Abstract
We report the fabrication of nanofeatured polymeric films using nanosphere lithography and ultraviolet (UV) soft-mold roller embossing and show an illuminative example of their application to solar cells. To prepare the nanofeatured template, polystyrene nanocolloids of two distinct sizes (900 and 300 nm) were overlaid on silicon substrates using a spin coater. A lab-made soft-mold roller embossing device equipped with a UV light source was adopted. A casting method was employed to replicate the nanofeatured template onto polydimethylsiloxane, which was used as the soft mold. During the embossing procedure, the roller was driven by a step motor and compressed the UV-curable resin against the glass substrate to form the nanofeatured layer, which was subsequently cured by UV radiation. Polymer films with nanoscaled features were thus obtained. The influence of distinct processing variables on the reproducibility of the nanofeatured films was explored. The empirical outcomes demonstrate that UV soft-mold roller embossing offers a simple yet potent way of producing nanofeatured films.
Highlights
Nanotechnology confines the understanding of the basic physics, chemistry, biology, and technology of nanoscaled objects, and has considerably improved various technical and industrial sectors including information, medicine, and energy, etc. [1]
The process offers the advantages of molding/patterning large areas with nanofeatures, and refrains the limitations associated with lithography that requires time-consuming exposure and development [5]
The results suggest that the embossed quality of the nanofeature decreased with the moving speed
Summary
Nanotechnology confines the understanding of the basic physics, chemistry, biology, and technology of nanoscaled objects, and has considerably improved various technical and industrial sectors including information, medicine, and energy, etc. [1]. To further minimize heating and cooling times, an ultraviolet (UV) embossing method [8,9] was used This technique employs a UV-curable photopolymer and utilizes UV radiation to cure the photopolymer. Polymers 2021, 13, 405 technique employs a UV-curable photopolymer and utilizes UV radiation to cure the photopolymer. This low pressure and temperature UV embossing scheme allows significant. To prepare thethe nanofeatured template, polystyrene nanospheres (900 and nm) were overlaid on a silicon substrate employing a spin coater. The roller was driven by a step motor and compressed the UV-curable resin against the glass substrate to form the nanofeatured layer, which was subsequently cured by UV radiation. The influence of distinct processing variables on duplicated film quality was evaluated
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