Preparation and characteristics of CuInSe2 thin films by dip-coating method using its nanocrystal ink |
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| Authors: | Weidong Wang Zhengguo Jin Hui Liu Haiyan Du |
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| Affiliation: | 1. School of Materials Science and Engineering, Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin 300072, PR China;2. Analysis and Measurement Center, Tianjin University, Tianjin 300072, PR China;1. Laboratory of Nanotechnology and Solar Energy, P.O. Box 6154, Chemistry Institute, University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil;2. DST/NRF Centre of Excellence in Strong Materials University of the Witwatersrand, PO Wits, 2050, Johannesburg, South Africa;3. Molecular Sciences Institute, School of Chemistry, University of the Witwatersrand, PO Wits, 2050, Johannesburg, South Africa;4. Department of Chemistry and Polymer Sciences, Stellenbosch University, Stellenbosch, 7600, Western Cape, South Africa;1. Catalonia Institute for Energy Research, IREC, Jardins de les Dones de Negre 1, 08930 Sant Adrià de Besòs, Barcelona, Spain;2. Franscisco Albero, S.A.U. (FAE), Rafael Barradas 19, 08908 Hospitalet de Llobregat, Barcelona, Spain;1. Chung-Ang University, Department of Physics, Seoul 156-756, Republic of Korea;2. LG Innotek, Gyeonggi-do, Ansan-si 426-791, Republic of Korea;1. Department of Electrical Engineering (SEES), CINVESTAV-IPN, Avenida IPN 2508, San Pedro Zacatenco, Mexico D.F, Mexico;2. Program on Nanoscience and Nanotechnology, CINVESTAV-IPN, Avenida IPN 2508, San Pedro Zacatenco, Mexico D.F, Mexico;1. Lesya Ukrainka Eastern European National University, 43025 Lutsk, Ukraine;2. Semiconductor Physics Department and Institute of Applied Research, Vilnius University, Vilnius, Lithuania, LT-10222 |
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| Abstract: | Nanocrystal ink-coating technique is a low cost, less pollution, and non-vacuum solution based processing to produce CIS absorbing layers for photovoltaics, leading to low fabrication cost and eco-friendly process of solar cells. In this work, highly crystallized chalcopyrite CuInSe2 (CIS) nanocrystals were synthesized by a green and cheap air pressure hot injection method using 1-Methyl-2-pyrrolidinone and glycerol mixed solvent, and copper chloride, indium chloride and selenium dioxide as precursors. The synthesized CIS nanocrystals were used to prepare colloidal nanocrystal inks by dispersing them ultrasonically in absolute alcohol and deposit CIS thin films by dip-coating nanocrystal inks. Basic characterization data of the synthesized CIS nanocrystals and the ink-coated thin films were described by XRD, TEM, FESEM, EDS, UV–vis–NIR, and Hall measurements. |
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