A Study on Fabrication Process of Gold Microdisk Arrays by the Direct Imprinting Method Using a PET Film Mold

Potejanasak, Potejana

doi:10.3390/cryst11121452

Cited by 2 publications

(2 citation statements)

References 28 publications

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“…It was also revealed that the good uniformity of micro-ring structures led to higher improvement, while an exposed gold layer caused a reduction in the height and an expansion of the spectral absorbance. It is conceivable that the enhanced spectral absorbance can be controlled by the gold micro-ring structures on a quartz glass plate [23,24]. The optical characteristics of the gold layer on a glass plate were assessed via extinction spectrum.…”

Section: The Spectral Absorbance Propertiesmentioning

confidence: 99%

Fabrication of Metallic Nano-Ring Structures by Soft Stamping with the Thermal Uplifting Method

2022

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In this study, the unconventional microfabrication method by the combined processes of the chemical soft stamping technique with the thermal uplifting technique to fabricate metal nanoarrays on a glass plate is proposed and their feasibility verified. The gold micro-ring arrays on a quartz glass plate are realized by utilizing a chemical template with the thermal uplifting method. Their optical properties are studied experimentally. First, a plastic mold is made of a Biaxially Oriented Polyethylene Terephthalate (BOPET) via the hot embossing method. Then, the Methanal micropatterns are transferred onto an etched surface of a substrate via a soft stamping process with a BOPET mold. The gold thin film is coated onto the methanol patterned glass plate via the Ar+ sputter coating process. Finally, the metallic micro-ring structures are aggregated on a glass plate via the thermal uplifting technique. The LSPR optical properties as the extinction spectrums of the gold micro-ring structure arrays are investigated experimentally. It is confirmed that this method was able to fabricate plasmonic micro-ring arrays with low cost and high throughput.

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Section: The Spectral Absorbance Propertiesmentioning

confidence: 99%

Fabrication of Metallic Nano-Ring Structures by Soft Stamping with the Thermal Uplifting Method

2022

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“…This technique, while innovative, has prompted further investigation into its scalability and application in the real world. Furthermore, the fabrication of metallic nanodot arrays has been explored using the nanochemical stamping technique with a polymer stamp [ 35 , 36 ]. This approach offers a high degree of precision and repeatability, making it suitable for applications in nanoelectronics and photonics.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Nanogroove Arrays on Acrylic Film Using Micro-Embossing Technique

Raksiri,

Potejanasak,

Dokyor

2023

Polymers

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The fabrication of nanostructures is of great importance in producing biomedical devices. Significantly, the nanostructure of the polymeric film has a significant impact on the physical and biophysical behavior of the biomolecules. This study presents an efficient nanofabrication method of nanogroove structures on an acrylic film by the micro-embossing process. In this method, a master mold was made from a thermos oxide silicon substrate using photolithography and etching techniques. An isotropic optical polymethyl methacrylate (PMMA) film is used in the experiment. The acrylic film is known for its excellent optical properties in products such as optical lenses, medical devices, and various general purpose engineering plastics. Then, the micro-embossing process was realized to fabricate nanogroove patterns on an acrylic film by using a micro-embossing machine. However, the morphology of the nanopatterns on an acrylic film was characterized by using an atomic force microscope to measure the dimensions of the nanogroove patterns. The impact of embossing temperature on the morphology of nanogroove patterns on acrylic film is experimentally investigated. The results show that when the embossing temperature is too small, the pattern is not fully formed, and slipping occurs in nanopatterns on the acrylic film. On the other hand, the effect of increasing the embossing temperature on the morphology of nanogrooves agrees with the master mold, and the crests between the nanogrooves form straight edges. It should be noted that the micro-embossing temperature also strongly influences the transferability of nanopatterns on an acrylic film. The technique has great potential for rapidly fabricating nanostructure patterns on acrylic film.

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A Study on Fabrication Process of Gold Microdisk Arrays by the Direct Imprinting Method Using a PET Film Mold

Cited by 2 publications

References 28 publications

Fabrication of Metallic Nano-Ring Structures by Soft Stamping with the Thermal Uplifting Method

Fabrication of Metallic Nano-Ring Structures by Soft Stamping with the Thermal Uplifting Method

Fabrication of Nanogroove Arrays on Acrylic Film Using Micro-Embossing Technique

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