Asset Details
Do you wish to reserve the book?
Laser‐Induced Shockwaves as a Rapid and Non‐Contact Technique for 2D Patterning of Colloidal Monolayer Crystals
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Laser‐Induced Shockwaves as a Rapid and Non‐Contact Technique for 2D Patterning of Colloidal Monolayer Crystals
Do you wish to request the book?
Laser‐Induced Shockwaves as a Rapid and Non‐Contact Technique for 2D Patterning of Colloidal Monolayer Crystals
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Laser‐Induced Shockwaves as a Rapid and Non‐Contact Technique for 2D Patterning of Colloidal Monolayer Crystals
2024
Overview
A novel approach is reported that harnesses laser‐induced shockwave spallation technique to selectively remove clusters of polystyrene (PS) microspheres from close‐packed monolayers for the creation of 2D colloidal micropatterns. The strategic design of the layer structure by incorporating a thin layer of poly(vinyl alcohol) (PVA) on top of the PS monolayer enables the complete delamination of PS particle clusters. Its use is demonstrated for creating different sizes of circular microscale spallation patterns by regulating the tensile force of the shockwave with laser fluence adjustments. To further control the diameter of the spallation pattern, various shadow masks are utilized to tune the shockwave generation region. The finding reveals that both PVA thickness and spallation force play key roles in adjusting cluster spallation size with complete removal. The study highlights the potential of laser spallation techniques as a rapid and non‐contact method for 2D colloidal crystal patterning by leveraging spatially regulated shockwave spallation forces. A novel approach employing laser spallation techniques to pattern closely packed polystyrene (PS) microspheres is introduced. Laser‐induced shockwaves propagate through the sample, triggering the delamination of PS particles on the sample's rear side, resulting in micro‐hole patterns. The strategic use of a poly(vinyl alcohol) (PVA) layer facilitates complete PS/PVA delamination, forming clear patterns. Pattern size is controlled through laser fluence or shadow masks application.
