scholarly journals Synthesis of nanostructured powders and thin films of iron sulfide from molecular precursors

RSC Advances ◽  
2018 ◽  
Vol 8 (51) ◽  
pp. 29096-29103 ◽  
Author(s):  
Laila Almanqur ◽  
Inigo Vitorica-yrezabal ◽  
George Whitehead ◽  
David J. Lewis ◽  
Paul O'Brien

Iron(iii) xanthate single-source precursors were used to deposit iron sulfide thin films and nanostructures by spin coating and solid state deposition.

2010 ◽  
Vol 49 (18) ◽  
pp. 8495-8503 ◽  
Author(s):  
Karthik Ramasamy ◽  
Mohammad A. Malik ◽  
Madeline Helliwell ◽  
Floriana Tuna ◽  
Paul O’Brien

2019 ◽  
Vol 6 (10) ◽  
pp. 190943 ◽  
Author(s):  
S. A. Saah ◽  
N. O. Boadi ◽  
D. Adu-Poku ◽  
C. Wilkins

Lead ethyl dithiocarbamates have been successfully used as single-source precursors for the deposition of PbS using spin coating followed by annealing at moderate temperatures. The thin films were characterized using a powder X-ray diffractometer and were found to be face-centred cubic with the (200) plane being the most preferred orientation. Scanning electron microscopy images showed the formation of well-defined cubes. Optical band gaps of PbS thin films were estimated using Tauc plots as 0.72, 0.73 and 0.77 eV at annealing temperatures of 250, 300 and 400°C. These band gaps were all blue shifted from the bulk value of 0.41 eV. Energy-dispersive X-ray analysis was used to determine the composition of the thin films which showed an approximately 1 : 1 Pb to S ratio.


2012 ◽  
Vol 346 (1) ◽  
pp. 106-112 ◽  
Author(s):  
Masood Akhtar ◽  
Ahmed Lutfi Abdelhady ◽  
M. Azad Malik ◽  
Paul O'Brien

2016 ◽  
Vol 45 (6) ◽  
pp. 2647-2655 ◽  
Author(s):  
Sixberth Mlowe ◽  
David J. Lewis ◽  
Mohammad Azad Malik ◽  
James Raftery ◽  
Egid B. Mubofu ◽  
...  

A series of iron(iii) heterocyclic dithiocarbamate complexes were synthesized and characterized and were used as single source precursors to deposit iron sulfide thin films.


1999 ◽  
Vol 606 ◽  
Author(s):  
Paul O'Brien ◽  
David J. Otway ◽  
Jin-Ho Park

AbstractDialkyl (or mixed alkyl)-dithiocarbamato iron(III) complexes have been used for the deposition of iron sulfide thin films using chemical vapor deposition techniques. The single-source precursors used in this work have been prepared by the reaction of FeCl3with dialkyldithiocarbamate sodium salts and characterized by a number of analytical techniques. Good quality thin films of FeS2 have been prepared from the single-source metal organic precursor, [Fe(S2CNMeiPr)3], by AACVD. XRD patterns of the films indicated crystalline iron sulfide (FeS2) grown at between 375 – 450 °C. SEM images show the films to have reasonable morphology and to be crystalline.


2006 ◽  
Vol 16 (10) ◽  
pp. 966-969 ◽  
Author(s):  
Shivram S. Garje ◽  
Jamie S. Ritch ◽  
Dana J. Eisler ◽  
Mohammad Afzaal ◽  
Paul O'Brien ◽  
...  

1999 ◽  
Vol 606 ◽  
Author(s):  
Mike R. Lazell ◽  
Paul O'brien ◽  
David J. Otway ◽  
Jin-Ho Park

AbstractSeveral single-source precursors including In(SOCNiBu2)3, In(S2CNMeHex)3 and Ga(S2CNMeR)3, (R = Et, Bu, Hex) have been prepared and used for the deposition of Group 13 metal sulfide thin films. The α and β-In2S3thin films on borosilicate glass and oc-Ga 2S3thin films on GaAs(111) single crystal substrates were prepared from the precursors by various chemical vapour deposition (CVD) techniques. These semicondcuting materials have been characterized by XRD, SEM, XPS and EDAX.


2018 ◽  
Vol 47 (31) ◽  
pp. 10536-10543 ◽  
Author(s):  
Kelly Rees ◽  
Emanuela Lorusso ◽  
Samuel D. Cosham ◽  
Alexander N. Kulak ◽  
Geoffrey Hyett

Combining single-source precursors in aerosol assisted CVD allows control of the composition of mixed anion titanium oxynitride thin films.


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