Novel single pot synthesis of metal (Pb, Cu, Co) sulfide nanomaterials -Towards a quest for paintable electrode materials that supersedes Pt electrode

A, Daya Mani and M, Deepa and Ghosal, P and Ch, Subrahmanyam (2014) Novel single pot synthesis of metal (Pb, Cu, Co) sulfide nanomaterials -Towards a quest for paintable electrode materials that supersedes Pt electrode. Electrochimica Acta, 139. pp. 365-373. ISSN 0013-4686

[img]
Preview
Text
mmc1.pdf - Supplemental Material

Download (640kB) | Preview

Abstract

Novel single pot selective stoichiometric synthesis of cobalt, copper and lead sulfide nanomaterials has been carried out in an energy and time efficient manner by using combustion synthesis for the first time without using surfactants, capping agents and inert atmospheric conditions. X-ray diffraction and transmission electron microscope revealed the formation of respective nanocrystalline metal sulfides with different stoichiometry, whereas, electrochemical impedance analyses confirmed the low charge transfer resistance of all metal sulfide counter electrodes when compared to the Pt counter electrode, indicating their potential to be used as electrode materials. The efficiency of metal sulfide counter electrodes was tested in quantum dot sensitized solar cells (QDSSC) by applying the metal sulfide paint on fluorine doped tin oxide (FTO) plates. Current-voltage characteristics ratified the solar conversion efficiencies of 0.85, 1.3, 0.91 and 0.25, respectively for PbS (2), CuS (3), CoS (2) and Pt counter electrodes with CdS/TiO2 (1:1) working electrode and Na2S electrolyte. Thus the present study furnishes a novel method for the synthesis of metal sulfides as efficient paintable counter electrodes that can overcome Pt as counter electrode in QDSSC.

[error in script]
IITH Creators:
IITH CreatorsORCiD
M, DeepaUNSPECIFIED
Ch, SubrahmanyamUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: combustion synthesis; copper sulfide; cobalt sulfide; lead sulfide
Subjects: Chemistry > Organic chemistry
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 12 Nov 2014 06:29
Last Modified: 18 Oct 2017 09:34
URI: http://raiith.iith.ac.in/id/eprint/732
Publisher URL: https://doi.org/10.1016/j.electacta.2014.07.009
OA policy: http://www.sherpa.ac.uk/romeo/issn/0013-4686/
Related URLs:

Actions (login required)

View Item View Item
Statistics for RAIITH ePrint 732 Statistics for this ePrint Item