Pacific Rim Symposium on Surfaces, Coatings and Interfaces (PacSurf 2014)
    Energy Harvesting & Storage Tuesday Sessions
       Session EH-TuP

Paper EH-TuP12
Formation of CuInSe2 from Cu-Se and In-Se binary compounds by wet process for solar cell application

Tuesday, December 9, 2014, 4:00 pm, Room Mauka

Session: Energy Harvesting & Storage Poster Session
Presenter: Hyungmin Lee, Yeungnam University, Republic of Korea
Authors: H. Lee, Yeungnam University, Republic of Korea
D.-S. Jeong, Yeungnam University, Republic of Korea
C. Park, Yeungnam University, Republic of Korea
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CIS was synthesized from binary compound of CuCl, InCl and selenium powder using alcohols as solvent. CIS thin film was prepared by mixing powders of Cu-Se and In-Se binary phase and heat treatment. The binary precursors such as CuSe, InSe and In2Se3 were synthesized using facile chemical route from suitable resources at different stoichiometric ratios. And then, high-quality CIS absorption layer was formed by using three binary compounds. The properties of CIS films were studied and characterized, systemically. The structural and optical properties of CIS films were studied by using X-ray Diffraction, photoluminescence (PL), and UV-Vis. The surface morphological property of the films was also recorded by Scanning Electron Microscope (SEM). The CIS solar cells having the structure of Soda lime glass (SLG) / Mo / CIS / CdS / i-ZnO / Al-doped ZnO (AZO) / Al metal grid was then fabricated. The solar cells' current density-voltage (J-V) characteristics were investigated both in the dark and under AM1.5G illumination by a solar simulator (Keithley 69911). Keywords: CuInSe2, Binary compound, Solar cell, Wet process, Photoluminescence Acknowledgment This work was supported by the New & Renewable Energy Core Technology Program of the Korea Institute of Energy Technology Evaluation (No. 20133030011330) and the Human Resources Development Program (No. 20104010100580) Planning (KETEP), granted financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea.