickel sulfide. The complexes were used as single-source precursors for the deposition of nickel sulfide thin films by aerosol assisted chemical vapor deposition (AACVD) at temperatures between 320 and 480 °C. Complex (1) gave orthorhombic Ni7S6 at all temperatures with spherical tipped wirelike crystallites and plates. Complex (2) gave mixtures of hexagonal Ni17S18 and orthorhombic Ni7S6 with wires and plates. Complex (3) also led to a mixture of hexagonal Ni17S18 and orthorhombic Ni7S6 phases but with platelike crystallites. In contrast complex (4) gave orthorhombi...