Synthesis and Characterization of Copper Indium Gallium Diselenide (CIGS) Nano-Crystalline Powder using SPEX Mill

Authors Priya S. Suryavanshi1, N.P. Kumar2, B.R. Rehani2, C.J. Panchal1 , S.G. Deshmukh3

1Applied Physics Department, Faculty of Technology and Engineering, The M. S. University of Baroda, 390001 Vadodara, Gujarat, India

2Centre for Chemical Sciences and Technology, Institute of Science and Technology, Jawaharlal Nehru Technological University, 500085 Hyderabad, Telangana, India

3SKN Sinhgad College of Engineering, Korti, 413304 Pandharpur, Maharashtra, India

Issue Volume 12, Year 2020, Number 2
Dates Received 15 February 2020; revised manuscript received 12 April 2020; published online 25 April 2020
Citation Priya S. Suryavanshi, N.P. Kumar, B.R. Rehani, et al., J. Nano- Electron. Phys. 12 No 2, 02045 (2020)
PACS Number(s) 61.43.Gt, 81.07.Wx
Keywords CIGS (11) , Nanocrystalline powder, SPEX mill, EDAX (9) .

The CuIn1 – xGaxSe2 (CIGS) (x ( 0.3) nanocrystalline powder was synthesized by reacting to its constituent elements i.e. Copper, Indium, Gallium, and Selenium in a SPEX mill. The SPEX mill is a high-energy mill where the reaction between constituent elements takes place in solid-state to form a nanocrystalline compound powder. SPEX mill consists of tungsten lined hardened steel vials and tungsten carbide balls are used as grinding media. Three different size grinding media was used with ball to charge ratio of 10 : 1. The optimization of milling time was studied to obtain CIGS nanocrystalline powder using SPEX mill. The phase analysis by X-ray diffraction shows the formation chalcopyrite (tetragonal) structure of CIGS after 4 h of high-energy milling with an average crystallite size of 10-13 nm. Raman spectra peak at 174 cm – 1 confirms the formation of the CIGS phase. The compositional analysis by EDAX confirms the formation of the stoichiometric composition of CIGS. This study reveals that it is possible to synthesize CIGS nanocrystalline powder using SPEX mill.

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