Fabrication of Cu2ZnSnS4 Light Absorber Using a Cost-Effective Mechanochemical Method for Photovoltaic Applications |
| |
| Authors: | Meenakshi Sahu Vasudeva Reddy Minnam Reddy Bomyung Kim Bharati Patro Chinho Park Woo Kyoung Kim Pratibha Sharma |
| |
| Institution: | 1.Department of Energy Science and Engineering, Indian Institute of Technology Bombay Powai, Mumbai 400076, India;2.Korea Institute of Energy Technology (KENTECH), 200 Hyukshin-ro, Naju 58330, Korea;3.School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea; (V.R.M.R.); (B.K.);4.Centre for Research in Nanotechnology and Sciences Indian Institute of Technology Bombay Powai, Mumbai 400076, India; |
| |
| Abstract: | In the present study, we adopt an easy and cost-effective route for preparing Cu2ZnSnS4 (CZTS)-absorber nanoparticles by a mechanochemical method using non-toxic and environmentally benign solvents (butanol, methyl ethyl ketone, and ethanol). The gram-scale synthesis of absorber nanoparticles was achieved in a non-hazardous, zero-waste process without using high-vacuum equipment. The effects of annealing and Na incorporation on the properties of spin-coated CZTS thin films were scrutinized. The deposited samples showed kesterite crystal structure and single phase. The morphological results revealed an improvement in the surface morphology after annealing. The optical bandgaps of the thin films lied in the range of 1.50–1.57 eV with p-type nature. Finally, photovoltaic devices were fabricated, and their cell performance parameters were studied. An efficiency of 0.16% was observed. The present study provides a potential route for the cost-effective fabrication of CZTS-based photovoltaic devices. |
| |
| Keywords: | Cu2ZnSnS4 mechanochemical method annealing photovoltaic application |
|
|
