Skip to main content

Open Access Optical and Electrical Properties of Wurtzite Copper Indium Sulfide Nanoflakes

Download Article:
(PDF 4,560.4 kb)


Raman spectroscopic analysis and Hall measurement of wurtzite copper indium sulfide (CuInS2) were carried out. Nanocrystalline wurtzite CuInS2 (CIS) was synthesized by a solvothermal reaction route for these studies. It is observed that the amount of sulfur source, time and temperature of the reaction are the key to control wurtzite phase formation of CuInS2. Wurtzite nanoflakes were formed at 150 °C, with ethylenediamine as the selected solvent and the ratio of Cu:In:S precursor was kept at 1.1:1:5. The Hall measurement resulted in sheet resistivity, ρ, of ∼2 × 105 Ω/sq, Hall coefficient of ∼10 m2/C, mobility of ∼0.5 cm2/V-s and hole concentration of ∼7 × 1013/cm2. Slight shift in the Raman spectra of 1–2 cm−1 was observed between wurtzite and roquesite CuInS2 and was attributed to the stoichiometric variation in Cu/In and/or changes in the chemical environments of the two crystal structures.


Document Type: Research Article


Publication date: December 1, 2012

More about this publication?
  • Materials Express is a peer-reviewed multidisciplinary journal reporting emerging researches on materials science, engineering, technology and biology. Cutting-edge researches on the synthesis, characterization, properties, and applications of a very wide range of materials are covered for broad readership; from physical sciences to life sciences. In particular, the journal aims to report advanced materials with interesting electronic, magnetic, optical, mechanical and catalytic properties for industrial applications.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Ingenta Connect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more