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VGU RESEARCH REPOSITORY


Please use this identifier to cite or link to this item: https://epub.vgu.edu.vn/handle/dlibvgu/2106
Title: Investigation of technology processes for manufacturing flexible printed solar panel on R2R manufacturing system
Authors: Tran Anh Khoa 
Keywords: Roll-to-roll manufacturing;Flexible printed solar panels;Printed photovoltaics;Thin-film solar cells;Process optimization
Issue Date: 2024
Abstract: 
The world’s energy demand is growing rapidly, which accelerates the depletion of natural resources. Solar power, a well-known renewable energy source, is a promising alternative to contribute to global energy demand. Organic photovoltaics (OPVs), a third-generation solar technology, are receiving significant attention due to their cost-effectiveness and rapid manufacturability using ITO-glass substrates and spin-coating techniques. Despite achieving efficiencies exceeding 10%, OPVs are not yet ready for real-world applications, as research in this field remains limited to laboratory-scale devices. This thesis outlines roll-to-roll (R2R) production techniques suitable for scaling up OPV technology to module sizes capable of actual energy generation, even at efficiencies below 2%. The main organic solar cell model employed in this thesis is a novel ITO-free design developed by Markus Hösel et al., which utilizes an innovative electrode structure named Flextrode. This electrode consists of three layers: silver grids, PEDOT:PSS, and ZnO. The silver grid electrode is printed using flexographic printing, PEDOT:PSS is deposited via rotary screen printing, and ZnO is fabricated using slot-die coating. The fabrication of this OPV device includes the deposition of an active layer, such as P3HT:PCBM, which serves as the light-absorbing layer on top of the Flextrode structure. The solar cell stack is then completed by adding a combination of PEDOT:PSS and a silver grid as the back electrode through rotary screen printing under ambient conditions. This construction allows the fabrication process to reach a production speed of 25 m/min for specific layers.
URI(1): https://epub.vgu.edu.vn/handle/dlibvgu/2106
Rights: https://creativecommons.org/licenses/by-nc/4.0/
Appears in Collections:Global Production Engineering & Management (GPEM)

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