研究目的
Exploring the feasibility of different laser systems to sinter screen-printed lines from non-conductive copper nanoparticles (Cu NPs) on polyethylene terephthalate polymer film for manufacturing functional printed electronics for large-area applications.
研究成果
The study successfully identifies optimal parameters for sintering Cu NPs using different laser systems, achieving low resistivity and high processing speed. The quality of the sintered tracks is quantified, and the laser sintering mechanisms under different wavelengths are analyzed. Practical considerations for improving the laser sintering process are discussed.
研究不足
The study focuses on the sintering of Cu NPs on PET polymer film using specific laser systems. The applicability of the findings to other materials or laser systems is not explored. The study also does not address the long-term stability or durability of the sintered tracks.
1：Experimental Design and Method Selection:
Optical and thermal characterization of the materials to identify suitable laser sources and process conditions. Four different laser systems are explored: Direct diode (808 nm), Nd:YAG (1064 nm and second harmonic of 532 nm), and ytterbium fiber (1070 nm) lasers.
2：Sample Selection and Data Sources:
Screen-printed strips of Cu NPs on PET polymer film.
3：List of Experimental Equipment and Materials:
UV-Vis-NIR Shimadzu spectrophotometer, TGA Q500 analyzer, DSC Q200 calorimeter, Carl Zeiss EVO50 SEM with EDX, Olympus MX51 Optical Microscope, Veeco Dektak 150, digital multimeter (Fluke, USA), thermal power meter (Coherent, FieldMaxII-TOP).
4：Experimental Procedures and Operational Workflow:
Laser sintering under different process conditions, including wavelengths, pulse durations, and laser beam optical parameters.
5：Data Analysis Methods:
Measurement of electrical resistance, SEM and EDX analysis for elemental composition, optical microscopy analysis.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
