Solution-based colloidal synthesis of hybrid P3HT: Ternary CuInSe2 nanocomposites using a novel combination of capping agents for low-cost photovoltaics |
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| Affiliation: | 1. Key Laboratory for Special Area Highway Engineering of Ministry of Education, School of Highway, Chang’an University, Xi’an 710064, PR China;2. School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, OK 74078, USA;3. School of Mechanics, Civil Engineering and Architecture, Northwestern Polytechnical University, Xi’an 710072, PR China;1. Department of Information Engineering, University of Padova, Padova, Italy;2. Risø National Laboratory for Sustainable Energy, Technical University of Denmark, Roskilde, Denmark;1. Departamento Energía Solar, GIyA, Centro Atómico Constituyentes, CNEA, CONICET Avda. Gral. Paz 1499, San Martín 1650, Buenos Aires, Argentina;2. Escuela de Ciencia y Tecnología, Universidad Nacional de San Martín, Martín de Irigoyen No. 3100, San Martín 1650, Buenos Aires, Argentina;3. Departamento de Electrotecnia (FAIN-UNCo), Buenos Aires 1400, 8300 Neuquén, Provincia de Neuquén, Argentina;4. Instituto de Investigación y Desarrollo en Ingeniería de Procesos, Biotecnología y Energías Alternativas (PROBIEN, CONICET-UNCo), Neuquén, Argentina;1. Low Dimensional Materials Research Centre (LDMRC), Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Department of Electrical Engineering, College of Engineering, Qatar University, P. O. Box 2713, Doha, Qatar;1. Nanotechnology and Advanced Materials Laboratory, Department of Electrical Engineering, Technological-Educational Institute of Western Greece, GR-26334 Patras, Greece;2. Physics Department, University of Patras, GR-26500 Patras, Greece;3. Department of Chemical Engineering, University of Patras, GR-26500 Patras, Greece |
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| Abstract: | In this work, ternary CuInSe2 (CISe) chalcopyrite nanocrystallites efficiently passivated by a novel combination of capping agents viz: aniline and 1-octadecene during chemical route synthesis were dispersed in conducting polymer matrix poly(3-hexylthiophene) (P3HT). By varying the composition and concentration of the ligands, the properties of the resulting CISe nanocrystallites and its corresponding polymer nanocomposites thus could be tailored. The structural, morphological and optical studies accomplished by various complimentary techniques viz. Transmission Electron Microscopy (TEM), Contact angle, Photoluminescence (PL) and Raman have enabled us to compare the different hybrid organic (polymer)-inorganic nanocomposites. On the basis of aniline–octadecene equilibrium phase diagram, the polydispersity of the CISe nanocrystals could be tuned by using controlled variations in the reaction conditions of nucleation and growth such as composition of the solvent and temperature. To the best of author’s knowledge, the beneficial effects of both the capping agents; aniline and octadecene contributing well in tandem in the development of large-sized (100–125 nm) high quality, sterically- and photo-oxidative stable polycrystalline CISe and its corresponding polymer (P3HT):CISe composites with enhanced charge transfer efficiency has been reported for the first time. The low-cost synthesis and ease of preparation renders this method of great potential for its possible application in low-cost hybrid organic–inorganic photovoltaics. |
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| Keywords: | P3HT polymer CISe nanocrystals Nanocomposites Aniline 1-octadecene |
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