We have been attempting to sinter conductive silver ink onto a glass substrate using laser ablation. So we want to know if there are any pre-treatment methods which can enhance the quality of the sintered lines or help in increasing the efficiency of the sintering process.
Aditya Kurdekar
It appears that you're doing this in a difficult manner. I'd be using screen printing.
Dear Aditya
Laser ablation easily removes you silver ink coating. Do you mean you use laser ablation to pattern your silver ink coating films?
Best wishes
Xuhua
Xuhua Wang I am not trying to remove silver ink. Actually I am doing exactly the opposite. My idea is to laser ablate silver nanoparticles to pattern silver lines on a glass substrate.
Thank you.
Aditya
Hi Aditya,
You want to use laser ablation to pattern the silver coating to achieve micropattern, isn't it? Alan suggested the screen printing. It looks like you have the laser tool in your lab already. Your question is whether the pretreatment is necessary to sinister the line before the laser scanning. The answer is not necessary! As long as the silver ink coating becomes conducting, the optimised dosage of laser power is crucial to avoid damaging the coated films.
Alan F Rawle thank you. We are actually looking into screen printing right away.
Xuhua Wang thank you. Based on the suggestion of Dr. Alan, we are actually considering screen printing as the method to move forward.
i think you can use graphite to absorb laser by coating it on the silver paste. You can use a semiconductor layer having a bandgap smaller than the photon energy of the laser.
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