Jump to main content
Jump to site search

Issue 29, 2015
Previous Article Next Article

Effect of precursor concentration on the properties and tuning of conductivity between p-type and n-type Cu1−XCdXS2 thin films deposited by a single step solution process as a novel material for photovoltaic applications

Author affiliations

Abstract

Cu1−XCdXS2 thin films were deposited from precursor solutions having different concentrations of cation sources, by a single step solution process at room temperature. The colours of the deposited films changed from light to dark brown based on the incorporation of copper and cadmium ions from the precursors. Cu1−XCdXS2 polycrystalline thin films exhibit a hexagonal structure. Cd rich films showed a sheet like morphology and poor adhesiveness owing to a cluster growth process. Wider absorption in the region 300–1300 nm was observed with a red shift in the absorption edge as the composition of Cd increased. A relative increase in the Cd composition of deposited Cu1−XCdXS2 thin films was observed as the precursor concentration of Cd increased. XPS and Raman spectra confirmed the formation of a CuCdS2 compound. Electrical properties showed the decrease in carrier concentration as Cd composition increases. The Cu1−XCdXS2 thin films exhibited both p and n-type conductivity owing to different stoichiometric ratios of cations. The analyses revealed that the Cu1−XCdXS2 thin film can be used as both a novel absorber and window layer for the fabrication of low cost thin film solar cells.

Graphical abstract: Effect of precursor concentration on the properties and tuning of conductivity between p-type and n-type Cu1−XCdXS2 thin films deposited by a single step solution process as a novel material for photovoltaic applications

Back to tab navigation

Publication details

The article was received on 26 Oct 2014, accepted on 24 Feb 2015 and first published on 24 Feb 2015


Article type: Paper
DOI: 10.1039/C4RA12565G
Author version
available:
Download author version (PDF)
Citation: RSC Adv., 2015,5, 23015-23021

  •   Request permissions

    Effect of precursor concentration on the properties and tuning of conductivity between p-type and n-type Cu1−XCdXS2 thin films deposited by a single step solution process as a novel material for photovoltaic applications

    V. Nirmal Kumar, R. Suryakarthick, S. Karuppusamy, M. Gupta, Y. Hayakawa and R. Gopalakrishnan, RSC Adv., 2015, 5, 23015
    DOI: 10.1039/C4RA12565G

Search articles by author

Spotlight

Advertisements